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Geometry Expert 
Summary
Geometry Expert (GEX) is a Chinese software package for dynamic diagram drawing and automated geometry theorem proving and discovering.
There's a new Chinese version of Geometry Expert, called MMP/Geometer.
Java Geometry Expert is free under GNU General Public License.
External links edit
- GEX Official website
- Java GEX (old, new) on Wichita State University
- Java GEX Documentation[permanent dead link] on Wichita State University