DragMath is licensed under the GNU General Public License (GPL) (http://www.gnu.org/copyleft/gpl.html)
All source code in this package is written by Alex Billingsley except the libraries used. The copyright information for the libaries is included below:
JDOM is available under an Apache-style open source license, with the acknowledgment clause removed. This license is among the least restrictive license available, enabling developers to use JDOM in creating new products without requiring them to release their own products as open source. This is the license model used by the Apache Project, which created the Apache server. The license is available at the top of every source file and in LICENSE.txt in the root of the distribution.
JEP is licensed under the GNU General Public License (GPL) (http://www.gnu.org/copyleft/gpl.html)
Icons used in software, license found at; http://www.glyfx.com/license-toolbar.html