Maxima Alternatives [Page 2]

Xcos is a graphical editor to design hybrid dynamical systems models.

FriCAS is the name of an advanced and professional level of computer algebra system for the mathematicians, scientists, and engineers.

GeoGebra is free and multi-platform dynamic mathematics software for learning and teaching.

Open Source

Documentation has been migrated to doxygen. A number of improvements have been made to the JIT back end. 64-bit on all platforms! It's not a long list, but given the nearly 2 years since the last release, 4.

R is a free software environment for statistical computing and graphics.

Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.

Open Source

WolframAlpha brings expert-level knowledge and capabilities to the broadest possible range of people—spanning all professions and education levels.

Computations in Commutative Algebra

PARI/GP is a widely used computer algebra system designed for fast computations in number theory - factorizations, algebraic number theory, elliptic curves, modular forms, L functions..

Macaulay2 is a software system devoted to supporting research in algebraic geometry and commutative algebra, whose creation has been funded by the National Science Foundation since 1992.

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

AnyLogic has changed simulation modeling and expanded its application into complex business environments. The unmatched flexibility of multimethod modeling allows users to capture the complexity of virtually any system, at any level of detail.

freemium

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