February 2002 - Fractint - mailman.xmission.com

Re: [Fractint] Periodicity
by Jonathan Osuch 18 Feb '02

18 Feb '02

Guy >>> Setting the Maxiter-values to a strict minimum at very high >>> magnifications (at Arbitrary precision!) saves time.. >> >> So does turning the periodicity checking on. > ohh! { LOL. A fine counter example! In general, turning periodicity on will speed up image generation. I have on the back burner a speedup for the periodicity checking code. Maybe I'll tackle it after I finish the port of the assembly language formula parser to Xfractint. Jonathan

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RE: [Fractint] AMD Athlon XP vs Intel Pentium 4
by thbernt 18 Feb '02

18 Feb '02

I just bougth a computer with a AMD Athlon XP 1700+ processor, and I tested my Fractint Screen Saver on it yesterday, in other words running Fractint in diskvideo mode, and I was very pleased with the performance. But I don't have any numbers to support this. >===== Original Message From "David Jones" <gnome(a)hawaii.rr.com> ===== >Check Tom's Hardware Guide, and Anandtech.com. >From what I see on both, Athlon XP keeps up with the >Pentium 4, despite its slower clock speed (compared to >the newest P4s), and beats them in most throughput >tests. > >Of course, don't believe any of those sites test using >Fractint or any other 16-bit app. ;-) > >David >gnome(a)hawaii.rr.com > >On 17 Feb 02, at 19:05, Lee Skinner wrote: > >> Does anyone know if the newest AMD Athlon XP is better (speedwise) at running >> a 16-bit application (Fractint, of course) than the newest Pentium 4's? >> >> (Gathering upgrade information) >> >> Thanks, >> >> Lee Skinner >> >> _______________________________________________ >> Fractint mailing list >> Fractint(a)mailman.xmission.com >> http://mailman.xmission.com/cgi-bin/mailman/listinfo/fractint > > > > >_______________________________________________ >Fractint mailing list >Fractint(a)mailman.xmission.com >http://mailman.xmission.com/cgi-bin/mailman/listinfo/fractint

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(no subject)
by Jonathan Osuch 16 Feb '02

16 Feb '02

Guy, > Setting the Maxiter-values to a strict minimum at very high > magnifications (at Arbitrary precision!) saves time.. So does turning the periodicity checking on. Jonathan

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FOTD 16-02-02 (Lantern Spiral [8])
by Jim Muth 16 Feb '02

