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Developer(s)Bernard Parisse
Initial release2000; 18 years ago (2000)
Stable release
1.4.9-45 / January 2018 (2018-01)
Repository Edit this at Wikidata
Written inC++
Operating systemWindows, macOS, Linux
TypeComputer algebra system
LicenseGNU GPL

Xcas is a user interface to Giac, a free, basic Computer Algebra System (CAS) for Microsoft Windows, Apple macOS and Linux/Unix. Giac can be used directly inside software written in C++.

Giac has a compatibility mode with Maple and MuPAD and Qcas and ExpressionsinBar software and TI-89, TI-92, Voyage 200 and TI-Nspire calculators. Users can use Giac/Xcas as well as a free software compatible with Maple to develop formal algorithms or use it in other software. Among other things Xcas can solve equations and draw graphs.

CmathOOoCAS, an OpenOffice.org plugin which allows formal calculation in Calc spreadsheet and Writer word processing, uses Xcas to perform calculations.


Here is a brief overview of what Xcas is able to do:


Xcas and Giac are open-source projects developed by Bernard Parisse's et al. at the Joseph Fourier University of Grenoble (Isère), France, since 2000. It is based on experiences gained with Parisse's former project Erable.

Pocket CAS and CAS Calc P11 utilize Giac. In 2013, it was also integrated into GeoGebra's CAS view.

The system was also chosen by Hewlett-Packard as the CAS for their HP Prime calculator, which utilizes the Giac/Xcas 1.4.9 engine under a dual-license scheme.

See also[edit]

Further reading[edit]

  • De Graeve, Renée (2018-01-19) [2013]. "Symbolic computation and Mathematics with the calculator HP Prime" (PDF). Translated by Lecointre, Jean Michel. Retrieved 2018-01-22.

External links[edit]