Eigenmath DS is a free computer algebra system for Nintendo DS. The aim of this project is to have a free CAS comparable to commercial systems such as Texas Instruments or HP calculators. The system was designed for the manipulation of symbolic algebraic expressions.

Thanks to the author himself for letting us know about this new release ( //phpbb/viewtopic.php?f=6&t=2889 ).

http://eigenmatds.sourceforge.net/