Science

Siegel simulates the action of robots walking by using "genetic programming," which copies natural evolutionary strategies and combines them with the concepts of automatic programming.

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Developer: Sigel
License: GNU General Public License (GPL)
Operating System: All POSIX (Linux/BSD/UNIX-like OSes), Linux, Solaris

Sailcut CAD is a sail design and plotting software.

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Developer: sailcut.com
License: GNU General Public License (GPL)
Operating System: All 32-bit MS Windows (95/98/NT/2000/XP), Linux, OS X