16 Feb '02

FOTD -- February 16, 2002 (Rating 8) Fractal visionaries and enthusiasts: Yes, I realize that three days have passed since the last FOTD. The FOTD CD is coming on schedule, (8 months are ready, 63 months remain to be done, and the colors of many of the old images need to be brightened.), but the CD is taking so much of my spare time that I have little time remaining for new FOTD's. The FOTD is not in danger of going the way of the dodo however, and when the CD is ready, the new FOTD's will once again appear on a daily basis. After all, what would the philofractal list be without a new FOTD every day? It certainly is not a UF or FractalTalk list. Today's formula, NewtonTest27, is an old one that has lain idle for several years. It represents an early effort on my part to do something unusual with Newton's fractals. Nothing much ever came of the effort, for shortly after writing today's formula, I got involved in the four-dimensional Julibrot figure and midgets in 2-part formulae, and soon forgot my Newton's efforts. But as today's 8-rated FOTD shows, some of these old Newton's formulae can create very interesting images. Studying today's image, I first noticed the prominent spiral in the upper left, then my eye was caught by the lantern-like figures rising from the lower right corner and merging into the spiral. I named the picture "Lantern Spiral". With a rating of 8, the 3-minute render time of the parameter file is quite reasonable. But it is not absolutely reasonable. Those who demand the ultimate in reason will find the image posted in all its illumined glory to Paul's web site at: <http://home.att.net/~Paul.N.Lee/FotD/FotD.html> and to Scott's site at: <http://sdboyd.dyndns.org/~sdboyd/fotd/index.html> The fractal weather Friday here at Fractal Central was fair enough. The comfort of hazy sun and a temperature of 52F 11C was tempered by a chilly wind that kept the fractal cats confined to the porch. From the porch, they kept a watchful eye on a flock of robins that descended at midday to feast on the holly berries. Tippy chattered wishfully for a robin to stray within pouncing range, but the wise birds never came within several meters of his eagerly waiting claws. As for myself, it's a Saturday morning and I've got 61 months of FOTD's yet to prepare for transfer to CD. So until the next FOTD appears in a couple days, take care, and keep the faith. Jim Muth jamth(a)mindspring.com START 20.0 PAR-FORMULA FILE================================ Lantern_Spiral { ; time=0:03:14.16--SF5 on a P200 reset=1960 type=formula formulafile=allinone.frm formulaname=NewtonTest27 passes=1 center-mag=-1.11\ 79/-0.409735/3.174717/1/-90/-1.23373533611470521e-\ 014 params=2/2.4/2/2/1/1e-015 float=y maxiter=90 bailout=100 inside=period logmap=yes symmetry=xaxis periodicity=10 colors=000TTdPQ_JPVFMPdzjVxaLcTpT6f\ OAVIFLCJ96OS4Pi3Qz1Sz1TzYMrzFPcO0DXCM`PXdcdjpoozxs\ zf`zQIz90s94j99aAFTALLAPCAVLAPTAJaADi96r90z90vI0rQ\ 0o_4jf7foAaxD0Q03F1DG0MG0XI0dI0oJ0xJ0sD0o9Dj3Qf0cc\ 0pT0mL4mC9l3Dl4Fr6Fu6Gx7Gy7Gz4Fx3Dp14g03`01T00P06M\ 3AL7GLM71xc6_TDpXgCrT_3_MCSXzxzxzsjrXY`P_400DLzGd0\ 4V6ALDGzF1jI9SJFQz3IgCgz0Xv0Lc9zIzfJfza0sX3XQCYCsM\ GaxL0_L4Y00P70IFAlFXaGTTIQJJOa1Ar09SzFOyGJjIFYJ0Vz\ 1Sv4Pi7MXVz_OmTG_PzXLcQLszzcrmP`_zzxszmdmcP_TiL0ya\ 6gXCQQGVzvDozCfuC_iASX4J07L09L9GC0DF6CID7Co9Fg9G_A\ JSd0vX3lfaAolOdgFTc7J_07V0zzzz0izI_z_PzpFF_`jdISVJ\ O30L70GC6DGDzorz0go7_VFSOziJx`FcSsz3zzJmzL`oLO_LA9\ TADQAIOxz_fpTQ`PpsragfOXVylrgafQTV17P4AO6FM9ILzzDx\ zGgmIQ_JM70IC0DGAOc3zz0xm0__9zzzdpizzzzxz1iI4`J7SL\ zzFlpIT`JzjxmajTTYDD0uvcdiXPXQz0rl4fTDVlzi_u`MaSMz\ cjz9YvDMcIz00u44dAAPGGyTslQj_PaMMTXz3LmC } frm:NewtonTest27 {; Jim Muth a=real(p1), b=imag(p1), c=real(p2), d=imag(p2), k=real(p3), f=imag(p3), z=(pixel): zx=(z^b)-a zy=(c*z)^d z=z-(k*zx/zy), |zx| >= f } END 20.0 PAR-FORMULA FILE==================================

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Re: [Fractint] FOTD 11-02-02 (Mandelbrot-03 [5])
by Multiple Bogeys 15 Feb '02

15 Feb '02

>I have never really understood what causes these ghostly high- >iteration remnants of the unperturbed M-set to remain in the >background of the perturbed sets. I have read explanations >explaining that the foreground in images like today's is complex >material, while the background is real material, but this >doesn't really make sense. My own guess is that regardless of >where the iterated points start their travels, if they don't >escape first, they will eventually settle into the same orbits >as the points that start at 0,0. That's exactly what happens. There's only the two critical points, infinity and 0, and infinity is always superattracting. Under the Sullivan theorem there can only be one other attractor at most, and it then has to capture 0. So the non-escaping points, if they exist, go to a finite attractor and then 0 goes to that attractor too.Get more from the Web. FREE MSN Explorer download : http://explorer.msn.com

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Re: [Fractint] FOTD 28-01-02 (Sandy Bottom [5])
by Multiple Bogeys 15 Feb '02

15 Feb '02

>> Why don't they just filter out MS Outlook? :)Get more >> from the Web. FREE MSN Explorer download : >> http://explorer.msn.com > And use MSN instead? ;-) > David happily using Pegasus Mail Don't have much choice here, since the only other interfaces to Hotmail are Outlook (blech) and the Web interface (double bletch, and can't save messages locally). And hotmail is the only free email provider that's reasonably stable over years. And a non-free email address can't be risked on usenet or a mailing list, since it can't be thrown away and replaced easily if it gets too much spam or some loser decides to mailbomb it...Get more from the Web. FREE MSN Explorer download : http://explorer.msn.com

