From: Bob Margolis Subject: (fractint) Fractal Geometry Summer Workshop Date: 01 Nov 2000 04:59:20 -0600 Roger Bagula posted the following URL to a couple of the fractal newsgroups. It may be of interest to the newbies amongst us who want to know the mechanics behind the Mandelbrot and Julia Sets. Bob ========== Introduction to Fractal Geometry Yale University, August 2000. Michael Frame and Benoit Mandelbrot http://classes.yale.edu/99-00/math190a/index.html Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Jim Muth Subject: (fractint) FOTD 01-11-00 (Old Gold Minibrot [4]) Date: 01 Nov 2000 07:26:45 -0500 (EST) FOTD -- November 01, 2000 (Rating 5) Fractal visionaries and enthusiasts: I'm posting this at 7:15am because last evening both internet providers were inaccessible. This afternoon, (October 31), while browsing the fine selection of fractals posted to A.B.P.F., I wondered whether such images can honestly be called fractals. Then, realizing how the idea of what constitutes a fractal has changed in recent years, I wondered whether the old-fashioned style images I post in the FOTD can still be called fractals. Since the nature of the two styles of images is so different, I doubt that both can still be considered fractals. The images I create are done more in fun than with creative effort, usually involving little more than flat iteration bands and an adequate color palette. Sometimes the time from boot-up to completed image is less than 15 minutes. Except for the CPU speed increase, this is the same way I worked with fractals 10 years ago. But in that time, fractal programs have changed. They have evolved into virtual graphic programs. This is good, for it gives the fractalist much additional creative opportunity, albeit at the expense of that vague and debatable ideal, fractal purity. However, I feel that we have reached the point where fractal art has become so far removed from the original idea of fractals that the two can no longer be considered the same thing. This in no way reduces my opinion of the more artistic images, but I feel that some distinction must be made between the type of images I create and the type of images that appear on A.B.P.F. Since the more artistic fractalists remain satisfied calling the images they produce fractals, I will change the description of my images from fractals to classic fractals. The appearance of the images themselves, as well as the discussion will remain unchanged. As a simple example, today's image explores the fractal that results when the expression Z^(-14)+2.5Z^(-1.45)+(1/C) is iterated. I named it "The Lost Minibrot" because that title seemed poetic, and not because I lost it, which obviously is not the case. The picture rates a perfectly average 5. The parameter file renders in a dragging 14 minutes, making a download of the GIF image file from: or from: the far wiser choice. The fractal weather today (Halloween) was perfect, and the cats took full advantage of the perfection. In the 61F (16C) degree air they romped and frolicked until they exhausted themselves, a time which is quite short for gloriously middle-aged classic fractal cats. I'll return tomorrow, (now later today), with another classic fractal and more words of wisdom. Until then, take care, and regardless of what you call them, keep those fractals coming. Jim Muth jamth@mindspring.com START 20.0 PAR-FORMULA FILE================================ The_Lost_Minibrot { ; time=0:17:02.17 -- SF5 on a P200 reset=2001 type=formula formulafile=critical.frm formulaname=MandelbrotMix4 function=recip passes=1 center-mag=+1.85728145477441900/-0.23424119516995760\ /5531863/1/162.499 params=1/-14/2.5/-1.45/0/0 float=y maxiter=1800 inside=0 logmap=204 periodicity=10 colors=000X4A_5A_7A_8A<3>dEAfGAgHAhJAjIAlK9lL8lM7<9>\ RF2OE2MD1<2>GB0EB0DC1<32>7eK7fL6gL<3>6jN<13>bqfdrhgr\ i<2>ntnptoqqprtprjmrjjq`gq_dqUaqQ_<19>cmAco9bp8<3>`t\ 3<39>OGKOFKOEL<2>NBMNAMOBN<9>ODXODYODZOE_OE`<9>ONiOO\ jOPk<2>OSnNTpOUn<3>OYjPZiP_hP`gPaf<3>_ebbfaeg`hi_<3>\ ttWwwVzzU<18>zzBzzAzz9<2>zz7zz6zz6zz6<3>zz7 } frm:MandelbrotMix4 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l } END 20.0 PAR-FORMULA FILE================================== Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "=?Windows-1252?B?UHVza+FzIElzdHbhbiBqci4=?=" Subject: Midgets - Re: (fractint) FOTD 29-10-00 (The Green Goblet [5]) Date: 01 Nov 2000 22:34:02 +0100 >What is necessary for an image to have midgets? should the power o Z be >greater than 2?? Are 'midgets' the smaller Mandelbrot-shapes in the main Mandelbrot-set and the small 'clones' in other sets? If yes: I think that the iteration should be trapped with some starting values (the value of 'Z' should settle to a low value, instead of increasing toward infinity). The Mandelbrot-set and the 'connected' Julia-sets have this behaviour, the 'unconnected' Julia-sets and some other formulas - type=sierpinski, type=unity - don't. This may depend on the exponent in use for some formulas. Sorry for posting this so late, I forgot to send it. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Subject: Re: Midgets - Re: (fractint) FOTD 29-10-00 (The Green Goblet [5]) Date: 02 Nov 2000 15:01:10 +1300 =?Windows-1252?B?UHVza+FzIElzdHbhbiBqci4=?= (if that is the writer's name) said: > >What is necessary for an image to have midgets? should the power o Z be > >greater than 2?? > In the dynamic? As in z^2+c? I guess you mean "greater than or equal to 2". Lemme just switch to Fractint for a sec... Well, I found a recognisable Mandelbrot midget - a slightly nicked z^2+c-like one - in z^1.9+c. > Are 'midgets' the smaller Mandelbrot-shapes in the main Mandelbrot-set and > the small 'clones' in other sets? > Yes; also called "minibrots" or sometimes "atoms". > If yes: > I think that the iteration should be trapped with some starting values (the > value of 'Z' should settle to a low value, instead of increasing toward > infinity). The Mandelbrot-set and the 'connected' Julia-sets have this > behaviour, the 'unconnected' Julia-sets and some other formulas - > type=sierpinski, type=unity - don't. This may depend on the exponent in use > for some formulas. > The Mandelbrot Set and its Julia sets are defined by this property (z's being bounded in magnitude): points within the set lead to bounded orbits, orbits starting from points outside diverge towards infinity. In "unconnected" Julias (or "dusts"), the set is - what topologists would call - of measure zero, which is to say that the points of the set are isolated from each other. At any finite resolution, therefore, all you see are points _outside_ the set. In the Unity fractal, the set is the unit circle (hence the name): the fractal fun & games is a consquence of the method for finding it. I leave Sierpinski's gasket as an exercise for the reader. None of this really helps in determining when (and where) midgets should occur: the question gets even harder when you consider that some of these midgets (an infinite number, in fact - nay, the vast majority) are so badly distorted that they're often unrecognisable. Morgan L. Owens "Lesser fleas." Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "David Jones" Subject: Re: (fractint) Fractal Geometry Summer Workshop Date: 01 Nov 2000 18:38:37 -1000 The book "Turbulent Mirror" has a very good discussion and explanation of fractals that would be very good for newbies to fractals. On 1 Nov 00 at 4:59, Bob Margolis wrote: > Roger Bagula posted the following URL to a couple of the > fractal newsgroups. It may be of interest to the newbies > amongst us who want to know the mechanics behind the > Mandelbrot and Julia Sets. Another blast of bits from David http://home.hawaii.rr.com/aliasjj/ http://www.hawastsoc.org/ For the best Hawaii & Pacific Basin surf forecast: http://www.surfreporthawaii.com Random Thought for this Nanosecond Sorry - insufficient processing power. Upgrade brain (y) (n)? (D.Jones) Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "David Jones" Subject: Re: (fractint) FOTD 01-11-00 (Old Gold Minibrot [4]) Date: 01 Nov 2000 18:38:36 -1000 On 1 Nov 00 at 7:26, Jim Muth wrote: > Since the more artistic fractalists remain satisfied > calling the images they produce fractals, I will > change the description of my images from fractals to > classic fractals. Wrong choice. *real* fractals. IMHO, fractal images using layering et al - whether or not the layering is done in the fractal generator or in a separate program - are post-processed, and no longer fractals to me. Another blast of bits from David http://home.hawaii.rr.com/aliasjj/ http://www.hawastsoc.org/ For the best Hawaii & Pacific Basin surf forecast: http://www.surfreporthawaii.com Random Thought for this Nanosecond Observe with the eyes; work with the hands. (D.Jones) Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Jim Muth Subject: (fractint) Classic FOTD 02-11-00 (Meteor Impact [6]) Date: 02 Nov 2000 00:25:51 -0500 (EST) Classic FOTD -- Nov. 02, 2000 (Rating 6) Fractal visionaries and enthusiasts: I hope I've got everything right tonight. Last night, when I tried to post my FOTD, I found both Mindspring (Earthlink) and AOL inaccessible. Finally, early this morning, when I gained access, I forgot to update the image name. But no harm done -- the image wasn't that good anyway. Today's image is better, at least good enough to rate a somewhat above average 6. The brilliant object in the picture reminds me of a meteor plunging through earth's atmosphere on its way to a surface impact, which is why I named the image "Meteor Impact". The actual meteor is a midget in a remote part of the Z^1.195+C fractal. And I did touch up the colors in a graphic program. When I run the image through a graphic program, I never change it so much that it cannot be defined in a parameter file, so running the parameter file will produce exactly the same image as has been posted to: and to: The fractal weather was perfectly perfect all day, with a temperature of 62F (16.5C) and not a single cloud to mar the deep blue sky. The fractal cats showed approval by lounging in the yard for several hours, trying to decide what trouble to get into. My philosophical muse has been absent ever since I lost that long FOTD article a few nights ago. I'm hoping she'll return before too long. Until tomorrow, take care, and be good, but not too good. Jim Muth jamth@mindspring.com START 20.0 PAR-FORMULA FILE================================ Meteor_Impact { ; time=0:12:00.00 -- SF5 on a p200 reset=2001 type=formula formulafile=branchct.frm formulaname=MandelbrotBC passes=1 center-mag=-2.72959302366478800/+9.28940913170944800\ /74.45881/1/90 params=1.195/0/4.671/0 float=y maxiter=75000 inside=255 logmap=22 periodicity=10 colors=000B00B00E00G00H00L00M00P00R00U00V00X00_00_00\ b00b00d00<2>e00e00g00<2>h00h10j10<2>k10k10m20n20n40p\ 40p40q60q60r60t70t70v90v90w90wB0yB0zB0zD0<2>zE1zE1zG\ 2zG2zG4zH4zH6zJ6zJ6zJ7zL7zL9zL9zMBzMBzL7zMB<3>zMHzMJ\ zOM<3>zOSzOUzPX<3>zPbzPdzPezRhyRjyRkwRmwRnvRpvSrtStt\ SvrSwrSyqSzqUzpUzpUznUznUzmUzqMzmUzhazdhyakrXkkSkePk\ _RkYSkYUkXVkXXkVYkVYkR<2>bkadkddkg<3>jkrJkm<2>apzgqz\ mrzrtzyvzzwzzyz<23>zzyzzyzzy<3>zzyzzzzzyzzvzzrzzpzzk\ zzhzzezzbzzYzzVzzSzzPzzLzzHzzEzzBzz6zz2zz0zz0zz0zz2z\ z4zz4zz4zz4zz6zz6zz6wz6tz7qz7pz7mz7kz7kz9<2>kz9nzBqz\ BtzBwzBzzDzzDzzDzzDzzBzzD<5>zzEzzEzzEzzG<6>zzHzzHzzJ\ <2>zzJzzJzzL<6>zzMzzMzzO<3>zzOzzSzzz } frm:MandelbrotBC = { ; Z = Z^E + C e=p1 p=real(p2)+PI q=2*PI*trunc(p/(2*PI)) r=real(p2)-q Z=C=Pixel: Z=log(Z) IF(imag(Z)>r) Z=Z+flip(2*PI) ENDIF Z=exp(e*(Z+flip(q)))+C |Z|<100 } END 20.0 PAR-FORMULA FILE================================== Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Ralph Feltens Subject: Re: (fractint) FOTD 01-11-00 (Old Gold Minibrot [4]) Date: 02 Nov 2000 13:27:53 +0100 Hi there

I'm just another one of those people that after years of using fractint were lured to Ultrafractal and its layering capabilities. IMO, layering per se is not a sufficient reason to reject the resulting picture as not being a fractal any more. For as long as you are using the same formula and coordinates for all of the layers, the underlying fractal shape will stay invariant.

The use of different coloring (& layering) algorithms, of course, can lead to remarkably diverse results. But if you felt so inclined, you would still be able to reproduce the fractal by using a single coloring algorithm (probably a quite complex one) in a single layer image à la fractint (missing true color support or other limitations that are program- but not fractal-specific not being taken into consideration). So the use of layering techniques should not be irreconcilable with "fractal purism".

There are always some arbitrary choices to be made when generating a fractal, even a simple one in fractint: choice of colormap, spread of the colormap (e.g. log mapping), bailout radius (effects the position of the color bands). Not to speak of the choices nessessary to generate one of the beautiful orbit type fractals made popular by Paul Carlson ...

