From the Homepage: Lybniz is an easy to use mathematical function graph plotter using pyGTK. The project was started by Thomas Führinger. It is now also worked on by Sam Tygier.
Created attachment 144200 [details] lybniz-1.3.2.ebuild This ebuild works on my x86 system.
Created attachment 144202 [details] lybniz-1.3.2.ebuild Sorry, corrected license to BSD
Hi Luca I just committed your ebuild to the main tree. Thanks for your contribution!