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Re: [Fractint] re Fractint on Win2000 - The Kludge.....
by Multiple Bogeys 14 Feb '02

14 Feb '02

>> > Hopefully if all went according to Hoyle you will have a fractint.cfg >> file... >> >>If all went according to who? >Edmond Hoyle (1671-1769), generally known for his pretty much definitive >rules for various card games. That is not logical. Hoyle died in 1769, but Fractint config files did not exist until sometime after 1980. Therefore, Hoyle cannot have written anything about them. :-)Get more from the Web. FREE MSN Explorer download : http://explorer.msn.com

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FOTD 13-02-02 (Stained Glass Window [9])
by Jim Muth 13 Feb '02

13 Feb '02

FOTD -- February 13, 2002 (Rating 9) Fractal visionaries and enthusiasts: The FOTD CD is progressing nicely. Of the 70 or so odd months of FOTD's that will be on the disk, 3 months are already finished. At this rate, if nothing goes wrong, (which probably will happen), I could have the disk ready before the end of the year. Today's image is an old one, which I created back in 1997. Looking at it, with its warmly glowing effect of being illuminated from within, I wonder how much, if at all, my images have improved in the past five years, especially since I became obsessed with an endless series of Mandelbrot midgets. I have named the image "Stained Glass Window" for its effect of sunlight streaming through a church window at sunset. I rated the image a 9 because it is worth that lofty rating. The render time of 11 seconds is a great demonstration that good fractals need not take a long time to render. It will take several times that long to go online and download the completed image from Paul's web site at: <http://home.att.net/~Paul.N.Lee/FotD/FotD.html> or from Scott's site at: <http://sdboyd.dyndns.org/~sdboyd/fotd/index.html> The fractal weather Tuesday here at Fractal Central was uneventful, though the cats, who were dis-satisfied, must have considered uneventful weather too harsh. The hazy sun, moderate winds, and temperature of 52F 11C kept them confined to the porch, waiting for the sun, which at this time of year almost but not quite tops the holly trees around midday. An afternoon dish of tuna eased their discomfort. My discomfort will be eased when the day's work is finished and the FOTD CD is ready. It will take about 5 hours to finish the day's work, and closer to 500 hours to finish the CD, but the only way to finish is to start. So until next FOTD, take care, and be patient. Jim Muth jamth(a)mindspring.com START 20.0 PAR-FORMULA FILE================================ StainedGlassWindow { ; time=0:00:11.27--SF5 on a P200 reset=2002 type=formula formulafile=jim.frm formulaname=Mytest08c function=cotan passes=1 center-mag=0/1.55431e-015/0.6577505 params=2/0/0/1\ /0/2 float=y maxiter=500 bailout=100 inside=bof60 logmap=yes symmetry=xyaxis periodicity=10 colors=000G00C00Q00Q00Z00W00`00`00a00a00b00b00d00d\ 00e00e00g00g00i00i00j00j00k00k00m00m00n00n00o00o00\ p00p00r00r00s00s00t00t00u00u00u00w00w50x50x50y50y5\ 0zP0zU0zY0z`0ze0zg0zk0zo0zo0zn0zl0zk0zg0zf0zd0zb0z\ W0zW0zW0zW0zW0zO0zO0zO0zO0zO0zO0zL0zL0zJ0zF0zF0z50\ z50zF0z50zF0zF0zF0zF0zO0zW0zW0zW0zW0zW0zX0zX0zW0zW\ 0zW0zW0zU0zU0zU0zR0zR0zR0zT0zR0zR0zP0zP0zW0z00z00z\ 00z00z00z00z00z00z00z00z00z00y00y00x00x00w00w00u00\ u00t00t00s00s00r00r00p00p00o00o00n00n00m00m00k00k0\ 0j00j00i00i00g00g00e00e00d00d00b00b00a00a00`00`00Z\ 00Z00X00X00W00W00V00V00T00T00R00R00Q00Q00O00O00M00\ M00K00K00I00I00G00G00E00E00C00C00A00A0070070050050\ 0200200000000000000000000000000L00M00M00O00O00Q00Q\ 00Q00Q00Q00Q00Q00Q00Q00Q00Q00Q00Q00Q00Q00Q00Q00Q00\ Q00Q00Q00Q00Q00Q00Q00Q00Q00Q00Q00Q00Q00Q00Q00Q00Q0\ 0Q00Q00Q00Q00Q00Q00Q00Q00 } frm:Mytest08c {; Jim Muth z=fn1(pixel), a=real(p3), b=imag(p3), c=a+(b*pixel): z=(((z^p1)*z)^p2)^(-p2)+c, |z|<=100 } END 20.0 PAR-FORMULA FILE==================================