Regards

Ralph Feltens

PS. Somebody on this list (was it Jim Muth?) already stated the fact that all we see is not a fractal, but the image of a fractal ...

David Jones wrote:

On  1 Nov 00 at 7:26, Jim Muth wrote:

> Since the more artistic fractalists remain satisfied
> calling the images they produce fractals, I will
> change the description of my images from fractals to
> classic fractals.

Wrong choice. *real* fractals. IMHO, fractal images using
layering et al - whether or not the layering is done in
the fractal generator or in a separate program - are
post-processed, and no longer fractals to me.

Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Subject: Re: (fractint) FOTD 01-11-00 (Old Gold Minibrot [4]) Date: 03 Nov 2000 12:16:44 +1300 Ralph Feltens said: >

There are always some arbitrary choices to be made when generating a > fractal, even a simple one in fractint: choice of colormap, spread of the > colormap (e.g. log mapping), bailout radius (effects the position of the > color bands). Not to speak of the choices nessessary to generate one of > the beautiful orbit type fractals made popular by Paul > Carlson ... > Having seen some of the par files that Ultra Fractal uses, it seems that "arbitrary choices" make up the vast bulk of the task - layering/compositing, colouring, etc., but where's the fractal declared? Morgan L. Owens "The Gimp uses smaller scripts" Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Fernando Bresslau" Subject: Re: Midgets - Re: (fractint) FOTD 29-10-00 (The Green Goblet [5]) Date: 02 Nov 2000 23:41:03 -0200 Thanks for the answers. yes, I was meaning the small mandelbrot copies in the z^something + c fractal. Actually, the mandelbrotmix4, which is a generalization of the previous formula. It happens sometimes that you hit on a fractal (by choosing the exponents and multipliers in the formula) that has lots of midgets quite visible and obvious. Other times that´s isn´t true. In some cases you get an unconnected set, others the seems to be conected, but hasn´t midgets, not even deformed ones. the mm4 formula is nice because it initializes the pixels (I think) in a way that we get undeformed midgets. So the question was which is the condition to the existence of midgets (even deformed ones) and I add now another one: when does a set get diconected? maybe it would be good to concentrate the analysis to the mm4 formula, which is namely z=k*((a*(z^b))+(d*(z^f)))+c being k, a, b, c, f the parameters at the z screen. Tahnks, Fernando Bresslau ----- Original Message ----- Sent: Thursday, November 02, 2000 12:01 AM > =?Windows-1252?B?UHVza+FzIElzdHbhbiBqci4=?= (if that is the writer's name) > said: > > >What is necessary for an image to have midgets? should the power o Z be > > >greater than 2?? > > > In the dynamic? As in z^2+c? I guess you mean "greater than or equal to 2". > Lemme just switch to Fractint for a sec... > > Well, I found a recognisable Mandelbrot midget - a slightly nicked z^2+c-like > one - in z^1.9+c. > > > Are 'midgets' the smaller Mandelbrot-shapes in the main Mandelbrot-set and > > the small 'clones' in other sets? > > > Yes; also called "minibrots" or sometimes "atoms". > > > If yes: > > I think that the iteration should be trapped with some starting values (the > > value of 'Z' should settle to a low value, instead of increasing toward > > infinity). The Mandelbrot-set and the 'connected' Julia-sets have this > > behaviour, the 'unconnected' Julia-sets and some other formulas - > > type=sierpinski, type=unity - don't. This may depend on the exponent in use > > for some formulas. > > > The Mandelbrot Set and its Julia sets are defined by this property (z's being > bounded in magnitude): points within the set lead to bounded orbits, orbits > starting from points outside diverge towards infinity. In "unconnected" Julias > (or "dusts"), the set is - what topologists would call - of measure zero, > which is to say that the points of the set are isolated from each other. At > any finite resolution, therefore, all you see are points _outside_ the set. > > In the Unity fractal, the set is the unit circle (hence the name): the fractal > fun & games is a consquence of the method for finding it. > > I leave Sierpinski's gasket as an exercise for the reader. > > None of this really helps in determining when (and where) midgets should > occur: the question gets even harder when you consider that some of these > midgets (an infinite number, in fact - nay, the vast majority) are so badly > distorted that they're often unrecognisable. > > Morgan L. Owens > "Lesser fleas." > > -------------------------------------------------------------- > Thanks for using Fractint, The Fractals and Fractint Discussion List > Post Message: fractint@lists.xmission.com > Get Commands: majordomo@lists.xmission.com "help" > Administrator: twegner@fractint.org > Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Multiple Bogeys" Subject: (fractint) Re: Meteor Date: 02 Nov 2000 20:39:42 EST Cool image. I can hear the "disaster" music from Armageddon when I see it... _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Multiple Bogeys" Subject: (fractint) A remark on fractal "purity" Date: 02 Nov 2000 20:43:45 EST Purity is clearly not a black and white distinction. Some would say that only the spare elegance of boundary scan/MIIM/distance estimator images are truly pure. Others include heavily post-processed images whenever the basic fractal image is enhanced rather than obfuscated or mutilated by the post-processing. I'd say it's a continuum, but that it's reasonably pure as long as the basic fractal is clear -- for example in some of the images I've experimented with recently, including anti-aliased images (done by making large images in D&C mode and resampling in Corel Photo-Paint) and truecolor images (I make three separate greyscale images, with different logmap settings, and use Corel's Combine Channels option to merge them as the red, green, and blue components of the result). The results look pretty "pure" to me... _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Jim Muth Subject: (fractint) Classic FOTD 03-11-00 (Ionized Mandelbrot [7]) Date: 02 Nov 2000 23:33:38 -0500 (EST) Classic FOTD -- November 03, 2000 (Rating 7) Fractal visionaries and enthusiasts: Today's striking fractal was created by a rather unusual formula -0.002*(Z^1000)+0.02*(Z^(-2))+(1/C). The parameters were chosen entirely at random, as are the parameters for nearly all my fractals. I named the image "Ionized Mandelbrot" because of the fuzzy, purplish-blue aura around the midget, which reminds me of the ionized glow in a vacuum tube. Since the picture is better than the past few days' efforts, I rated it an above-average 7 on my 0-to-10 scale of fractal worth. A day or so ago, a message was posted to the Fractint list, asking what was necessary for a fractal to have midgets. The truth is that after working with the MandelbrotMix4 formula for over a year, I just don't know. To begin, it is difficult to define exactly what a midget is. Many fractals are filled with holes that I do not consider midgets. By a 'midget' I usually mean a tiny, often distorted, classic Mandelbrot shape embedded in a larger fractal. These tiny Mandelbrot shapes are sometimes called 'atoms'. The easiest answer would be that midgets are present in all fractals of the form Z^n+C, where 'n' is greater than 1 and Z is initialized at the critical point of the formula. But the midgets are almost impossible to find in fractals where 'n' is less than 1.2. As 'n' is increased to higher values, the midgets become easier to find, but ever less interesting, eventually degenerating into boring lopsided circles. The M-Mix4 formula automatically initializes Z to a critical point of the iterated formula, but not all formulae have midgets, and in many other fractals only certain limited parts have midgets. I have much more to discover about when and where midgets I'll return to the topic of midgets in a day or two. For now it's time to give a reminder that today's image takes 8 minutes to render from the parameter file, and only a minute or so to download from: or from: The fractal weather today was perfect, with sunny skies and a temperature of 68F (20C), which lured the fractal cats onto the porch and then into the yard, where they sampled the cat-mint plant. The philosophy is still sleeping, but I've got a few hours to go yet in my day. It's just enough time to find a fractal and catch up on the fractal-art list, which has suddenly come alive. Until tomorrow, take care, and do fractals exist as real objects, or are they mere thoughts -- or are they both? Jim Muth jamth@mindspring.com START 20.0 PAR-FORMULA FILE================================ Ionized_Mandelbrot { ; time=0:08:08.58 -- SF5 on a P200 reset=2001 type=formula formulafile=critical.frm formulaname=MandelbrotMix4 function=recip passes=1 center-mag=+7.625829827008553/+0.00937269972207/3.58\ 9962e+011/1/129.992/0.007 params=1/1000/-10/-2/-1.00\ 2/5000 float=y maxiter=1400 inside=0 logmap=168 periodicity=10 colors=000805A07C08D0CF0DG0FI0IJ0JL0L<5>L0eL0hL0k<3>\ L1yL2zL2zL4zLOzDUzKYz0az0hz0oz0pz0ps1np<2>FehJceO`a<\ 3>dPQhMOkJLnIOoGQpGTrFWsDZuDaxCdyCgzAiz8l<2>z7uy4lr1\ e<3>T0AM01G00I00J00J02L04M07M0AO0CO0FP0IQ0JQ0MS0PS0Q\ W0TZ0Vc1We4Zi5`l7apAdsCexDgzGizIkzJlzLn<3>yWevZcsaap\ dZngYkiVhlTeoQcrP`uMYxLWzJVvMVrPVnQTkTTgVTcYSZ`SWaSS\ dQOeQJhQGiPM`OQZMWYM`WQWV<3>lFPTLOQMPOOSLPVGSQDTOAVJ\ 7WG2ZD0`80a50c20hA0lI<2>0ya<2>0zv0zz0zz0zy0xy0py0iy0\ cy0Wy0Px0Ox<3>0Qx0Vr<3>0ha0lY0oT0sO0xJ0zF<2>0z10z00z\ 41zA4zGAzM<2>OydSviWuh`xg<3>pnauk`yhZzF0<2>n1Mi0Ve0a\ c0hh0en4csC`xJYzQVzYSzdQ<2>zhOziOzkM<2>yoLvpMsrOrsPo\ uQlvSkxThyTgzVdzWazY`zZYz`Wz`szGzz0zz1zz5zzAzzFzzI<2\ >yzVvzYuzarzepziozlrzh<3>xzSyzOzzJ<3>zz14z05z17z2 } frm:MandelbrotMix4 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l } END 20.0 PAR-FORMULA FILE================================== Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Baerbel Strauch" Date: 03 Nov 2000 08:42:35 CET hi there, i´m a big admirer of the fractal-art and i love your page...i would like to know: is there a beginners manual for working with/on fractals; some explanations , photographs, webpages... i´m also intetested in books. i´d love to create my own fractals! thank u, bärbel _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Paul N. Lee" Subject: (fractint) Re: Date: 03 Nov 2000 01:56:51 -0600 Bärbel Strauch wrote: > > hi there, > i´m a big admirer of the fractal-art and i love > your page...i would like to know: > is there a beginners manual for working with/on > fractals; some explanations, photographs, webpages... > i´m also intetested in books. > i´d love to create my own fractals! > thank u, > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ SHORT AND SIMPLE: The fractal related newsgroups, discussion lists, and websites get a lot of requests regarding fractal information. The following is by no means an exhaustive listing. (For the exhaustive list see the next section of this document.) Just below is a listing of a few of the programs (some freeware; some shareware) frequently used by persons posting to the newsgroup. Flarium/Iterations/Tiera-Zon/Sterling-ware/and others.... http://www.eclectasy.com/Iterations-et-Flarium24/ (mirror) http://www-hs.iuta.u-bordeaux.fr/ferguson/ Fractal ViZion/Fractal ZPlot/and others.... http://www.geocities.com/SoHo/Lofts/5601/ Fractint http://spanky.triumf.ca/www/fractint/ Fractal eXtreme http://www.cygnus-software.com/ Fractal Orbits 32 http://spanky.triumf.ca/pub/fractals/programs/ibmpc/windows/fo32201.zip UltraFractal http://www.ultrafractal.com/ For the MAC: FracPPC & Fractal Domains http://www.fractaldomains.com/ other MAC programs: http://hypertextbook.com/chaos/92.shtml http://spanky.triumf.ca/pub/fractals/programs/MAC/ http://iq.tvsoft.com/~dplatt/mac/ http://www.swin.edu.au/astronomy/pbourke/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ For an exhaustive list of fractal generators, galleries featuring fractals, and other fractal related information, go to the following: http://home.att.net/~Paul.N.Lee/Fractal_Software.html and http://home.att.net/~Paul.N.Lee/Fractal_Links.txt and http://home.att.net/~Paul.N.Lee/Fractal_Census.html +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Sincerely, P.N.L. http://www.fractalus.com/cgi-bin/theway?ring=fractals&id=43&go Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Fernando