Yacas

Yacas as a TeXmacs session
Developer(s)	Ayal Z. Pinkus, Serge Winitzki et al.
Initial release	1999; 25 years ago (1999)[1]
Stable release	1.9.1 / 4 July 2020; 4 years ago (2020-07-04)
Repository	github.com/grzegorzmazur/yacas
Written in	C++
Operating system	Cross-platform
Type	Computer algebra system
License	LGPLv2.1+
Website	www.yacas.org

Yacas /ˈjækəs/ is a general-purpose computer algebra system. The name is an acronym for Yet Another Computer Algebra System.

Released under the GNU Lesser General Public License, Yacas is free software.

YACAS is a program for symbolic manipulation of mathematical expressions. It uses its own programming language designed for symbolic as well as arbitrary-precision numerical computations. The system has a library of scripts that implement many of the symbolic algebra operations; new algorithms can be easily added to the library. YACAS comes with extensive documentation covering the scripting language, the functionality that is already implemented in the system, and the algorithms used. Its development started in early 1999.^[1]

Yacas handles input and output in plain ASCII or in OpenMath, either interactively or in batch mode.

• Comparison of computer algebra systems

• Filip, Xenia; Filip, Claudiu (2010). "SD-CAS: Spin Dynamics by Computer Algebra System". Journal of Magnetic Resonance. 207 (1). Elsevier: 95–113. Bibcode:2010JMagR.207...95F. doi:10.1016/j.jmr.2010.08.014. PMID 20843716.
• Goguadze, George (2009). "Semantic Evaluation Services for Web-Based Exercises". Advances in Web Based Learning – ICWL 2009. Lecture Notes in Computer Science. Vol. 5686. Springer. pp. 172–181. Bibcode:2009LNCS.5686..172G. doi:10.1007/978-3-642-03426-8_22. ISBN 978-3-642-03425-1.

• Official website
• yacas on GitHub
• Mathpiper A fork of Yacas in Java.