GeoGebra - Dynamic Mathematics for Everyone
http://www.geogebra.org/

The software GeoGebra is licensed under GNU GPL v3 (or later).
However, as part of this SVN repository you will also find libraries 
and plug-in files that are subject to other licenses.
For details please read on and see the file LICENSE.txt

Libraries used by GeoGebra:
* MathPiper, http://www.mathpiper.org/ (GPL)
* Reduce, http://reduce-algebra.sourceforge.net/ (BSD)
* The Apache Commons Mathematics Library, 
  http://commons.apache.org/math/ (Apache Software License)
* FreeHEP Java Libraries, http://java.freehep.org (LGPL)
* EPS Graphics, http://epsgraphics.sf.net (GPL)
* JLaTeXMath, http://forge.scilab.org/index.php/p/jlatexmath/ (GPL)
* JUNG, http://jung.sourceforge.net (BSD)
* Tango Icon Gallery, http://tango.freedesktop.org (Public Domain)
* Maxima, http://maxima.sourceforge.net/ (GPL)
* JSXGraph, http://jsxgraph.org/ (LGPL)

For other tools used for running or building GeoGebra please see
http://www.geogebra.org/trac/wiki/SourcesForUsedLibraries