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Adding local short description: "Function that takes one argument", overriding Wikidata description "function that takes one argument. In computer science, a unary operator is a subset of unary function" |
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{{Short description|Function that takes one argument}}
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In [[mathematics]], a '''unary function''' is a [[function (mathematics)|function]] that takes one [[Arity|argument]]. A [[unary operator]] belongs to a subset of unary functions, in that its [[codomain]] coincides with its [[___domain of a function|___domain]]. In contrast, a unary function's ___domain need not coincide with its range.
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