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Sphaerica is an interactive spherical geometry computer software. You can create complex geometric constructions in spherical geometry with this software. It supports orthogonal, stereographic and gnomonic projections to display your construction. It also has a built in scripting language for automated constructions.
CaRMetal is a dynamic geometry software : it provides to the teachers and pupils of primary , secondary school and university an environment which allows to investigate, in a interactive way, the geometrical properties of figures.
Geoplan-Geospace is a 2D and 3D interactivegeometry software to create and manipulate interactive figures for eLearning. It features euclidean geometry objects (lines, circles), numerical functions, numerical sequences, geometrical transformations.