POV-Ray : Newsgroups : povray.macintosh : Mandelbrot and Julia sets : Re: Mandelbrot and Julia sets Server Time27 Mar 2023 07:30:42 EDT (-0400)
 Re: Mandelbrot and Julia sets
 From: Francois LE COAT Date: 11 Jan 2023 09:51:20 Message: <63becce8@news.povray.org>
```
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"headline": "Re: Mandelbrot and Julia sets",
"dateCreated": "2023-01-11T14:51:20+00:00",
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Hi,

Francois LE COAT writes:
>> Here is a part of Mandelbrot fractal set in 3D with my software:
>>

>>
>> In Eureka 2.12 the function is julia(x-0.1562+i*(y+1.0323),0)

>> of distances algorithm. The function julia(z,z') corresponds to
>> the Mandelbrot set when z varies, and Julia when z' varies.
>>
>> Here is a part of Julia fractal subset in 3D with my software:
>>

>>
>> In Eureka 2.12 the function is julia(-0.82+i*0.18,y*exp(i*x))
>> plotted in [-PI/2,PI/2][0,PI/2] The 3D is obtained with the
>> approximation of distances algorithm. The function julia(z,z')
>> corresponds to the Mandelbrot set when z varies, and Julia when
>> z' varies.
>>
>> The surfaces were exported from Eureka 2.12 in 3D ".TRI" format and
>> transformed into a POV-Ray script with `tri2pov.ttp`. The same move
>> around the surface is performed, with rotations of one degree. This
>> is an illustration of the export possibilities of Eureka 2.12 =)
>>
>> I wish you will appreciate...
>
> Here is corresponding Julia and Mandelbrot fractal sets with
> Mathematica software, in the attached "fractal.gif" picture.
>
> The Mandelbrot set is the same, except the colormap. But for
> the Julia subset, I draw julia(-0.82+i*0.18,y*exp(i*x)) with
> my software, and Mathematica draws julia(-0.82+i*0.18,x+i*y).
>
> I don't know if there is this kind of transform in Mathematica?
>
> Maybe someone of you all, can help?...
>
> Merry Christmas.

Here is a video from Julia subset drawn with my Eureka 2.12 soft:

It is using the ARAnyM GNU/GPL ATARI virtual machine under macOS.

Happy New Year.

Best regards,

--

Author of Eureka 2.12 (2D Graph Describer, 3D Modeller)
http://eureka.atari.org/
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