Package pari-gp

PARI calculator

http://pari.math.u-bordeaux.fr/

PARI/GP is an advanced programmable calculator, which computes
symbolically as long as possible, numerically where needed, and
contains a wealth of number-theoretic functions.

General Commands
Command Description
gp-2.9 The PARI calculator
gphelp GP-PARI online help script
tex2mail TeX to ascii math prettyprinter