From Newsgroup: comp.sys.atari.st

Hi,
Here is also <https://eureka.atari.org/seashell3D.gif> surface.
Francois LE COAT writes:

Here are two surfaces from Eureka 2.12 rotating in space...

<https://eureka.atari.org/bretzel3D.gif> the Bretzel surface <https://eureka.atari.org/spirale3D.gif> the Archimedean spiral

These are two surfaces from Eureka 2.12, but they are represented
in space using MathMod 12.1. MathMod can be found here:

<https://github.com/parisolab/mathmod/releases/tag/12.1>

I recommend it to you. Most of what can be done with MathMod can
be done with Eureka 2.12, and vice versa. It's fun!

Enjoy it's yours =)
--
Frantois LE COAT
Author of Eureka 2.12 (2D Graph Describer, 3D Modeller) https://eureka.atari.org/
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