November 2012 - Fractint - mailman.xmission.com

Mixing Cosine
by Mike Frazier 02 Nov '12

02 Nov '12

Here is another fractal using the parallel resistor formula. The basic formula combines any two powers of z. It seems to make a fractal with pretty much any coefficients you pick. I wondered what would happen if I substituted a cosine for one of the z terms. The cosine seems to add a lot of intricate detail. Here is a link to a web page with an image and a description of what I found: http://www.fracton.org/fmlposts/mixing_cosine.html I will also list the PAR file here for people collecting them from the mail list: Mixing_Cosine { ; Exported from Fracton. reset=2004 type=formula formulafile=fracton.frm formulaname=F_20121102_1156 passes=1 float=y center-mag=0.5475442691084866/-2.413982470836851e-\ 06/3333.333375/1/0/0 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_20121102_1156 { ; 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*cos(z)+c1)+1/(d*(z^f)+c2)), |z|<100 } -- Mike Frazier www.fracton.org

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Mixed Up Minibrot
by Mike Frazier 02 Nov '12

02 Nov '12

I haven't posted any fractals for a few months while I was testing Fracton's 3D model code. I really need a faster computer (or faster code) to make them practical. I stopped one model after two weeks of calculations when it still hadn't finished. Doubling the resolution of the model often takes 10 times longer to calculate. Changing the resolution of a model from coarse to good often changes the execution time from minutes to months. Luckily, there are still plenty of fractal adventures to be had in the 2D space where calculations finish in a much more reasonable time. I recently explored fractals using the parallel resistor formula I have posted in the past. I noticed a few things, although there are still many more behaviors to be discovered. Here is a link to a web page with an image and a description of what I found: http://www.fracton.org/fmlposts/mixed_up_minibrot.html I will also list the PAR file here for people collecting them from the mail list: MixedUpMinibrot { ; Exported from Fracton. reset=2004 type=formula formulafile=fracton.frm formulaname=F_20121101_1707 passes=1 float=y center-mag=-0.3871042832031641/-1.169807668188325e\ -12/1333333350/1/90/0 params=-1/1/8/7/-1/0/1/0/0/0 maxiter=4000 inside=0 periodicity=6 colors=000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O\ 40C10000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40\ C10000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C1\ 0000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C100\ 00C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000\ C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C1\ 0O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O\ 40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40\ ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA\ 0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0h\ I0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0\ oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS\ 0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0u\ a0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0ua0\ ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0ua0ym\ 0zy0ym0ua0oS0hI0ZA0O40C10 } frm:F_20121101_1707 { ; 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^b)+c1)+1/(d*(z^f)+c2)), |z|<100 } -- Mike Frazier www.fracton.org

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Can't get it to work
by Dean Norris 02 Nov '12

02 Nov '12

I was using Fractint back in the late 80's. I Just tried to D/L a windows 7 version and unpacked it. I cant find a working exe file. I just get an error message saying it cannot open the file. It tells me it won't work in a 64bit environment. Help Dean

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Re: [Fractint] Mixed Up Minibrot
by jimmckenzie＠earthlink.net 02 Nov '12

02 Nov '12

NNNNNNNNNNNNNIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIICCCCCCCCCCCCCCCCCCCCCEEEEEEEEEEEEEEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -----Original Message----- From: Mike Frazier Sent: Nov 1, 2012 10:11 PM To: Fractint and General Fractals Discussion Subject: [Fractint] Mixed Up Minibrot I haven't posted any fractals for a few months while I was testing Fracton's 3D model code. I really need a faster computer (or faster code) to make them practical. I stopped one model after two weeks of calculations when it still hadn't finished. Doubling the resolution of the model often takes 10 times longer to calculate. Changing the resolution of a model from coarse to good often changes the execution time from minutes to months. Luckily, there are still plenty of fractal adventures to be had in the 2D space where calculations finish in a much more reasonable time. I recently explored fractals using the parallel resistor formula I have posted in the past. I noticed a few things, although there are still many more behaviors to be discovered. Here is a link to a web page with an image and a description of what I found: http://www.fracton.org/fmlposts/mixed_up_minibrot.html I will also list the PAR file here for people collecting them from the mail list: MixedUpMinibrot { ; Exported from Fracton. reset=2004 type=formula formulafile=fracton.frm formulaname=F_20121101_1707 passes=1 float=y center-mag=-0.3871042832031641/-1.169807668188325e\ -12/1333333350/1/90/0 params=-1/1/8/7/-1/0/1/0/0/0 maxiter=4000 inside=0 periodicity=6 colors=000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O\ 40C10000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40\ C10000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C1\ 0000C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C100\ 00C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000\ C10O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C1\ 0O40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O\ 40ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40\ ZA0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA\ 0hI0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0h\ I0oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0\ oS0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS\ 0ua0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0u\ a0ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0ua0\ ym0zy0ym0ua0oS0hI0ZA0O40C10000C10O40ZA0hI0oS0ua0ym\ 0zy0ym0ua0oS0hI0ZA0O40C10 } frm:F_20121101_1707 {; Similar to the parallel resistance formulaa=real(p1),b=real(p2),d=imag(p1),f=imag(p2), z=0,c1=pixel-p3,c2=pixel-p4:z=1/(1/(a*(z^b)+c1)+1/(d*(z^f)+c2)),|z|<100} -- Mike Frazier www.fracton.org

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