Based on our record, Mathics seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on Reddit, HackerNews and some other platforms. They can help you identify which product is more popular and what people think of it.
If you want a clone of the Mathematica core language, then there is Mathics: https://mathics.org/. - Source: Reddit / 19 days ago
Maxima - Maxima is a fairly complete computer algebra system written in Lisp with an emphasis on symbolic computation.
WIRIS cas - WIRIS cas is a web-based program for mathematical calculations.
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.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
Sage Math - Sage is a free open-source mathematics software system licensed under the GPL.
SMath Studio - Tiny, powerful, free mathematical program with WYSIWYG editor and complete units of measurements support.