Mathomatic is a free, portable, general-purpose Computer Algebra System (CAS) that can automatically solve, differentiate, simplify, combine, and compare algebraic equations, perform standard, complex number, and polynomial arithmetic, etc. It does some calculus and is very easy to learn and use.

Mathomatic is an easy-to-use and colorful algebra calculator that can symbolically:
1. combine and solve equations containing many variables,
2. totally simplify and compare mathematical expressions and equations,
3. do simple calculus transformations and series,
4. perform quick real number, complex number, and polynomial arithmetic,
5. generate efficient C, Java, or Python language code from simplified equations,
6. plot expressions with gnuplot in two or three dimensions,

The name "Mathomatic" is a portmanteau of "math" and "automatic". It is a unique computer algebra system (CAS), in that all constants are one or more floating point values. All numeric arithmetic is IEEE standard floating point arithmetic, which most computers do very quickly. Mathomatic is written entirely in C, which is like a CAS written in assembly language, running as fast as the computer allows without any high-level language overhead.

Mathomatic is exceptionally good at solving, differentiating, simplifying, and calculating elementary algebra. It is designed with a simple command-line interface (CLI) that tries to be helpful. All input and output is line at a time ASCII text. By default, input is standard input and output is standard output.

The license of this software is Free, you can free download and free use this calculator software.