GANG Software Suite
- http://www.gang.umass.edu/software/
- A set of mathematical environments for computing, visualizing and experimenting with geometric objects; built with the OpenGL/Mesa library and the GTK+ user interface.
GEUP - Interactive Geometry software.
- http://www.geup.net
- GEUP is an interactive geometry tool. Lets you dynamically explore Mathematics, build mathematical models of real world or create interactive mathematics presentations.
Home Page of Isard
- http://www.jeannot.org/~js/isard/
- A free dynamic geometry package for Windows, PowerMac and Linux. Like Cabri, but in Smalltalk (and smaller). Source available : you can extend it as needed !
Polyhedron
- http://www.geocentral.net/polyhedron
- Interactive application for solid geometry with 250 built-in problems. Simulates ruler, compass, protractor and other tools. Solids can be cut, displayed differently, rotated, joined again.
The Geometer's Sketchpad Resource Center
- http://www.keypress.com/sketchpad
- This Resource Center supports users of The Geometer's Sketchpad "Dynamic Geometry" software. Contents include a freely-downloadable demo and Java versions; research bibliography; online activity guide; technical support center.