Bresslau" Subject: (fractint) Re: Date: 03 Nov 2000 10:08:02 -0200 Hi, Bärbel. I myself work mostly with two programs: fractint and Ultrafractal. Both of them have nice webpages, with lots of info, including for beginners. So I sugggest you take a look at www.fractint.org and www.ultrafractal.com where you will find links to downloads of the programs and to resources, tutorials and goodies for beginners. Thak you for your interest, Fernando Bresslau http://www.fractal.art.br ----- Original Message ----- Sent: Friday, November 03, 2000 6:42 AM > hi there, > i´m a big admirer of the fractal-art and i love your page...i would like to > know: > is there a beginners manual for working with/on fractals; some explanations > , photographs, webpages... i´m also intetested in books. > i´d love to create my own fractals! > thank u, > bärbel > _________________________________________________________________________ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > Share information about yourself, create your own public profile at > http://profiles.msn.com. > > > -------------------------------------------------------------- > Thanks for using Fractint, The Fractals and Fractint Discussion List > Post Message: fractint@lists.xmission.com > Get Commands: majordomo@lists.xmission.com "help" > Administrator: twegner@fractint.org > Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Fernando Bresslau" Subject: Re: (fractint) Classic FOTD 03-11-00 (Ionized Mandelbrot [7]) Date: 03 Nov 2000 10:17:19 -0200 Thanks, Jim, for the nice answer and for the nice midget... I´ll start iterating formulas with z´s bigger than 1.5, maybe a lot bigger, like 1e20... Fernando Bresslau http://www.fractal.art.br ----- Original Message ----- Cc: Sent: Friday, November 03, 2000 2:33 AM > > Classic FOTD -- November 03, 2000 (Rating 7) > > Fractal visionaries and enthusiasts: > > Today's striking fractal was created by a rather unusual formula > -0.002*(Z^1000)+0.02*(Z^(-2))+(1/C). The parameters were chosen > entirely at random, as are the parameters for nearly all my > fractals. > > I named the image "Ionized Mandelbrot" because of the fuzzy, > purplish-blue aura around the midget, which reminds me of the > ionized glow in a vacuum tube. Since the picture is better than > the past few days' efforts, I rated it an above-average 7 on my > 0-to-10 scale of fractal worth. > > A day or so ago, a message was posted to the Fractint list, > asking what was necessary for a fractal to have midgets. The > truth is that after working with the MandelbrotMix4 formula for > over a year, I just don't know. To begin, it is difficult to > define exactly what a midget is. Many fractals are filled with > holes that I do not consider midgets. By a 'midget' I usually > mean a tiny, often distorted, classic Mandelbrot shape embedded > in a larger fractal. These tiny Mandelbrot shapes are sometimes > called 'atoms'. > > The easiest answer would be that midgets are present in all > fractals of the form Z^n+C, where 'n' is greater than 1 and Z is > initialized at the critical point of the formula. But the > midgets are almost impossible to find in fractals where 'n' is > less than 1.2. As 'n' is increased to higher values, the > midgets become easier to find, but ever less interesting, > eventually degenerating into boring lopsided circles. > > The M-Mix4 formula automatically initializes Z to a critical > point of the iterated formula, but not all formulae have > midgets, and in many other fractals only certain limited parts > have midgets. I have much more to discover about when and where > midgets > > I'll return to the topic of midgets in a day or two. For now > it's time to give a reminder that today's image takes 8 minutes > to render from the parameter file, and only a minute or so to > download from: > > > > or from: > > > > The fractal weather today was perfect, with sunny skies and a > temperature of 68F (20C), which lured the fractal cats onto the > porch and then into the yard, where they sampled the cat-mint > plant. > > The philosophy is still sleeping, but I've got a few hours to go > yet in my day. It's just enough time to find a fractal and > catch up on the fractal-art list, which has suddenly come alive. > Until tomorrow, take care, and do fractals exist as real objects, > or are they mere thoughts -- or are they both? > > > Jim Muth > jamth@mindspring.com > > > START 20.0 PAR-FORMULA FILE================================ > > Ionized_Mandelbrot { ; time=0:08:08.58 -- SF5 on a P200 > reset=2001 type=formula formulafile=critical.frm > formulaname=MandelbrotMix4 function=recip passes=1 > center-mag=+7.625829827008553/+0.00937269972207/3.58\ > 9962e+011/1/129.992/0.007 params=1/1000/-10/-2/-1.00\ > 2/5000 float=y maxiter=1400 inside=0 > logmap=168 periodicity=10 > colors=000805A07C08D0CF0DG0FI0IJ0JL0L<5>L0eL0hL0k<3>\ > L1yL2zL2zL4zLOzDUzKYz0az0hz0oz0pz0ps1np<2>FehJceO`a<\ > 3>dPQhMOkJLnIOoGQpGTrFWsDZuDaxCdyCgzAiz8l<2>z7uy4lr1\ > e<3>T0AM01G00I00J00J02L04M07M0AO0CO0FP0IQ0JQ0MS0PS0Q\ > W0TZ0Vc1We4Zi5`l7apAdsCexDgzGizIkzJlzLn<3>yWevZcsaap\ > dZngYkiVhlTeoQcrP`uMYxLWzJVvMVrPVnQTkTTgVTcYSZ`SWaSS\ > dQOeQJhQGiPM`OQZMWYM`WQWV<3>lFPTLOQMPOOSLPVGSQDTOAVJ\ > 7WG2ZD0`80a50c20hA0lI<2>0ya<2>0zv0zz0zz0zy0xy0py0iy0\ > cy0Wy0Px0Ox<3>0Qx0Vr<3>0ha0lY0oT0sO0xJ0zF<2>0z10z00z\ > 41zA4zGAzM<2>OydSviWuh`xg<3>pnauk`yhZzF0<2>n1Mi0Ve0a\ > c0hh0en4csC`xJYzQVzYSzdQ<2>zhOziOzkM<2>yoLvpMsrOrsPo\ > uQlvSkxThyTgzVdzWazY`zZYz`Wz`szGzz0zz1zz5zzAzzFzzI<2\ > >yzVvzYuzarzepziozlrzh<3>xzSyzOzzJ<3>zz14z05z17z2 > } > > frm:MandelbrotMix4 {; Jim Muth > a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), > g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, > k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): > z=k*((a*(z^b))+(d*(z^f)))+c, > |z| < l > } > > END 20.0 PAR-FORMULA FILE================================== > > > -------------------------------------------------------------- > Thanks for using Fractint, The Fractals and Fractint Discussion List > Post Message: fractint@lists.xmission.com > Get Commands: majordomo@lists.xmission.com "help" > Administrator: twegner@fractint.org > Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Barry N. Merenoff" <110144.2274@compuserve.com> Subject: Midgets - Re: (fractint) FOTD 29-10-00 (The Green Goblet Date: 03 Nov 2000 13:38:24 -0500 Message text written by INTERNET:fractint@lists.xmission.com >I think that the iteration should be trapped with some starting values< That's an interesting idea. Could you please elaborate on it? Or maybe se= nd a sample Par? Sincerely, Collin Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Barry N. Merenoff" <110144.2274@compuserve.com> Subject: Re: Midgets - Re: (fractint) FOTD 29-10-00 (The Green Date: 03 Nov 2000 14:13:01 -0500 Message text written by INTERNET:fractint@lists.xmission.com >In "unconnected" Julias = (or "dusts"), the set is - what topologists would call - of measure zero,= = which is to say that the points of the set are isolated from each other.<= Not quite. A dust has a "topological dimension" of zero. A connected Juli= a has a topological dimension of one, and a fractal with a decorated interi= or has a topological dimension of two. Note that the topological dimension i= s always an integer, and is not the quantity usually referred to as dimension. That usual quantity is the Hausdorff dimension, which is alway= s greater than the topological dimension, and may be fractional. The measur= e of a fractal is in units of length to the power of the Hausdorff dimensio= n. For example, the Sierpinski Gasket has a topological dimension of 1 and a= Hausdorff dimension of 1.585. The measure is proportional to the 0.7925 power of the bounding triangle's area. The Mandelbrot Set, with a solid-color fill, has a topological dimension = of 1 and a Hausdorff dimension of 2, but its measure is zero. Because the topological dimension is 1, the measure includes only the boundary, not t= he interior. A Hausdorff dimension of 2 indicates that the measure is in ordinary units of area. This means that the boundary forms structures tha= t appear to be filled in with a boundary-only area, but which when magnifie= d are always seen to be merely a curve. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Barry N. Merenoff" <110144.2274@compuserve.com> Subject: Re: (fractint) Fractal Geometry Summer Workshop Date: 03 Nov 2000 14:19:46 -0500 Message text written by INTERNET:fractint@lists.xmission.com >The book "Turbulent Mirror" has a very good discussion = and explanation of fractals that would be very good for = newbies to fractals. < I thought "Turbulent Mirror" was too philosophical. "Fractals Everywhere"= sticks more to the subject. Sincerely, Collin Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Barry N. Merenoff" <110144.2274@compuserve.com> Subject: Re: (fractint) FOTD 01-11-00 (Old Gold Minibrot [4]) Date: 03 Nov 2000 14:27:57 -0500 Message text written by INTERNET:fractint@lists.xmission.com >but where's the fractal declared?< Mathematically speaking, the actual fractal is an abstract concept. Different choices of rendering the same formula are technically the same fractal. Sincerely, Collin Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Jim Muth Subject: (fractint) Classic FOTD 04-11-00 (Fractally Exciting [8]) Date: 03 Nov 2000 19:35:25 -0500 (EST) Classic FOTD -- November 04, 2000 (Rating 8) Fractal visionaries and enthusiasts: There's a lot of fractal in today's classic fractal, so much fractal in fact that I found the image fractally exciting. I named the picture accordingly, and rated it an outstanding 8. Once again I unwrapped the MandelbrotMix4 formula to search for my CFOTD. The exact fractal formula that was iterated to produce the rather spectacular midget is 0.1Z^(-1000)+Z^2+(1/C). The escape radius is 100. As do all fractals, the image has detail beyond limit. But this fractal exceeds even the expected detail. Rarely have I seen such a variety of color and detail in a fractal, especially a one-layer image rendered with the usual flat equal-iteration bands and inside=0. Of course, I revved up the colors a small amount in a graphic program, but the processed color palette has been incorporated into the parameter file, so regardless of whether one downloads the GIF image from: alt.binaries.pictures.fractals or from: or renders it directly from the attached parameter file, the image will display the full range of colors. Since the parameter file takes almost 18 minutes to render on a 200mhz Pentium, the download is the wiser choice. The fractal weather today was once again perfect. The high temperature reached 73F (23C), which made both the cats and me happy. The philosophy is still stagnated, waiting until my muse returns. Regardless of whether the muse returns tomorrow, I shall return with another fractal and a few words to go along with the fractal. For now, the day's work is done, and it's time to settle down for a relaxing evening in front of the TV, especially with a junky old movie or two showing. Until tomorrow, take care, and don't count your fractals until they're rendered. Jim Muth jamth@mindspring.com START 20.0 PAR-FORMULA FILE================================ Fractally_Exciting { ; time=0:17:51.43 -- SF5 on a P200 reset=2001 type=formula formulafile=critical.frm formulaname=MandelbrotMix4 function=recip passes=1 center-mag=-177.609990921166/+0.03714106316788/2.283\ 007e+008/1/-127.499/0.004 params=0.1/-1000/1/2/0/0 float=y maxiter=2000 inside=0 logmap=329 periodicity=9 colors=000pgzwnzzuzwrurprmnngmkbif_gbVf_PdXKaR<2>7XH\ CRGGMEKJCOEBRB9VEBXGCYJE_KGaMHdPJfRKgTMiXOkYPm_RnVXp\ PapMdrHisCns9rp6nm4mi2kf1ib0g_0d<2>P0_M0YK0XJ0TH2RGB\ PGHOEPMCXKBdJBkH9fG7bE7_C6XC4TB4P92M72J74O66R66V47_4\ 7b49f2Bi2Bn1Cr1Cu1Ey0Gz0<2>Hz0Mz1Pz2Tu6Xp7_i9bdCf_Ei\ TGmOJpHK<2>z1Rz0Tz0Yy0au1fs2ir4mn6rm7ui9zgBzfCziJsmP\ fpXTrdHn`EkYBgT9fR6bP4_N1XL0VJ0RH0OG0KD0JB0G90C60D50\ EC0GE0JE0KG0MG2PH7RHCVJHXJMYKRaKXbMadMfgYdkidmsdigOg\ X9fK0aO0YR0TV2PY4Ma7Hd9EgCBkE6nH2rJ0sKya7pXCgRG_MJTH\ MKCRC7V42Y00a24d79f<2>KPmPVpTar<2>fpy_spTwgMy_GzRBzK\ EyJHsHKnGOiGRfEVaCYXBaRByM9BJ7gE6n96r44u02y02nM1dk0X\ z0dz2ky6rsBymEzgJzbMzYP<2>zX6yX0yYCyYOy__y_kyawyazya\ zpbz<3>OizHkz9mz2nz0nyYMzz0zr7zbJuOXp7gk0uf0zb0zYGuV\ YpR_uXay_<3>gzrkzknzfpzaszVwzPyzKzzGzz9zz4zz0<2>zz0T\ zzYzzdzzkzz } frm:MandelbrotMix4 