SciDaVis - SciDAVis is a free application for Scientific Data Analysis and Visualization.
GnuPlot - Gnuplot is a portable command-line driven interactive data and function plotting utility.
LabPlot - LabPlot is a KDE-application for interactive graphing and analysis of scientific data.
Giac/Xcas - Free computer algebra system
RJS Graph - RJS Graph is an artificial intelligence-based data management platform that allows users or developers to organize the data by manipulating the binaries, scientific, mathematical, and other insights with accurate results.
Geometry Pad - Geometry Pad is a dynamic geometry application for iPad and Android tablets.