Maxima - Maxima is a fairly complete computer algebra system written in Lisp with an emphasis on symbolic computation.

QtOctave - QtOctave: a front-end for Octave/un Front-End para Octave

Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processing—and gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.

GNU Octave - GNU Octave is a programming language for scientific computing.

MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming

WIRIS cas - WIRIS cas is a web-based program for mathematical calculations.