SageMath: Open Source Mathematical Software

SageMath is a free open-source mathematics software system licensed under the GPL. It builds on top of many existing open-source packages: NumPy, SciPy, matplotlib, Sympy, Maxima, GAP, FLINT, R and many more. Access their combined power through a common, Python-based language or directly via interfaces or wrappers.

Mission

Creating a viable free open source alternative to Magma, Maple, Mathematica and Matlab.

License

The whole Sage software distribution is licensed under the General Public License, version 3 (no other versions!).