Rocs is a Graph Theory IDE for designing and analyzing graph algorithms.
Gaphor
Gaphor is a UML and SysML modeling application written in Python. It is designed to be easy to use, while still being powerful
AlphaPlot
AlphaPlot bernameyek komputerê ya çavkaniyek vekirî ye ji bo grafikên zanistî yên înteraktîf û analîzkirina daneyan. Ew dikare ji daneyên ku ji pelên ASCII têne derxistin, bi destan an jî bi karanîna formulan ve têne veguheztin celebên xêzên 2D û 3D (wek rêz, belav, bar, pie, û nexşeyên rûkal) çêbike.
PSPP
GNU PSPP is a program for statistical analysis of sampled data.
KmPlot
KmPlot is a program to plot graphs of functions, their integrals or derivatives.