Package mathomatic

Small, portable symbolic math program

http://www.mathomatic.org/math/

Mathomatic is a small, portable symbolic math program that can
automatically solve, simplify, differentiate, combine, and compare
algebraic equations, perform polynomial and complex arithmetic,
etc. It was written by George Gesslein II and has been under
development since 1986.

General Commands (Section 1)
mathomatic
Mathomatic is a general-purpose computer algebra system (CAS) that can symbolically solve, simplify, combine, and compare algebraic equations, perform standard...
rmath
Mathomatic is a general-purpose computer algebra system (CAS) that can symbolically solve, simplify, combine, and compare algebraic equations, perform standard...