Since May 15 2010 MathGraph32 is free under GNU GPL license Version 3 licence GNU GPL 3.
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.
The JavaScipt version of MathGraph32 is under GNU APGL version 3 or higher.
The sources are above.
MathGraph32 uses a Library free under GNU GPL licence (version 2 ot higher) written by Calixte Denizet.
A link to the JLatexmath website : http://forge.scilab.org/index.php/p/jlatexmath/