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l } END 20.0 PAR-FORMULA FILE================================== Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "David Jones" Subject: Re: (fractint) Fractal Geometry Summer Workshop Date: 03 Nov 2000 20:02:51 -1000 On 3 Nov 00 at 14:19, Barry N. Merenoff wrote: > Message text written by > INTERNET:fractint@lists.xmission.com > >The book "Turbulent Mirror" has a very good discussion > and explanation of fractals that would be very good for > newbies to fractals. < > > I thought "Turbulent Mirror" was too philosophical. > "Fractals Everywhere" sticks more to the subject. It is, particularly later on. But the explanation of who a fractal is and how they are made is very accessible. Another blast of bits from David http://home.hawaii.rr.com/aliasjj/ http://www.hawastsoc.org/ For the best Hawaii & Pacific Basin surf forecast: http://www.surfreporthawaii.com Random Thought for this Nanosecond Welfare is a class for Liberal Arts majors. (D.Jones) Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Multiple Bogeys" Subject: (fractint) Re: Date: 04 Nov 2000 01:55:46 EST >i´m a big admirer of the fractal-art and i love your page...i would like to >know: >is there a beginners manual for working with/on fractals; some explanations >, photographs, webpages... i´m also intetested in books. >i´d love to create my own fractals! I suggest downloading Fractint (http://spanky.triumf.ca/www/fractint/fractint/html IIRC) and browsing its online help. _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "David Jones" Subject: Re: (fractint) Fractal Geometry Summer Workshop Date: 03 Nov 2000 22:14:56 -1000 On 3 Nov 00 at 20:02, David Jones wrote: > It is, particularly later on. But the explanation of who > a fractal is and how they are made is very accessible. Oh, dear! Now I have to wonder if fractal sets are complex enough to develop intelligence! #-) Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Morgan L. Owens" Subject: Re: Midgets - Re: (fractint) FOTD 29-10-00 (The Green Goblet Date: 04 Nov 2000 21:47:39 +1300 At 14:13 03/11/2000 -0500, you wrote: >Message text written by INTERNET:fractint@lists.xmission.com > >In "unconnected" Julias >(or "dusts"), the set is - what topologists would call - of measure zero, >which is to say that the points of the set are isolated from each other.< > >Not quite. A dust has a "topological dimension" of zero. A connected Julia >has a topological dimension of one, and a fractal with a decorated interior >has a topological dimension of two. Note that the topological dimension is >always an integer, and is not the quantity usually referred to as >dimension. That usual quantity is the Hausdorff dimension, which is always >greater than the topological dimension, and may be fractional. The measure >of a fractal is in units of length to the power of the Hausdorff dimension. If you're using a Hausdorff measure, that is - Lebesgue measure was what I had in mind. Whether it was appropriate could be debated, but what I was emphasising was that the Julia dusts themselves are never actually seen in any rendering (the connected components of which always being to small to be drawn), only their surroundings. So topological dimension was more relevant than Hausdorff. I shouldn't have said "isolated", it is true - I should have said "disconnected". >The Mandelbrot Set, with a solid-color fill, Just say "the boundary of the Mandelbrot set" :-) >has a topological dimension of 1 and a Hausdorff dimension of 2... >This means that the boundary forms structures that >appear to be filled in with a boundary-only area, but which when magnified >are always seen to be merely a curve. But still appears to fill an entire area even when magnified. Morgan "My rust is flaking" Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Fernando Bresslau" Subject: Re: Midgets - Re: (fractint) FOTD 29-10-00 (The Green Goblet [5]) Date: 04 Nov 2000 11:22:50 -0200 Look at today´s FotD. If you watch the formula, you´ll see that something is done to z before it is used in the formua. that´s the initialization, and if I understood it correctly, it ensures that the midgets found in the fractal aren´t distorted.. Fernando Bresslau frm:MandelbrotMix4 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), *****z=(-a*b*g*h)^j,***** k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l } ----- Original Message ----- Sent: Friday, November 03, 2000 4:38 PM Message text written by INTERNET:fractint@lists.xmission.com >I think that the iteration should be trapped with some starting values< That's an interesting idea. Could you please elaborate on it? Or maybe send a sample Par? Sincerely, Collin Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Barry N. Merenoff" <110144.2274@compuserve.com> Subject: Re: Midgets - Re: (fractint) FOTD 29-10-00 (The Green Date: 04 Nov 2000 09:37:50 -0500 Message text written by INTERNET:fractint@lists.xmission.com >that=B4s the initialization, and if I understood it correctly, it ensures that the midgets found in the fract= al aren=B4t distorted..< That's something I've never understood about MandelMix4. I thought that t= he best initialization is one which makes the derivative of the iteration zero. The initialization in MandelMix4 makes the derivative of the iteration z*k*(a*b*z^b+d*f*z^f) I don't understand the significance of this value. Sincerely, Collin Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "=?ISO-8859-1?B?UHVza+FzIElzdHbhbiBqci4=?=" Subject: Re: (from Barry N. Merenoff) Midgets - Re: (fractint) FOTD 29-10-00 (The Green Goblet [5]) Date: 04 Nov 2000 22:24:06 +0100 >>I think that the iteration should be trapped with some starting values >That's an interesting idea. Could you please elaborate on it? Or maybe send >a sample Par? I mean that with some starting values, the value of the iterated variable should stay 'trapped' below a low value. That appears in the inside part of the Mandelbrot-set, the inside of a connected Julia-set, the zero area points of an unconnected Julia-set. In these cases, |Z| never exceeds 4. That's nothing new. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Jonathan Osuch" Subject: (fractint) Fractint Version 20.1 patch 2 Date: 04 Nov 2000 20:03:22 -0600 All, The executable for patch 2 to version 20.1 is now available as fradev.zip at: http://www.fractint.org/ftp/ Here's what's new: Removed the changes to the savegraphics() and restoregraphics() routines made in patch 1. The changes were causing corrupted images with some resolutions and video adapters. Updated Bret Mulvey's email address. Jonathan Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Jim Muth Subject: (fractint) Classic FOTD 05-11-00 (The next Fractal [6]) Date: 04 Nov 2000 21:45:55 -0500 (EST) Classic FOTD -- November 05, 2000 (Rating 6) Fractal visionaries and enthusiasts: Today's fractal features the next midget in an apparently endless series of midgets, which is reason enough to name the picture "The Next Midget". Yes, I realize that a name such as "The Final Midget" or "Dancing Midget" would be more poetic, but I was not trying to be a poet. I was simply trying to name a fractal. The bluish-gray picture, with its metallic appearance and broad, intricate filaments, rates a 6, which is a little above average. I gave the image just the slightest boost in a graphic program. The graphic boost is included in the parameter file. The expression behind the image, Z^(-14)+2.5Z^(-1.45)+(1/C), is simple enough, and thanks to the wonder-formula MandelbrotMix4, it produces a fractal filled with midgets. BTW, I call the M-Mix4 a wonder-formula because I wonder why it sometimes works and other times fails to draw a fractal with midgets. The MandelbrotMix4 formula has an interesting history, which I may tell in one of these C-FOTD's. But today is not the day. It's Saturday evening and the time is near for my weekly excursion into the world of junk TV. With the parameter file having a render time of 1-1/2 minutes, it's a toss-up whether to run the parameter file or to run to Usenet at: or to the Web at: and download the GIF image from there. The fractal weather today was cloudy with a few tiny drops of rain. The temperature of 67F (19.5C) was un-notable. The cats failed to note it as they frolicked in the yard. There's no philosophy today, but it's coming, so keep in touch. You wouldn't want to miss out on the action when the philosophy breaks. Until next time, take care, and enjoy today's image. Jim Muth jamth@mindspring.com START 20.0 PAR-FORMULA FILE================================ The_Next_Midget { ; time=0:01:29.75 -- SF5 on a P200 reset=2001 type=formula formulafile=critical.frm formulaname=MandelbrotMix4 function=recip center-mag=-1.778683555482173/-0.5422446532818447/23\ 5454.1/1/-49.999 params=1/-14/2.5/-1.45/0/0 float=y maxiter=1200 inside=0 logmap=17 periodicity=10 colors=000RQ_UTaWVdZYe`_gcajedlgfmjhplkrmmshhmeeha`d\ ZY_VTVRPPOKKKHGHCAD86C99AAC9CG8CI7DL7EO6GQ5GU3HW2I_1\ Ja1Jd<4>0PZ0QY0RY<3>0WT0YR0ZQ0ZQ5_RA_RH`RL`RRaRYaRaa\ RgcRleRrgTxjTzkTwoUqrVkuWexW_zYUzZPzZKx`HqcDje9cf5Vh\ 1Ok0Hm09o0Gj3Ke<2>HZRLcI<3>cvegzkkzqgwvepyahz_azWVzU\ OzQHzO9zK2zI0zH8zHKz<2>GuzGzzKzzOxzTuzWqz<3>lczq_zuW\ z<2>IJz<2>W1z_0zV0zQ1z<3>7Cz2Ez0Hz0Jz2HzAEzJDzRAz<2>\ o6z<3>sAzsCzuDz<3>xIzyJzzKzzKz<8>eVzcWz`Yz<2>U`zRazQ\ `z<2>PZzOYzOWzNWzNVzLUzLUz<3>rTz<3>e_za`z_azWdzUez<3\ >HkzDmzAoz7pz5qz9oz<7>aezedzhcz<3>wZzaRzHKz0Ez0Lz1Tz\ <2>8mzAuzCzzJszQkzWczcVzjNzpGzhHzcIzYJzRKzLLzGNz9Oz3\ Pz0PzEYzVdzkkzzrz<2>zNzzKz<2>zGzETzEQzGPzGNzHKzHJzIH\ zIGz<2>POz } frm:MandelbrotMix4 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l } END 20.0 PAR-FORMULA FILE================================== Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Barry N. Merenoff" <110144.2274@compuserve.com> Subject: Re: (from Barry N. Merenoff) Midgets - Re: (fractint) FOTD Date: 05 Nov 2000 04:02:19 -0500 Do you know a procedure for finding the maximum value of |Z| for an arbitrary formula? Sincerely, Collin Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: TEXART4U2@aol.com Subject: Re: (fractint) Beta version of new animation utility for Fractint available Date: 05 Nov 2000 10:51:20 EST Can this utility allow me to convert "color" cycled animations from the real time Fractint into an AVI file? I love color cycling and have been spending my time learning to manipulate 256 color fractals. Let me know. Tom Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Rupert Millard" Subject: Re: (fractint) Re: List of fractal programs by P.N.L. Date: 05 Nov 2000 16:26:14 GMT Paul, >For an exhaustive list of fractal generators, galleries featuring >fractals, and other fractal related information, go to the following: > > http://home.att.net/~Paul.N.Lee/Fractal_Software.html This is *very* helpful, there are lots of "exhaustive" / "definitive" lists of fractal software out there: http://www.geocities.com/arangas/index.html http://www.eclectasy.com/fractovia/fractal_generators/fractals_freeware1.html http://thinks.com/software/fractals.htm & the ones on http://spanky.triumf.ca, http://www.fractalus.com etc. but I've not yet seen one quite so "exhaustive" / "definitive" as yours! Keep up the good work, From, Rupert _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Paul N. Lee" Subject: Re: (fractint) Re: List of fractal programs by P.N.L. Date: 05 Nov 2000 11:56:41 -0600 Rupert Millard wrote: > > Paul, > > >For an exhaustive list of fractal generators, galleries featuring > >fractals, and other fractal related information, go to the following: > > > > http://home.att.net/~Paul.N.Lee/Fractal_Software.html > > This is *very* helpful, Thank you so *much*!! But the above link is not the "exhaustive" list of software, nor does it claim to be. The preceding sentence mentions other areas of fractal concern like galleries, etc., and is also followed by the following two additional links: http://home.att.net/~Paul.N.Lee/Fractal_Links.txt http://home.att.net/~Paul.N.Lee/Fractal_Census.html The three combined URL, will make up the "exhaustive" list of most things related to fractals. > > there are lots of "exhaustive" / "definitive" > lists of fractal software out there: > http://www.eclectasy.com/fractovia/fractal_generators/fractals_freeware1.html > > http://thinks.com/software/fractals.htm > Where do you think the above two originally got their