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Re: [Fractint] Ancient LnDio frm edit
by Harold Lane 14 Apr '16

14 Apr '16

Sciwise, Did you intend to insert a parameter list and updated formula file in your email/post (below?) I'd like to try your corrected version. I'm guessing your subject line: "LnDio" is "Linear Diode" -- right? <== <== - Hal Lane ######################## # hallane(a)earthlink.net ######################## -----Original Message----- From: Fractint [mailto:fractint-bounces@mailman.xmission.com] On Behalf Of sciwise(a)ihug.co.nz Sent: Thursday, April 14, 2016 3:26 AM To: Fractint and General Fractals Discussion <fractint(a)mailman.xmission.com> Subject: [Fractint] Ancient LnDio frm edit I'm no longer certain how this mistake crept into the code ; previously the variable u was being assigned a different value every time an iteration was completed. This is a more correct version ; doesn't , at the moment, produce such an interesting fractal ; however the results are now more accurate than previously. I do however have a question . The formula for Newton's Method is: x Pd } comment { The floating point option needs to be selected , 512 iterations , or more , should be selected . Also a logarithmic palette . Minibrot structures aren't immediately apparent at the default parameter settings . A parameter setting of : xmin - 0.005770310598 xmax - 0.005666943901 ymin 0.000516417395 ymax 0.000594104392 shows embedded mimibrots and spirals , wether this is relevant in a real diode is unknown . You might be able to locate mimibrots elsewhere on the map . } ========END PARAMETER FILE================== _______________________________________________ Fractint mailing list Fractint(a)mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/fractint --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

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Ancient LnDio frm edit
by sciwise＠ihug.co.nz 14 Apr '16

14 Apr '16

I'm no longer certain how this mistake crept into the code ; previously the variable u was being assigned a different value every time an iteration was completed. This is a more correct version ; doesn't , at the moment, produce such an interesting fractal ; however the results are now more accurate than previously. I do however have a question . The formula for Newton's Method is: x Pd } comment { The floating point option needs to be selected , 512 iterations , or more , should be selected . Also a logarithmic palette . Minibrot structures aren't immediately apparent at the default parameter settings . A parameter setting of : xmin - 0.005770310598 xmax - 0.005666943901 ymin 0.000516417395 ymax 0.000594104392 shows embedded mimibrots and spirals , wether this is relevant in a real diode is unknown . You might be able to locate mimibrots elsewhere on the map . } ========END PARAMETER FILE==================

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Tangling Tendrils
by Mike Frazier 29 Mar '16

29 Mar '16

Here is an animation of a fractal I found back in 2012. The fractal mixes z * (cosh(z) - 1) and z * z * sinh(z) at locations -1 and +1. Varying the locations of the two components causes the tendril arms to be more or less curled. The animation moves the locations by changing the parameters p3 and p4 from -1.1 to -0.8 and +1.1 to +0.8. Moving the component locations also causes the center of the desired area to move so the animation moves the fractal center to follow that as well. To keep the render time reasonable I made the movie only 5 seconds long (61 frames). It still took 1.5 hours to render. Here is a link to the movie (2.5 MB): http://dl.dropboxusercontent.com/u/33642054/image/pr_3cosh-3sinh_F.mov Here is a link to an image at about the 1/3 point of the movie at locations -1 and +1: http://dl.dropboxusercontent.com/u/33642054/image/pr_3cosh-3sinh_F_640_5.jpg The FractInt compatible PAR file for the image is: TanglingTendrils { ; Exported from Fracton. reset=2004 type=formula formulafile=fracton.frm formulaname=F_20160309_1314 passes=1 float=y center-mag=0.008301665151149345/0.1582340776519129\ /566.2672882912181/1/0/0 params=-1/-1/0/4/-1/0/1/0/0/0 maxiter=2000 inside=0 periodicity=6 colors=000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O\ 40C10000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40\ C10000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C1\ 0000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C100\ 00C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000\ C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C1\ 0O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O\ 40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40\ ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA\ 0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0h\ I0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0\ oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS\ 0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0u\ a0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0ua0\ ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0ua0ym\ 0zy0ym0ua0oS0hI0ZA0O40C10 } frm:F_20160309_1314 { ; Similar to the parallel resistance formula a=real(p1),b=real(p2),d=imag(p1),f=imag(p2), z=0,c1=pixel-p3,c2=pixel-p4: z=1/(1/(a*z*(cosh(z)-1)+c1)+1/(d*z*z*sinh(z)+c2)), |z|<100 } -- Mike Frazier www.fracton.org