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Which (if any) of the display modes work with ATI All-in-wonder 128
by DalesMicro＠aol.com 12 Feb '02

12 Feb '02

I recemtly purchased the above board but none of the VESA drivers work with it, are there any that doo? Thanks, Dale Denham

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FOTD 11-02-02 (Mandelbrot-03 [5])
by Jim Muth 12 Feb '02

12 Feb '02

FOTD -- February 11, 2002 (Rating 5) Fractal visionaries and enthusiasts: Progress continues on the FOTD CD, which is cutting into my current fractal time, but I am still managing several FOTD's per week. Today's perturbed fractal, with its ghostly outline of a Mandelbrot bud in the background and a spectacular spiral in the foreground, is a return to the type of images I was doing 10 years ago. Well, it's not exactly like what I was doing ten years ago, since today's image would not have been possible back then. The maxiter of today's image is 300,000, while 10 years ago, Fractint's maximum maxiter was 32,767. I have never really understood what causes these ghostly high- iteration remnants of the unperturbed M-set to remain in the background of the perturbed sets. I have read explanations explaining that the foreground in images like today's is complex material, while the background is real material, but this doesn't really make sense. My own guess is that regardless of where the iterated points start their travels, if they don't escape first, they will eventually settle into the same orbits as the points that start at 0,0. The name of today's image -- Mandelbrot-03 -- is more of a catalog number than a true name. The rating of 5 is perfectly average. The render time is in the range of 5 minutes, which is bearable. And the pre-rendered GIF image can be downloaded from either of the following two web sites: <http://home.att.net/~Paul.N.Lee/FotD/FotD.html> or: <http://sdboyd.dyndns.org/~sdboyd/fotd/index.html> The fractal weather Sunday was wet and chilly -- not the most enjoyable kind of weather for fractal cats. But the intrepid duo faced the adversity bravely, and came through the day with only minor complaints. As for myself, it's Monday morning and I've got a load of work waiting to be done, not to mention the work on that FOTD CD, which is in progress. Until the next FOTD arrives in a couple days, take care, and what happened to the public's fascination with fractals. Jim Muth jamth(a)mindspring.com START PARAMETER FILE======================================= Mandelbrot-03 { ; time=0:05:40.98--SF5 on a P200 reset=2002 type=mandel passes=1 center-mag=-0.7527\ 0080049748840/-0.03833627883328024/20391.82/1/167.\ 5/8.22113627174658745e-011 params=0.6669953/0.6670\ 071 float=y maxiter=300000 inside=255 logmap=35 colors=0002hd3ge4ge5fe6ee6ee7df8cf9cfAbfAbfBafC`gD\ `gE_gE_gFZgGYgHYhIXhIXhJWhKVhLViMUiNTiNTiOSiPSiQRj\ RQjRQjSPjTPjUOjVNkVNkWMkXLkYLkZKlZKl_Jl`IlaIlbHlbH\ mcGmdFmeFmfEmfEmeFndFncFncFnbFnaFnaGn`Gn_GnZGnZGnY\ GnXHnXHnWHnVHnUHnUHnTInSInSInRInQInPInPJnOJnNJnNJn\ MJnLJnLKnKKnJKnIKnIKnHKnGLnGLnFLnELnDLnDLnCMnBMnBM\ nAMn9Mn8Mn8Nn7Nn6Nn6Nn5Nn4Nn2Oo4Nn6Nm8NlANkCMkEMjG\ MiIMhKLhMLgOLfQLeSKeUKdWKcYKbZKbYKaXK`WK_VKZUKYTKX\ SKWRKVQKUPKTOKSNKRMKQLKPKKOJKOLJMMJLOIJPIIQHGQHFRG\ DRGCSFBSF9TE8UE6WD5YD3_C2aC1`D2aD3bE3cF4dE4eF5eG5d\ G6dG6dH7dH7dI8dI9dI9dJAcKAcKBcLBcMCcNCcNDcODcPEbQF\ bRFbRGbSGbTHbUHbUIaWIaYJa_JaaKacLacL`cM`cM`cNaeNag\ OaiObkPbmPboQcqQcsPcuQdwSdxUdyWfzYhz_jzamzcozepzgq\ zirzkszmtzouzqvzswzuxzwyzyzzzzzzzzzzzzzzzzzzzzzzzz\ zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz\ zzzzzzzzzzzzzzzzzzzzzz00I } END PARAMETER FILE=========================================

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