What is Operation (mathematics)?
In [[mathematics]], an '''operation''' is a [[Function (mathematics)|function]] which takes one or more inputs (named [[operand]]s) and produces an output. Common operations are [[#Addition|addition]], [[#Subtraction|subtraction]], [[#Multiplication|multiplication]] and [[#Division|division]],<ref>{{Cite web|title=Definition of Operation (Illustrated Mathematics Dictionary)|url=http://mathisfun.com/definitions/operation|access-date=2021-10-21|website=mathisfun.com|language=en-US}}</ref><ref>{{Cite web|title=Order of Operations|url=http://mathisfun.com/operation-order-pemdas|access-date=2021-11-21|website=mathisfun.com|language=en-US}}</ref> all of which take two inputs and produce an output. These are called [[binary operation]]s<ref>{{Cite web|last=Weisstein|first=Eric W.|title=Binary Operation|url=https://mathworld.wolfram.com/BinaryOperation.html|access-date=2020-08-26|website=mathworld.wolfram.com|language=en-US}}</ref><ref>{{Cite web|title=Definition of Binary Operation (Illustrated Mathematics Dictionary)|url=http://mathisfun.com/definitions/binary-operation|access-date=2021-11-21|website=mathisfun.com|language=en-US}}</ref> and are frequently used when [[:wikt:solve|solving]] math [[:wikt:problem|problem]]s. Other kinds of operations are named [[unary operation]]s,<ref>{{Cite web|title=Definition of Unary Operation (Illustrated Mathematics Dictionary)|url=http://mathisfun.com/definitions/unary-operation|access-date=2021-11-21|website=mathisfun.com|language=en-US}}</ref> which take only one input and produce an output. There are more operations than these, including raising numbers to [[#Exponentiation|exponents]], taking the [[#Roots|root]] and applying the [[#Logarithm|logarithm]]. Below is a list of the most useful operations. == List of mathematical operations == === Addition === [[Addition]] is the first [[arithmetic]] operation and [[hyperoperation]]. It is the [[inverse operation]] of [[#Subtraction|subtraction]]. The terms in an addition are named ''addends'', and the result of an addition is na