information from?? I gave Juan Luis permission back around July 05, 1999 to use that information for his website. > > Keep up the good work, Thank you again, and I hope to be able to continue doing so. Sincerely, P.N.L. http://www.fractalus.com/cgi-bin/theway?ring=fractals&id=43&go Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Paul N. Lee" Subject: (fractint) Fractals in Multimedia Date: 05 Nov 2000 13:14:23 -0600 The Institute for Mathematics and Its Applications (located at the University of Minnesota, Twin Cities Campus, in Vincent Hall) will be having a "Minisymposium" concerning _Fractals in Multimedia_, scheduled for January 17-19, 2001. Some of the people involved are as follows: Michael Barnsley Steven Demko Ken Musgrave Heinz-Otto Peitgen and about 20 more... Further information may be found at the following: http://www.ima.umn.edu/multimedia/winter/ms.html Sincerely, P.N.L. http://www.fractalus.com/cgi-bin/theway?ring=fractals&id=43&go Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Jim Muth Subject: (fractint) Classic FOTD 06-11-00 (Abstraction 01 [7]) Date: 06 Nov 2000 00:12:53 -0500 (EST) Classic FOTD -- November 06, 2000 (Rating 7) Fractal visionaries and enthusiasts: I appear to be on a roll. One above-average fractal after another keeps turning up. In keeping with the trend, today's image, which for lack of a better idea has been named "Abstraction 01", rates an above-average 7. The formula of today's scene is Z^1.03-Z^(-1.5)+(1/C). The calculation was once again done by the mysterious MandelbrotMix4 formula, which appears strange but produces midgets by the thousands. The parameter file finishes in 12-1/2 minutes on a reasonably fast Pentium. The image file downloads much faster from: alt.binaries.pictures.fractals or from: The fractal weather today was sunny but with puffy white clouds, and a temperature of 57F (14C), which was barely warm enough for the fractal cats. I wish my philosophizing were doing as well as my fractal searching. Once again I failed to find the inspiration to write. But I'll try again tomorrow. Until then, take care, and what did we do with our idle time before fractals existed? Jim Muth jamth@mindspring.com START 20.0 PAR-FORMULA FILE================================ Abstraction_01 { ; time=0:12:35.44 -- SF5 on a P200 reset=2001 type=formula formulafile=critical.frm formulaname=MandelbrotMix4 function=recip passes=1 center-mag=+0.24270803302426930/+4.39028735472479500\ /265776.6/1/22.5 params=-1/-1.5/1/1.03/0/0 float=y maxiter=1800 inside=0 logmap=213 periodicity=10 colors=000S4zT1z<2>Y0zb0zh0zX0z`0zS0zQ0wN0tM0qJ0nH0k\ E0hD0eA0b80_50X40T10Q<2>00H00K11N<7>PQhSTkVXnY_q`ctc\ fufixilz<2>ruzqozokzoezn`znVzlQzkKzkGziAzi5zkEzlNznX\ zoexqnwut0qq0ln1hk2ch4_e4<2>MY8HVADSA<2>0JE0EB0HE<2>\ 0PJ0SK0TM0XN0_P0`Q<3>0kX0nY0o_<3>0ze<3>0zk0ze0x_2tT7\ oP<3>PY2T_4X`5`b7cb7fc8keAneAqfBuhDxiEziEzkGzlHzlHzo\ EtqBkrAbu7Tw4Kx2Bz02z00z00z00z0<3>1o01l02h0<3>8X0AT0\ 0b0EQ0MG0T40`00<2>w00z20z50<2>zE2wH5oK7iNAkQBkTElXGl\ _JnbKneNohPokQkfT<4>XPhTMkQHn<3>E4z70zB1zG5xJAuNErSJ\ oVNk_ShcXef`bke_oiVrnSwrPzwMzzJwwK<2>`iKeXJiKKn8HoBK\ oEMoGPoJQoKSoNVoQXoS_oV`oXbo_eobfociofkohlkikfkkclk_\ nkXoiSqiNriKtiGuhDwh8xh5zh8zfAzeDzcEzbHz`Jz_MzYNzYPz\ XSzVTzTXzSYzQ`zPbzNczNfzMhzKkzJlzHozGqzEwzGrzEnzDPzz\ Qzz } frm:MandelbrotMix4 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l } END 20.0 PAR-FORMULA FILE================================== Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Thore Berntsen Subject: Re: (fractint) Beta version of new animation utility for Fractint available Date: 06 Nov 2000 09:09:16 +0100 (CET) --19315031.973498156241.JavaMail.webmail1@wm-java3.fg.online.no Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit > > Can this utility allow me to convert "color" cycled animations from the real > time Fractint into an AVI file? I love color cycling and have been spending > my time learning to manipulate 256 color fractals. > > Let me know. Tom > > -------------------------------------------------------------- > Thanks for using Fractint, The Fractals and Fractint Discussion List > Post Message: fractint@lists.xmission.com > Get Commands: majordomo@lists.xmission.com "help" > Administrator: twegner@fractint.org > Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" > > > Yes it animates colors. --19315031.973498156241.JavaMail.webmail1@wm-java3.fg.online.no-- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Multiple Bogeys" Subject: (fractint) Obscure case where diffusion gives poor estimates. Date: 06 Nov 2000 04:13:59 EST deep_1_54 { ; Version 2001 Patchlevel 1 reset=2001 type=mandel passes=d center-mag=-0.74526321750669670/+0.11304138430272110/1.263809e+009/0.999\ 7 params=0/0 float=y maxiter=1048576 inside=0 outside=0 logmap=1122 distest=-1/71/1024/768 colors=zzz000<56>EEEEEEEEE<2>FFFFFFIII<7>fffjjjmmm<3>zzz<10>aaaZZZXXX<2>\ QQQNNNNNN<157>zzz video=AF7 savename=frmig_54 } Diffusion on this one initially estimates 8 hours on a PII-400, but this climbs to about 12 by the time it finishes. _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Morgan L. Owens" Subject: Re: (from Barry N. Merenoff) Midgets - Re: (fractint) FOTD Date: 06 Nov 2000 19:42:46 +1300 At 04:02 05/11/2000 -0500, Collin wrote: >Do you know a procedure for finding the maximum value of |Z| for an >arbitrary formula? I strongly suspect that there no such procedure exists - that no matter what procedure one may come up with, there will be formulae for which it fails to give a (correct!) finite upper bound for |Z|. Morgan L. Owens "I have discovered a truly marvellous demonstration of this conjecture which this .sig is too short to contain." Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Jim Muth Subject: (fractint) C-FOTD 07-11-00 (Pi Fantasy [6]) Date: 06 Nov 2000 21:11:59 -0500 (EST) Classic FOTD -- November 07, 2000 (Rating 6) Fractal visionaries and enthusiasts: Today's fractal is a slice of pie, or perhaps I should say pi. The expression that was iterated to draw the image is Z^(pi)+C. To add a bit of interest, I calculated the expression with the MandelbrotBC formula, which draws the remote parts of the infinite spiral of fractals with fractional exponents of Z. To keep with the 3.14159 theme, I also set the second parameter to pi. The parent fractal looks a lot like the Z^3+C Mandeloid fractal, though it is crooked, and its west valley is split. To see this parent fractal, reset the logmap to 1 and back out of today's image, which is located in the area where the west valley broadens and splits. Perhaps the most unusual feature of the image is the tattered appearance of the features surrounding the midget, and the near total lack of symmetry. The midget itself, which closely resembles the cubic Mandeloid, is surrounded by many other midgets, none of them explored. The attached parameter file takes 9-1/2 minutes to render on a 200mhz Pentium machine. The download of the image from usenet is far faster, that is if the image file makes it to your news server. The newsgroup in question is: The image also will soon be posted to Paul Lee's web site at: The fractal weather today was perfect, with blue skies un-marred by the slightest trace of cloudiness, and a temperature of 56F (13C), which so thrilled the fractal cats that they spent most of the afternoon sleeping in the sun in their chairs on the porch. The philosophy went nowhere today, but it's time to shut down Fractal Central and go somewhere myself. Until next time, take care, and be kind to your fractals. Jim Muth jamth@mindspring.com START 20.0 PAR-FORMULA FILE================================ Pi_Fantasy { ; time=0:09:34.68 -- SF5 on a P200 reset=2001 type=formula formulafile=branchct.frm formulaname=MandelbrotBC passes=1 center-mag=-0.3953\ 8899237559290/-0.08378373837276828/2244856 params=3.14159265358979/0/3.14159265358979/0 float=y maxiter=3000 inside=0 logmap=169 periodicity=10 colors=000IAIIAI<3>IGIJHIKII<3>PIIQIIRIITIIRII<3>QII\ PIIPIIQIIQIIPHINCIK7CI03H07<3>H9HHCJGEN<3>GOWGQZETa<\ 3>EakEcmGalGakG`jG`h<3>GZeGYdGYdGWcGWa<3>GUZHTYHTWHR\ W<2>HQTHPTHPR<2>HNOHNOHLNHLLHKKGJJ<8>JLKKLKKLKKNKLNK\ LNKLNKNNK<8>QPKQPKQPK<2>RQKRQKTQK<5>VRKVRKVRKWRKWTKW\ TKYTK<7>_UK`UK`VK<2>aVKaVK`WGaVIaVKcVLcUO<2>dTTeTVeT\ YfRZfR`gRagQdgQehQghPjjPkjPmkOokOqjPr<2>lNvlNwmLxmLy\ yKzoKz<5>rHzrHzrHzsGzsGzuEz<2>vDzvDzuGzuHzsJzsKzrLzr\ OzqPzqQzpTzpUzoWzoYymZv<3>kegkfdjhejjghkjhmlgoogpphq\ mhqljrkjrjjshksgkuf<3>mvamw`mw_oxZ<3>pzUqzTqzR<3>szN\ szLszKuzJuzIwzIuzHszHqzHpzHozHlzHkzHhzH<3>czGazG_zGZ\ zGazf<4>_zd } frm:MandelbrotBC = { ; Z = Z^E + C e=p1 p=real(p2)+PI q=2*PI*trunc(p/(2*PI)) r=real(p2)-q Z=C=Pixel: Z=log(Z) IF(imag(Z)>r) Z=Z+flip(2*PI) ENDIF Z=exp(e*(Z+flip(q)))+C |Z|<100 } END 20.0 PAR-FORMULA FILE================================== Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Andrew Coppin" Subject: (fractint) FOTD Date: 07 Nov 2000 13:29:25 GMT Hi Jim. I just wanted to say that "Abstraction 01" and "Excited Fractal" are both really excellent! Keep it up! Andrew Coppin "All elliptic equations are really modular forms." _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Jim Muth Subject: (fractint) C-FOTD 08-11-00 (Three Trees [5]) Date: 07 Nov 2000 21:56:52 -0500 (EST) Classic FOTD -- November 08, 2000 (Rating 5) Fractal visionaries and enthusiasts: Today's fractal has no quadratic midgets. I've been producing almost nothing but such midgets lately, and it might be time for a midget break. Oh, there are several midgets in today's picture -- one prominent one in the lower left quadrant, and others scattered throughout the scene, but they are not the usual quadratic midgets. Instead of midgets, today's image features trees -- three trees in fact, which is the name I gave to the picture. I rated the picture a 5, mostly because I was distracted by watching the election returns, and gave too little effort to nursing my fractal. Yesterday's image featured the number known as the Greek letter pi. Today's fractal features the number known as the golden ratio, which has a value of 1.618033989..., and which by a strange coincidence happens to be the square root of 5, plus 1, divided by 2. To make the fractal doubly golden, I also entered -1.618033989 into the MandelbrotBC formula as the second parameter. The parent fractal is a curious thing, an obvious Mandeloid standing on its head, with much chaos and many filaments around its main bay and rudimentary buds. The trees of today's image are located on the WSW shore of the bay, just below the second discontinuity. This parent fractal is filled with interesting nooks and crannies, all of which deserve a more thorough examination. Perhaps I'll return to it for tomorrow's C-FOTD. A benefit of an image with a magnitude as low as today's is that it is fast. The parameter file renders in only 26 seconds on a Pentium-200. On one of those 800mhz machines, it will finish in 10 seconds or so. But if running the parameter file is too much of a hassle, the GIF image file has been posted to the Usenet binary newsgroup: and before long it will also be available on Paul Lee's web site at the URL: The fractal weather today was surprisingly mild. The temperature of 64F (18C) and partly sunny skies lured the cats outdoors, where they spent the afternoon lounging on the porch, watching the insects hovering around the still-blooming marigolds. For all those waiting with bated breath for my next round of fractal philosophy, there is nothing but disappointment. I'm sorry, but too much work combined with too much distraction left nothing to act as inspiration. So the philosophy will once again be delayed, but eventually it will appear -- it always has in the past. For now however, I'm settling down to watch the election returns to see how my guy makes out. Until tomorrow, when depending on the outcome, I'll be either pleased or disgruntled, take care, and may your wisest wishes come true. Jim Muth jamth@mindspring.com START 20.0 PAR-FORMULA FILE================================ Three_Trees { ; time=0:00:26.42 -- SF5 on a P200 reset=2001 type=formula formulafile=branchct.frm formulaname=MandelbrotBC passes=t center-mag=0.163588/-1.36873/6.622925/1/-142.5 params=1.618034/0/-1.618034/0 float=y maxiter=6000 inside=0 logmap=4 periodicity=10 colors=000F9gFIgFAjF3mO0pX7mcIllSisagzjfxVVuFLr0A70A\ A79CD9FJ7GP77OMDGo0M`IFsVJLILV4LdQp0Ml7IgDDcL9`Q4XX0\ Sc0OiXQzJOx6MszzOrySisV`m_SgaJadAXi1QlIOr9Mp0Lo0vfD0\ T7zz4zy3zx1sv<3>0QpzxmjmoTcoAToGLy4LssJzjLzcLzVLzOLz\ GLx7Lu0LrzXurVsiTs`SrSQrJPpAOp1MozzzLg_FcaA_d6Xg1Sj0\ Omz0rz0pp0pd1pS6oGCo4GoXGgJIj6Jm9zJ0d_joYJ_f__zLTz6P\ u0G00JL_TYSS`MQcGPfAOg4Mj0LmMjzFcy7Yv0Qrm0zL7v04009A\ <2>0Id03z06z07z0Ay0Cx0Fu0Gs0JpyCLaFVFIdz7`yAclCfYFgL\ Gj6JmMI0CJA1LVvvzPcul0zL3zQzxMzvIxuDrs9js4cr0Yp0Qo9m\ 06i03d91`I0XQ0S_0Og4Fx1Gv0Iu0Is0Jr0LpVvzIiz4Xx0Px0Ou\ 0Ms0Mr0LpOi4JdAFaGC_M7XS3TY0Qc0Oi60v04r0zm0zP0uX0ia0\ XiVzVu7iiAj_ClPFlDGm3Jog0XQ4c9DiPmdLifGfgCai9_j4Vl0S\ m0OoL_LFXQATV6S`1Pd0Mj00V06a0DiazVXzYQx`LrcFjd9cg3Yj\ 0Qm0zo0so0go0XofL0XL7MLJCLT1LdIm0Cg07aD1XQ0QcT9iiFzS\ IzAJupP0cf0Ta0LYCATP1PalfF`aMPYTrJzuJz } frm:MandelbrotBC = { ; Z = Z^E + C e=p1 p=real(p2)+PI q=2*PI*trunc(p/(2*PI)) r=real(p2)-q Z=C=Pixel: Z=log(Z) IF(imag(Z)>r) Z=Z+flip(2*PI) ENDIF Z=exp(e*(Z+flip(q)))+C |Z|<100 } END 20.0 PAR-FORMULA FILE================================== Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "=?iso-8859-1?B?UHVza+FzIElzdHbhbiBqci4=?