SAGEMATH It is an open source Mathematics software created by people who use it everyday. It is developed by mathematician doing research in math at universities. It is good because it is totally free, not like Mathematica which is expensive and closed source. Closed source means you don't have an idea of their working and you can not modify them. As Mathematica is very expensive, it is a real issues for the universities and for the developing countries to buy their licenses and install to teach to the students or to use it in research. No doubt SAGEMATH is playing a huge role in this aspect and that's the reason SAGEMATH is rapidly expanding. Download: http://www.sagemath.org/download.html Installation of SAGEMATH: Please follow the following links for the installation. http://doc.sagemath.org/html/en/installation/ Several packages has been installed during SAGEMATH installation. alabaster-0.7.12.tar.gz appnope-0.1.0.tar.gz arb-2.16.0.tar.gz Babel-2.6.0.tar.gz back