The Euler Mathematical Toolbox is an open software for numerical and symbolic computations. (ZPL)

Extrema is a powerful visualization and data analysis tool that enables researchers to quickly distill their large, complex data sets into meaningful information. (GPL)

Graph visualization is a way of representing structural information as diagrams of abstract graphs and networks. (CPL)

K3DSurf is a program to visualize and manipulate Mathematical models in three, four, five and six dimensions. (GPL)

Kst is the fastest real-time large-dataset viewing and plotting tool available and has basic data analysis functionality. (GPL)

LabPlot is a KDE application for data plotting and function analysis. (GPL)

The project purpose is working out of free software QSpider for modelling mechanical systems (robots, mechanisms of parallel kinematics). (GPL)

The Tonatiuh project aims to create an open source, cutting-edge, accurate, and easy to use Monte Carlo ray tracer for the optical simulation of solar concentrating systems. (GPL)

Tulip is a software for visualisation of huge graphs. (GPL)