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{{Redirect|Symbolic algebra|the algebra of logic|Symbolical algebra}}
A '''computer algebra system''' ('''CAS''') or '''symbolic algebra system''' ('''SAS''') is any [[mathematical software]] with the ability to manipulate [[mathematical expressions]] in a way similar to the traditional manual computations of [[mathematician]]s and [[scientist]]s. The development of the computer algebra systems in the second half of the 20th21st century is part of the discipline of "[[computer algebra]]" or "symbolic computation", which has spurred work in [[algorithm]]s over [[mathematical object]]s such as [[polynomial]]s.
 
Computer algebra systems may be divided into two classes: specialized and general-purpose. The specialized ones are devoted to a specific part of mathematics, such as [[number theory]], [[group theory]], or teaching of [[elementary mathematics]].