Install giac-doc by entering the following commands in the terminal:
sudo apt update sudo apt install giac-doc
Description:
Computer Algebra System - documentation
Giac is a computer algebra system, following the development of the CAS for HP calculators. It has fast implementation of algorithms for polynomial operations, and compatibility mode with Maple or Mupad CAS as well as TI calculators. . This package contains static user documentation for giac and xcas.
Homepage: http://www-fourier.ujf-grenoble.fr/~parisse/giac.html
Version: 1.2.3.57+dfsg1-2build3
Section: universe/doc