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I have a Cubby link of Albrecht's that works -- and he has previously...
by Harold Lane 23 Mar '16

23 Mar '16

I have a Cubby link of Albrecht's that works -- and he has previously given me permission to host images of his on my server -- so, when I found a few interesting images of his that I hadn't seen before, I thought I'd make them available to anyone who would like to see them: Notes: The leading 2 digits & "_" were generated by Cubby cloud hosting service. Click image for full size, if needed... - Nebula 06_35187246.GIF http://www.emarketingiseasy.com/Albrecht/MFR_14_2/06_35187246.GIF - HYPNO 09_31587-08.GIF http://www.emarketingiseasy.com/Albrecht/MFR_14_2/09_31587-08.GIF - Vision 11_31587-33 http://www.emarketingiseasy.com/Albrecht/MFR_14_2/11_31587-33.GIF - Conjuration 12_31587-42 http://www.emarketingiseasy.com/Albrecht/MFR_14_2/12_31587-42.GIF - Hal Lane ######################## # hallane(a)earthlink.net ######################## --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

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FW: Please post [this animation] to the list - From JoTz
by Harold Lane 09 Mar '16

09 Mar '16

> Please post to the [Fractint] list. Sure. Very nice animation! I like to watch everything go by at 1/2 speed so I can see a little more of your detail before it's zoomed off the screen: For: Windows Media Player: Right click window frame > Enhancements > Play speed settings > slider: 0.5 The motion is still smooth enough to not appear as stepping between frames at this speed. At (0:47...) I like the "figure/ground" effect from the pale background glowing "behind" the fractal. I'm wondering how you found the central figure that appears at (1:00)... It initially seemed similar to other areas in the image -- but, what a difference! Stopping playback at (1:13) and (1:17) give very nice still images. Thanks, JoTz! - Hal Lane ######################## # mailto:hallane@earthlink.net ######################## From: LLOYD GARRICK [mailto:lgarr@colorado-hiking.net] Sent: Tuesday, March 8, 2016 9:42 PM To: Harold Lane <hallane(a)earthlink.net> Subject: Please post to the [Fractint] list I finally succeeded in animating one of the recent Mike Frazier "electronic" fractals; the pattern is very complex, rivaling Niekamp's works. Difficult to color however; I scanned over 400 MAP files in my collection, found only about 4 that were acceptable. Again, compressing the video would make it pointless, so I upload the hi-rez AVI file, 600MEG for 100 seconds. http://www.fractal-animation.net/special/DeepPurple800.zip Enjoy! JoTz ---- --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

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Slow down
by sciwise＠ihug.co.nz 06 Mar '16

06 Mar '16

Quite a few of us have health concerns. Most likely you find that this interferes with a steady learning and creative endeavor. Why be informed and creative ; because this is how we overcome the limitations that have always been imposed upon us . For most persons the harsh reality of our situation is something that's just beyond our comprehension and many shy away from even contemplating this whilst others over indulge in contemplating their mortality. I'm in both categories. So my request to YOU , consider how fractint knowledge might be applied to solving some of these problems . Edward.

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Paul N. Lee
by John Wilson 05 Mar '16

05 Mar '16

Couldn't attend your wake today, Paul, but like many others, I remember you. John W.

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A Fractint box?
by John Wilson 01 Mar '16

01 Mar '16

If I were just a little younger and less shaky I'd be tempted to solve Jim's problem by— " Run DOS on the Raspberry Pi – Use rpix86 to turn your Pi into a 1980s supercomputer " . John W.

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I'm working on resuming the FOT????
by Jim Muth 26 Feb '16

26 Feb '16

Fractal fans: I'm still here and ready to resume my fractal adventures, but my 21-year-old DOS machine dedicated to Fractint is at the end of the road. I have two other working machines, both running Windows-XP, which probably for video incompatibility reasons will not run the DOS version of Fractint. Is there a version of Fractint that will run under XP and operate similar to the DOS version? If there is, I would appreciate the internet address. I'm sorry to hear about Paul Lee. Jim M.

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Fractal of the ? -- test
by Jim Muth 24 Feb '16

24 Feb '16

Fractal enthusiasts: This is a test to see if I am still subscribed to the list. I might be resurrecting the FOTD as the FOT? in the near future. Glad to see the list has not died in my absence. Jim M.

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