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Gaphor
Gaphor is a UML and SysML modeling application written in Python. It is designed to be easy to use, while still being powerful
PSPP
Mae GNU PSPP yn rhaglen ar gyfer dadansoddiad ystadegol o ddata sampl.
LabPlot
LabPlot is a free software and cross-platform computer program for interactive scientific graphing and data analysis, written for the KDE desktop.
KmPlot
KmPlot is a program to plot graphs of functions, their integrals or derivatives.