=" Subject: (fractint) Re: Obscure case where diffusion gives poor estimates. Date: 08 Nov 2000 18:16:11 +0100 >Diffusion on this one initially estimates 8 hours on a PII-400, but this >climbs to about 12 by the time it finishes. What is the mode assigned to AF7 in your CFG file? I had some ideas. (So far I remember, the original CFG file had no mode assigned to ALT+F7, but anyway, I don't have it :( ) Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "=?iso-8859-1?B?UHVza+FzIElzdHbhbiBqci4=?=" Subject: Value of |Z| (Re: (from Barry N. Merenoff) Midgets - Re: (fractint) FOTD 29-10-00 (The Green Goblet [5])) Date: 08 Nov 2000 18:16:16 +0100 Try the 'inside=zmag' mode. It won't show the exact value, but you'll see the changes depending on the starting values if the area in question is 'inside'. If it isn't, try making it 'inside' by setting the max. iteration count to a low value, or modify the formula so that it has no bailout (so no 'outside' parts.) Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Jim Muth Subject: (fractint) C-FOTD 09-11-00 (Sunflower [4]) Date: 09 Nov 2000 00:01:01 -0500 (EST) Classic FOTD -- November 09, 2000 (Rating 4) Fractal visionaries and enthusiasts: Today was an exceptionally busy one here at Fractal Central, leaving almost no time for fun with fractals. But I did find another midget. This midget is surrounded by what appears to be the petals of a sunflower, so that's the name I gave it. The expression -10Z^(-1.3)-Z^(-13)+(1/C) was calculated by the MandelbrotMix4 formula to create the image, which is not at all exceptional, rating a somewhat below average 4 on my scale of fractal worthiness. The parameter file's 9-1/2 minute render time is slow enough to make a download of the image file from: alt.binaries.pictures.fractals or in a few hours from: the more efficient way to go. The fractal weather started deteriorating today, with lots of clouds and a temperature of 64F (18C). Recognizing less-than- perfect conditions, the fractal cats spent only a limited time outdoors. As for philosophy, there is none, but I'll return in 24 hours with a hopefully higher-rated fractal and more to tell about it. Until then, take care, and may the better man win. Jim Muth jamth@mindspring.com START 20.0 PAR-FORMULA FILE================================ Sunflower { ; time=0:09:37.21 -- SF5 on a P200 reset=2001 type=formula formulafile=critical.frm formulaname=MandelbrotMix4 function=recip passes=1 center-mag=+2.72767006651009100/+0.39885761742574140\ /1.266804e+008/1/-105 params=10/-1.3/1/-13/-2/100 float=y maxiter=2400 inside=0 logmap=144 periodicity=9 colors=000bQR<9>hbihckidm<3>kit<13>RnnQnnOnm<3>Jol<3\ >FgaEeZDcXCaUB_R<3>7PH6ME5JB5I97L88M8AP8BQ8CT8EU7FX7\ HY7I`7<5>Qh6Sj5Tk5<2>Xp5Zq4_t4`v4by4cz4dz4ez6ey8<3>f\ nEfkFfjH<13>iMaiKcjJd<3>jCj<3>XQmTUnQXoN_o<25>OHDOGC\ OFA<3>OD5<2>D2t<17>RJxSKxSLy<3>VOy<6>IcWGeSEgN<3>7o7\ <3>VVV`P`fKf<2>x5w<3>3x_<23>BpPBpPBpO<2>CoNCoNFpO<3>\ NrOPsORtOTtOVuO<8>ivIkvHmvG<3>svE<2>tnJ } frm:MandelbrotMix4 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l } END 20.0 PAR-FORMULA FILE================================== Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Jim Muth Subject: (fractint) C-FOTD 10-11-00 (Distracted Fractal [3]) Date: 09 Nov 2000 20:29:36 -0500 (EST) Classic FOTD -- November 10, 2000 (Rating 3) Fractal visionaries and enthusiasts: Today's fractal rates only a lowly 3. It earned this lowly rating because I was preoccupied while searching for the FOTD by the election chaos here in the U.S. and couldn't concentrate on the business of finding fractals. In the eyes of the world, this election situation must make the U.S. look like an illiterate nation that can't even tally up its own votes. (Which may be true.) Since the confusion distracted me from more productive things, I named the picture "Distracted Fractal" to explain its paucity. I'm not going to discuss the fractal, which speaks for itself. The best way to hear or rather see it speak is to download the GIF image file from the Usenet binary group: or from the web site: The fractal weather today was cloudy with spitting rain that never amounted to anything. The temperature of 63F (17C), was quite mild for mid-autumn. The fractal cats, after observing the morning from the cover of the porch, decided that the outdoors was too wet, and passed the afternoon sleeping. Now it's time to shut down the fractal shoppe and call it an evening. Instead of overloading myself with election hype, I'm going to settle down and watch a great old "creature feature" style movie or two. Until next time, take care, and see you in 24 hours. Jim Muth jamth@mindspring.com START 20.0 PAR-FORMULA FILE================================ Distracted_Fractal { ; time=0:10:34.06 -- SF5 on a P200 reset=2000 type=formula formulafile=critical.frm formulaname=MandelbrotMix4 function=recip passes=1 center-mag=+1.907196013519638/-0.7756187527715576/1.\ 567757e+007/1/-102.499 params=10/-1.3/1/-13/-2/100 float=y maxiter=1400 inside=0 logmap=200 periodicity=9 colors=0000Qd0Rb0Rb0Rb0Ta0Ta0Ta0Rb0Qb0Ob2Nb6NbBLdEJd\ IIdLGdOGdTEfXDf_Bfb9ff9fd8bb8ab8Ya6X_6V_6RY4QY4OX4LV\ 2JV2GT2ER1DR19Q18G0BL08Q16V84_D1dJ0iQ0qR0lV0gX2b_9Ya\ GVdN<2>GkfBnl8pq0z4Dz8iz9zz9zzBzxBzsBznDziDzdDzYBz_D\ z_Dz_Ez_EzaGzaGzaGzaI<2>zbJzbJzbLzdLzdNzdNzdNzfOzfOz\ fQzfQzfQzdNzbLzaJz_IzYEzXD<3>zQ4zO2zN1<3>zG0zB0zE0zG\ 1xIB<3>VOn<3>nDas0az0Q<4>z0Qz1Q<3>zEQzIQzLQxOQwRQwVQ\ tYQsaQsdQqgQtlOqkQpkQ<2>ikQgkQfiR<2>_iRYiRXiRVgTTgTQ\ gT<2>LgTJgTIiVIkVIkXGlXGnYGnYGpYEp_Eq_EsaDsaDtaDwbDw\ bBxdBxdBzd9zf<2>9zg8zg8zi8zi6zk6zk6zk6zl4zl4zn4zn4zl\ 4zn4zn4zp4zp4zq4zq4zs4zs4zs4xt4wt4tw4qw4px4nx4lx4kz<\ 2>4dz4bz4az4_z4Yz4Xz4Tz<3>4Nz4Lz0Iz<4>BJzDJzGJzIJzJJ\ zNJzOJz<3>XJz_JzaJzbJzJEzdJzzLzxNzxNzxOzxOzxQzxQzxRz\ xRzxTzxTz0Oz0Qz0Qz } frm:MandelbrotMix4 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l } END 20.0 PAR-FORMULA FILE================================== Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: htes htes Subject: (fractint) How to run Fractint in the Background? Date: 09 Nov 2000 20:10:43 -0800 (PST) Hi, I was wondering if it is possible to run the DOS version 20.0 of Fractint in a box in windows 95, so that I can do other things while fractals are generating. My question pertains specifically to running a batch file to generate a sequence of images. i.e. start.bat ------- fractint @parfile1 fractint @parfile2 fractint @parfile3 fractint @parfile4 How can I minimize or restore the Fractint window such that other things in Windows 95 can be done while Fractint is running? If I have a 800 frame animation, I don't want my computer tied up for that enitre time, I should be able to do other things on my computer while it is running. Any tips? thanks _______________________________________________________ Say Bye to Slow Internet! http://www.home.com/xinbox/signup.html Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "David Jones" Subject: Re: (fractint) How to run Fractint in the Background? Date: 09 Nov 2000 18:30:31 -1000 Sure you can (I've done it), but don't expect to get much else done with W95. And be very careful about your display drivers - W95 doesn't always play nice with DOS graphics programs. On 9 Nov 00 at 20:10, htes htes wrote: > Hi, I was wondering if it is possible to run the DOS > version 20.0 of Fractint in a box in windows 95, so that > I can do other things while fractals are generating. > > My question pertains specifically to running a batch > file to generate a sequence of images. i.e. > > start.bat ------- > > fractint @parfile1 > fractint @parfile2 > fractint @parfile3 > fractint @parfile4 > > How can I minimize or restore the Fractint window such > that other things in Windows 95 can be done while > Fractint is running? > > If I have a 800 frame animation, I don't want my > computer tied up for that enitre time, I should be able > to do other things on my computer while it is running. > > Any tips? Run it under OS/2. Works just fine here! Another blast of bits from David http://home.hawaii.rr.com/aliasjj/ http://www.hawastsoc.org/ For the best Hawaii & Pacific Basin surf forecast: http://www.surfreporthawaii.com Random Thought for this Nanosecond Unused genius is identical to foolishness. (D.Jones) Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Scott Boyd Subject: Re: (fractint) How to run Fractint in the Background? Date: 10 Nov 2000 00:21:22 -0600 On Thursday 09 November 2000 22:30, you wrote: > > How can I minimize or restore the Fractint window such > > that other things in Windows 95 can be done while > > Fractint is running? > > > > If I have a 800 frame animation, I don't want my > > computer tied up for that enitre time, I should be able > > to do other things on my computer while it is running. > > > > Any tips? > > Run it under OS/2. Works just fine here! > Or run Xfractint with a true multi-tasking OS like Linux. Xfractint behaves well with Linux also! Scott Boyd -- sdboyd56@swbell.net http://home.swbell.net/sdboyd56/ A computer without a Microsoft operating system is like a dog without bricks tied to it's head. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "David Jones" Subject: Re: (fractint) How to run Fractint in the Background? Date: 09 Nov 2000 21:35:51 -1000 On 10 Nov 00 at 0:21, Scott Boyd wrote: > On Thursday 09 November 2000 22:30, you wrote: > > > > How can I minimize or restore the Fractint window such > > > that other things in Windows 95 can be done while > > > Fractint is running? > > > > > > If I have a 800 frame animation, I don't want my > > > computer tied up for that enitre time, I should be able > > > to do other things on my computer while it is running. > > > > > > Any tips? > > > > Run it under OS/2. Works just fine here! > > > Or run Xfractint with a true multi-tasking OS like > Linux. Xfractint behaves well with Linux also! My other box is running Linux right now (in fact, I'm looking at consolidating my two boxes into one triple-booting thing - W9x, OS/2, Linux) so I can put in a home file and print server). I've never installed any X-apps on the system except those that came with it. Any pointers? Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: BeyerTh@t-online.de (Thomas Beyer) Subject: Re: (fractint) How to run Fractint in the Background? Date: 10 Nov 2000 12:48:34 +0100 htes htes schrieb: > > Hi, I was wondering if it is possible to run the DOS version 20.0 of > Fractint in a box in windows 95, so that I can do other things while > fractals are generating. > In Windows there are always problems with fractint's graphic-routines. Using Disk-Video, however, I never had a problem running fractint in the background in a DOS-box. Win95 is at least as stable, that it won't be clogged by a DOS-applicatian (as it might have been with Win 3.x). Of course you must accept, that you are using CPU-power, so playing computer-games or downloding huge files in the foreground is not recomended. Most other things (even internet-access) are generally possible. (I'm running fractint, while sending this message BTW, I hope it won't become a mess :-) Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Multiple Bogeys" Subject: Re: (fractint) Re: Obscure case where diffusion gives poor estimates. Date: 10 Nov 2000 14:24:04 EST >What is the mode assigned to AF7 in your CFG file? Disk video, 1024x768x256. _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Multiple Bogeys" Subject: Re: (fractint) How to run Fractint in the Background? Date: 10 Nov 2000 14:32:26 EST >Hi, I was wondering if it is possible to run the DOS version 20.0 of >Fractint in a box in windows 95, so that I can do other things while >fractals are generating. > >My question pertains specifically to running a batch file to generate a >sequence of images. i.e. > >start.bat ------- > >fractint @parfile1 >fractint @parfile2 >fractint @parfile3 >fractint @parfile4 > >How can I minimize or restore the Fractint window such that other things in >Windows 95 can be done while Fractint is running? > >If I have a 800 frame animation, I don't want my computer tied up for that >enitre time, I should be able to do other things on my computer while it is >running. > >Any tips? >thanks Sure. Run it in disk-video mode, in a DOS box (return from mullscreen when disk-video is set), and push in the "run in background" button on the toolbar of the DOS box. As for the batch file, design it like the makemig.bat output for D&C images: Fractint batch=yes overwrite=yes @dem.par/deep_1_63 Fractint batch=yes overwrite=yes @dem.par/deep_1_64 ... The par entries should set a disk video mode (a good reason to assign 1024x768x256 disk-video to a key in fractint.cfg -- I use AF7) and a savename. For better crash recovery, use savetime=60 or so in sstools.ini. _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Multiple Bogeys" Subject: Re: (fractint) How to run Fractint in the Background? Date: 10 Nov 2000 14:37:03 EST >Of course you must accept, that you are using CPU-power, so playing >computer-games or downloding huge files in the foreground is not >recomended. Most other things (even internet-access) are generally >possible. Downloading works fine actually. So does Winquake, if you set the priority above normal. Downloading is not CPU-intensive -- it is network-intensive. Fractint, OTOH, is CPU-intensive but not network-intensive. Running a fractal while downloading a batch of mp3z from Napster is a common state for my machine these days -- the two tasks make the most of available CPU time and bandwidth, simultaneously. (I also run a bottom-feeder for GIMPS...) _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "David Jones" Subject: Re: (fractint) How to run Fractint in the Background? Date: 10 Nov 2000 10:34:43 -1000 On 10 Nov 00 at 12:48, Thomas Beyer wrote: > Using Disk-Video, however, I never had a problem running > fractint in the background in a DOS-box. Win95 is at > least as stable, that it won't be clogged by a > DOS-applicatian (as it might have been with Win 3.x). > > Of course you must accept, that you are using CPU-power, > so playing computer-games or downloding huge files in > the foreground is not recomended. Most other things > (even internet-access) are generally possible. Well, when I used to try it (running in disk video mode) on this system, everything else in W95 - mouse movements, appearance of drop-down menus, etc - became jerky and slow. Wasn't doing any games or downloads, although I was most often trying to work on a book. In fact, couldn't do any kind of Internet activity (we were using a dialup connection at the time, and W95 just doesn't seem to do well with real-time communications running). On the same box under OS/2, I didn't have any such problems. I still don't have any such problems. Also W95 and Fractint would regularly fight over the display adaptor, freezing the system. I've never encountered that under OS/2. Anyway, I'm going to check out XFractint, my Linus box has a faster processor in it, anyway! 8-) Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: htes htes Subject: Re: (fractint) How to run Fractint in the Background? Date: 10 Nov 2000 15:35:44 -0800 (PST) hey thanks. But I still have problems when I run the batch file everytime the batch file runs fractint with a new paramenter specified, it changes to full-screen, and then goes back to a window in disk video mode. How do I set it up so that, when you type in fractint @blah.par/blah it stays in a window all the time? Right now, factint goes to full screen then immediatly switchs back to a window. I need it to be running in a window all the time. More specifially, I need to be able to run fractint in a window, exit from fractint, then start up fractint again while still keeping it in a window the whole time. Just setting it to disk video mode doesn't prevent it from switching from full screen to a window everytime fractint is started. Thanks. _______________________________________________________ Tired of slow Internet? Get @Home Broadband Internet http://www.home.com/xinbox/signup.html Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Multiple Bogeys" Subject: Re: (fractint) How to run Fractint in the Background? Date: 10 Nov 2000 18:59:01 EST >hey thanks. But I still have problems when I run the batch file > >everytime the batch file runs fractint with a new paramenter specified, it >changes to full-screen, and then goes back to a window in disk video mode. I've noticed this too. Don't know why it does this -- IMO it's a bug, Fractint must be changing text modes or something unnecessarily. There is a workaround -- if the dos box doesn't have the focus, it doesn't happen! _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: htes htes Subject: Re: (fractint) How to run Fractint in the Background? Date: 10 Nov 2000 17:26:44 -0800 (PST) > >hey thanks. But I still have problems when I run the batch file > > > >everytime the batch file runs fractint with a new paramenter specified, it > >changes to full-screen, and then goes back to a window in disk video mode. > > I've noticed this too. Don't know why it does this -- IMO it's a bug, > Fractint must be changing text modes or something unnecessarily. There is a > workaround -- if the dos box doesn't have the focus, it doesn't happen! > > Awesome man, thanks. Now, its off to work on my 800-frame zoom to (-2,0) at magnification level 1.502*10^256!! :) _______________________________________________________ Tired of slow Internet? Get @Home Broadband Internet http://www.home.com/xinbox/signup.html Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Jim Muth Subject: (fractint) C-FOTD 11-11-00 (Fractal Stickers [4]) Date: 10 Nov 2000 23:58:46 -0500 (EST) Classic FOTD -- November 11, 2000 (Rating 4) Fractal visionaries and enthusiasts: What does the whimsical expression 1.3Z^(-10.6)+6.7Z^(-1.7)+(1/C) do when iterated? Why it creates a fractal, a fractal with midgets. And today's picture illustrates one of these midgets. I named the picture "Fractal Stickers" because the sharp filaments surrounding the midget remind me of the burrs that sometimes get stuck on the fractal cats when they wander too far afield. After careful consideration, I rated the image a 4, which is a reversal of the steady decline of the past several days, but still below average. The parameter file takes about 3 minutes to set up and 4-3/4 minutes to run. The GIF image file takes about 2 minutes to access and 1/2 minute to download. The image file may be found at: and at: The fractal weather today was partly cloudy and blustery, with a temperature of 63F (17C). The temperature was mild enough for the fractal cats, but the wind was a bit too high for them to be comfortable outdoors, the thrashing branches keeping them constantly on alert. I'm exhausted after another day of high anxiety, so I'm going to settle down to watch another junky movie. I'll return in 24 hours or so, with another fractal. Until then, take care. Jim Muth jamth@mindspring.com START 20.0 PAR-FORMULA FILE================================ Fractal_Stickers { ; time=0:04:44.46 -- SF5 on a P200 reset=2001 type=formula formulafile=critical.frm formulaname=MandelbrotMix4 function=recip passes=1 center-mag=+0.2247777530333031/+0.4283983728794734/3\ .302373e+009/1/139.999 params=1.3/-10.6/6.7/-1.7/0/0 float=y maxiter=1200 inside=0 logmap=80 periodicity=9 colors=00022V22V<3>22P22O22N22L22K22J<2>226222220<2>\ 22723C35F05H19F3CD6HA9H9CK6FL5HP2<2>PY0PZ0R`0Xb0`e0d\ h0ik0ml0ro0zr0zt0zv0<3>zw0zw0zw1zw3zs5fl7db9bXA`bDYb\ FViHSiJPwL<2>HwRFwUCwVCvVAwXAwXAyYAyYAzZAzZAz`<3>9zb\ 9zb9zd<3>9zeCzfDzhGyhHviKsiLpkOmkPklRilUfmVdoYaoZZpa\ XpbUreRrfOshNsfOrePrdRrdSrbUraVr`Xr`XrZYrYZrY`rXarVb\ rUdrUdrSerRfrPhr<2>NlrJmtLlsNlrOlpRloSlmUllXlkYliZlh\ alf<3>hkaik`lkZmkYokXrkVskUviVtkUtkStkRtlRtlPtlOtmNt\ mNsmLsmKsoJsoJsoHspGspFspFrpDrrCrrArrA<2>rs6yz0tv3rt\ 6mt9ktCftGdtJ`tL<3>OtYKt`Htb<2>6tl3to1trCtsLts<3>yts\ wrtvivtbwt`y<2>ptzozzozzfziZzOSz2SzCSzKSzUSzaSzkSzsS\ zzSzzVzzYzoZzdazUbzJez7fz0lz9pzLtzX<4>szfszhszkszlsz\ oszpszssztfzk<2>7zN2zX0ze0zo0zy<2>0zz0zz2zz<2>Azz<4>\ azz0z0 } frm:MandelbrotMix4 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l } END 20.0 PAR-FORMULA FILE================================== Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "Morgan L. Owens" Subject: Re: (fractint) How to run Fractint in the Background? Date: 11 Nov 2000 17:58:26 +1300 At 18:59 10/11/2000 -0500, Multiple Bogeys replied to htes htes by saying: >>hey thanks. But I still have problems when I run the batch file >> >>everytime the batch file runs fractint with a new paramenter specified, it >>changes to full-screen, and then goes back to a window in disk video mode. > >I've noticed this too. Don't know why it does this -- IMO it's a bug, >Fractint must be changing text modes or something unnecessarily. There is >a workaround -- if the dos box doesn't have the focus, it doesn't happen! What you want to fix are the DOS box settings that Windows uses when running Fractint. Right-click Fractint.exe's icon and choose properties. The "Screen" tag describes how Windows displays the DOS box (since these days DOS runs in Windows instead of the other way around). You currently have it being displayed in a window instead of full-screen. Change that and it won't do that jumping back and forth to a window any more. That's the workaround, the permanent solution (work in progress) is to rewrite Fractint's video code to avoid all the low-level speedups that assume that Fractint is the only program using the video card. Once upon a time (like six years ago), this would have been the case, but not now (since, when run in a DOS box, Fractint doesn't really have access to the video card, only a Windows-supplied emulation of one). If you're running in batch mode, and you want to keep Windows running in the meantime, you could instead try minimising the DOS box window. If you're not doing anything else at the time, you might want to consider shutting down Windows, give DOS the processor, and then Fractint's assumptions about where it's running would be correct. Further detail available from the Fractint home page at http://spanky.triumf.ca/www/fractint/fracwin95.html Morgan L. Owens "You want the image in a window? Why waste all that real estate on chrome?" Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: "=?windows-1250?B?UHVza+FzIElzdHbhbiBqci4=?=" Subject: Re: (fractint) Re: Obscure case where diffusion gives poor estimates. Date: 11 Nov 2000 18:25:15 +0100 >>What is the mode assigned to AF7 in your CFG file? > >Disk video, 1024x768x256. I have an idea what's going on. I saw that in video modes where drawing the large boxes that diffusion uses is _lot_ slower than drawing single pixels - probably the box drawing can't be optimized - that diffusion gives extremely long times in the estimation, like 10 minutes at first then it finishes in 4 seconds. First, it could be that drawing the boxes in that disk-video mode is easier than drawing single pixels or at least the overhead of the box drawing is less than expected (maybe it needs less math with pointers or less buffer switches? I don't know how that works.) Another possibility is that the areas of the image where diffusion hits first are faster than others encountered later. Try setting the fill color to 0, in that case diffusion won't draw filled boxes, only single pixels. That fixed the cases where starting the image was very slow because of the large boxes and the estimations were _very_ 'pessimistic', it may change it now too. Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Jim Muth Subject: (fractint) C-FOTD 12-11-00 (Wings of Iteration [5]) Date: 11 Nov 2000 19:38:06 -0500 (EST) Classic FOTD -- November 12, 2000 (Rating 5) Fractal visionaries and enthusiasts: Rating a 5, today's fractal is one step above yesterday's. Now if I can continue this gradual improvement for 5 more days, we'll have an honest 10 rated image for the 17th. I named the picture "Wings of Iteration". It has a certain airborne feeling about it that inspired the name. With a running time of 8-1/2 minutes, the parameter file is a bit slow, making a download of the GIF image the wiser choice. As always, the GIF image file may be found at: alt.binaries.pictures.fractals and at: The fractal weather today was partly sunny, though quite breezy. The 60F (15.5C) temperature was mild enough -- too bad the high wind kept the fractal cats so skittish that they remained indoors. As is obvious by the shortness of the recent discussions, I've not been inspired to write philosophy for quite some time. The reason is that I'm disgusted by the political chaos here in the U.S. (Politics is the one thing that can really make me lose my cool.) But come tomorrow, I'll have at least another fractal, even if the words are few. Until then, take care, and sometimes the greatest wisdom comes in the fewest words. Jim Muth jamth@mindspring.com START 20.0 PAR-FORMULA FILE================================ Wings_of_Iteration { ; time=0:08:26.36 -- SF5 on a P200 reset=2001 type=formula formulafile=critical.frm formulaname=MandelbrotMix4 function=recip passes=1 center-mag=-0.56120497942872340/+1.28019792586280400\ /12622.28/1/-90 params=10/-1.3/1/-13/-2/100 float=y maxiter=2000 inside=0 logmap=110 periodicity=10 colors=000MTALXAJ_A9aO0a_0Gk00cnu_kpT<2>ffAdc9c_9aX9\ _V9ZR7XO7VM7VJ7TG5RE5QA5S75M53L23J03J03H0A<2>H0Qc0cw\ 0pz0zz2zz3yz7wz9uzAszErwGpsHnrLmnMk<2>fTfdVdcZfMJQac\ hafhahi_ki_mk_pkZskZumXymXznXznVzpVzpVzpZzsazuczwfuy\ zyzkmznizpfznazmXzmTzkOziJziGzhAyf5wf2wd0uc0sc0sZ0kV\ 9dRJXMRQJaJGkAAs37z03z00z0<2>0z00z30z90zG0yL0wQ0sV0p\ _0mf0ik0fp0cu0az2Xy9TyEQyLLyQHwXEwa9wh5wm2w<2>rRVs_M\ uhEwdHwcLyaOyZRyXVzVZzRa<2>zMksXakdRcmHVi9ncVzLpzMws\ OzmQzfRzaRzdTzhVziXzmZznZzr_zsazwczyczzdzzfzzhzzhrz_\ iuRanJThALh5Oh5Ri3Qi3Oi3Mk3Lk3Jk3Jm3Hm3Gm3En3Cn3Cn2A\ p29p27p25r23r23r22s20s20s20z70y50u30s20p02<5>a0XZ0aX\ 0fT0k<2>L0z<2>E0zC0zC3uAGkARa9cR9nH7z7Az0Cz3<3>XzVaz\ adzf<2>szzyzz<30>zzz } frm:MandelbrotMix4 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l } END 20.0 PAR-FORMULA FILE================================== Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: htes htes Subject: Re: (fractint) How to run Fractint in the Background? Date: 11 Nov 2000 18:39:45 -0800 (PST) properties. > The "Screen" tag describes how Windows displays the DOS box (since these > days DOS runs in Windows instead of the other way around). You currently > have it being displayed in a window instead of full-screen. Change Full screen? I don't want it to display full screen, I want it in a window. Anyhow, I've allready found a solution. (before I do any of this I set a disk-video mode in sstools.ini) What I do is open a dos box in a window. I cd to fractint, then type the word start (this is my batch file for animations), but I don't hit ENTER just yet. I then find another window, it doesn't matter which other window it is. I resize the window to a size small than the DOS box and put it below the DOS box. Then I go back to the DOS box, which has the word 'start' sitting at the prompt, and I smack the ENTER key. Immediatly, I mean less than half a second later, I click on the top bar of the misc. smaller window. This takes the 'focus' away from the DOS box, and fractint can then be started and shut down from within the batch file without jumping to full-screen and back again every time fractint is restarted. One slight problem: I have to remember NEVER to click on the DOS box, which will give it the focus. If this happens, the computer will freeze in a loop of jumping from full-scren to window to full-screen to window etc... My only other question is: Why haven't they updated the windows version to 20.0?? version 18.21 for Windows was greatly dissapointing, as it was severely stripped down in its features. (no batch mode? No pallete cycling? no pallete editor???) I would LOVE to see a full-featured windows port of dos version 20.0. This would eliminate screwing around with DOS settings to force it to behave like you want it to. Is there ever going to be a windows version? _______________________________________________________ Tired of slow Internet? Get @Home Broadband Internet http://www.home.com/xinbox/signup.html Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Jim Muth Subject: (fractint) C-FOTD 13-11-00 (The Cosmic Mystery [6]) Date: 13 Nov 2000 00:27:05 -0500 (EST) Classic FOTD -- November 13, 2000 (Rating 6) Fractal visionaries and enthusiasts: Today we continue our day-by-day climb up the ratings ladder with a fractal that rates a 6. The iterated formula subtracts Z^(-6.666) from Z^(-6.66) and multiplies the minute difference by a factor of 19999 before adding 1/C. The result of this operation is a rough open circle with a shallow bay at its east edge. The circle is filled with a ring of fractal islands, the most interesting island lying in the east bay. Today's midget lies at the tip of the negative tail of a larger midget that lies near the center of this east bay island. I named the picture, which is filled with comma-shaped elements, "The Cosmic Mystery". The reason I gave it such a name eludes me. I suppose there's something mysterious about it, a possibility heightened by the rather somber dark blue color palette. The parameter file renders in a little more than 5 minutes. A quicker way to see the mystery is to download the GIF image from: or from: The fractal weather today featured sun, clouds, wind, and a temperature of 57F (14C). This combination was barely acceptable to the fractal cats, who spent only 15 minutes out of doors. The day is finished; tomorrow is ready to begin. It's time to shut down the fractal shoppe and call it a night. Until next time, take care, and see you in 24 hours. Jim Muth jamth@mindspring.com START 20.0 PAR-FORMULA FILE================================ The_Cosmic_Mystery { ; time=0:05:18.29 -- SF5 on a P200 reset=2001 type=formula formulafile=critical.frm formulaname=MandelbrotMix4 function=recip passes=1 center-mag=+0.96820939344254350/+0.00080761418055334\ /7.534044e+010/1/80 params=1/-6.66/-1/-6.666/-20000/0 float=y maxiter=1200 inside=0 logmap=106 periodicity=9 colors=000M0FL0FL0GJ0IJ0JI0LI1M<3>C7SA9T9AV7CX6DY9G`\ AJc<3>MVoOYrQ`uTcxXfz_izzzz`lz`jz`ix`fs`dp`cl``g__d_\ Y`_VY_TT_SP_PM_OI_MFYQIXVLVYOTaQSdTSiXQm_PpaOudMxgLz\ jTzmgzVvyDzv0zs0zp0vm0oj1gg4`d6Tc9MaAIaDIdCGcFFcGDcI\ DaJCaMAaOA`P9`Q7`T6_V6_X4_Y3Y`3Ya1Yc0Xd0Xg0Xi0Vj0Vl0\ Vo0Tp0Tr0Or0Ts0Yu0av0gx0ly<2>0zz<2>1zz<2>9zyCzvFzsGz\ pJzm<2>QzdSzaVz_YzX_zT<3>izIlzFmzCpz9rz7oyCmxFjuJisM\ gpPdoTclXaj__gcYffVcjTamS_pPYuOVxMTzJQzIPzFMz<3>LSzM\ TzMVzOXzPXzQYzS_zT`zTazVczXdzYfz_fz`gz`iz<2>dmzfozfo\ z_pzSrzMsyFuv0vv9xsIypQzm`zl<2>zzdxzavz`uz_szXrzVpzT\ ozSmzPlzOizMgzLfzIdzGczFazD`zA_z9Yz7Yz4Xz6Vz7Tz7Sz9Q\ z9PzAOzAOzCMzDLzDJzFIzFGzGFzGDzIDzJCzJAzL9zL7zM6zM4z\ O4zO6zP<2>7zQ7zQ9zS<3>AzTAzTCzVCzVCzVDzXDzXCz_DzXDzT\ DzQFzPFzMFzJGzIGzFGzCIzAIz7Iz4Jz3Jz0Jz0Mz0Jz0Izg } frm:MandelbrotMix4 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l } END 20.0 PAR-FORMULA FILE================================== Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Jim Muth Subject: (fractint) C-FOTD 14-11-00 (Ignacio [7]) Date: 13 Nov 2000 19:13:02 -0500 (EST) Classic FOTD -- November 14, 2000 (Rating 7) Fractal visionaries and enthusiasts: With today's fractal we continue the one-step-a-day climb to the fractal heights. Perhaps with a bit of exaggeration, I rated today's image a 7. The scene exists in a remote (but not too remote) part of the infinite logarithmic spiral that is the fractal created by the simple formula Z^1.43+C. All fractals in this range are filled with discontinuities -- branch cuts if that's what you would call them. These breaks frequently spoil an image by cutting right through the most interesting part of it, but sometimes the breaks become so pervasive that they form their own patterns. Today's image consists entirely of such fractal bits and pieces. I named the picture "Ignacio". Once again I cannot justify my choice -- I simply like the sound of the word. As is the case in most of my fractals, a minibrot lies at the center of the screen. This midget is typical of midgets when the exponent of Z in the generating formula is in the range of 1.43. The midget is immediately identifiable as a minibrot, but its shape is distorted almost beyond recognition. The scene is filled with smaller midgets, one of which sits on the longest filament. If this smaller midget is interesting, I might pull it up and declare it FOTD in a coming post. The color palette of today's image features a cloud of fiery foreground fragments floating before a hazy blue background. The draw time of the parameter file is 6-3/4 minutes on an aging Pentium 200mhz machine. As is always the case, the GIF image file can be downloaded in one minute or so from the Usenet binary newsgroup: It will soon also be available on Paul Lee's web site at the URL: The day's weather featured lots of clouds, a raw wind, and a temperature of 54F (12C) -- unpleasant enough to keep the fractal cats snugly indoors, wishing they could be comfortable out in the yard. And I wish I could find that philosophical muse, which seems to have deserted me. I'll try to philosophize tomorrow. If I fail, I'll still have a fractal. Check then to see what happens. Until next time, take care, and see you soon. Jim Muth jamth@mindspring.com START 20.0 PAR-FORMULA FILE================================ Ignacio { ; time=0:06:45.50 -- SF5 on a P200 reset=2001 type=formula formulafile=branchct.frm formulaname=MandelbrotBC passes=1 center-mag=+0.3055\ 2729081659520/+1.59327449871295100/1983.157/1/175 params=1.43/0/-0.47/0 float=y maxiter=30000 inside=0 logmap=95 symmetry=none periodicity=10 colors=000zUHzUGzRGzPG<3>wGGwEGvEG<3>qDGpDGpCFoCFmCF\ lCFkAFjAFhAF<4>d8Fc8Fa8F<3>Z7EY7EW6E<2>U5ET5ER5EQ5EP\ 3EO3EN3EL3EL2C<3>H1FG1GE1HE0I<3>90K80K70L00D20G50I70\ M91PC2RE3VH6XJ7Z<2>QChTDkVGmYHp_IscIwaJu<4>aKuaKt`Kt\ <2>`Lt`Lt`Ns<8>_PrZPrZPrZQp<4>ZRpYRoYRoYTo<3>YUnYUnW\ Un<3>WVmWVmWWmVWmVWnVWoVYpVYrVYsVYt<3>QTyPRzOQz<4>IK\ zHJzGIzEHzDGz9EzADzCEzDEzEGz<3>JHzKIzLIz<3>RKzTKzULz\ VLzWNy<3>`OxaPwcPwdQueQufQugRthTtjUt<3>mZtm_to`t<3>r\ essfsugs<3>xlsxmsyos<2>zrsworrkrogpjdpf`oaYoZUnUQnQN\ mLJmIGlDCl21b98lECuGEwHHxIIyJKzKLzLOzNPzORzPUzQVzRYz\ TZzU`zVazWdzVfzWezWdzWczYazY`zY_zmLzmLzoKz<5>sJzsJzu\ Jz<4>xIzxIzyIz<4>zHz } frm:MandelbrotBC = { ; Z = Z^E + C e=p1 p=real(p2)+PI q=2*PI*trunc(p/(2*PI)) r=real(p2)-q Z=C=Pixel: Z=log(Z) IF(imag(Z)>r) Z=Z+flip(2*PI) ENDIF Z=exp(e*(Z+flip(q)))+C |Z|<100 } END 20.0 PAR-FORMULA FILE================================== Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: Paul DeCelle Subject: (fractint) Re: Date: 14 Nov 2000 00:54:22 -0500 Hi, b=E4rbel- I'm sorry I haven't replied sooner - I changed over my ISP a month or so = ago and haven't yet canceled my old service. I just got around to checking my 'old' emails t= onight... Anyway, I use Ultra Fractal - http://www.ultrafractal.com - to create m= y fractal images. It's shareware that's free for the first thirty days. After that, it can be p= urchased for US $35. I've found that the best way to learn to use the Ultra Fractal program is= to first proceed through an excellent series of beginning tutorials that can be found at http://www.parkenet.org/jp/ufresources.html Almost all of the formulas folks have written for UF can be downloaded fr= om http://formulas.ultrafractal.com/ You can also sign up to the Ultra Fractal Mail list at http://www.fractalus.com/ultrafractal/list.htm - Every day, people are po= sting parameter files to this list, which can be very instructive to both new and experienced user= s. BTW, my new email address is pdecelle@ameritech.net. Any replies should = be directed there, as I'll soon be discontinuing this Prodigy account. I hope this helps! Regards, Paul Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@fractint.org Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------------------------------------------------------- From: cindy mitchell Subject: (fractint) Video Date: 14 Nov 2000 12:18:54 -0800 Hello, I am forwarding this message to the list. Hopefully someone can help. Thank you, Cindy >Great site fractallady! >I am desperately trying to find a video on