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Unary operation - Wikipedia

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In mathematics, a unary operation is an operation with only one operand, i.e. a single input.[1] This is in contrast to binary operations, which use two operands.[2] An example is any function f : A → A, where A is a set. The function f is a unary operation on A. Common notations are prefix notation (e.g. ¬, −), postfix notation (e.g. factorial n!), functional notation (e.g. sin x or sin(x)), and superscripts (e.g. transpose AT). Other notations exist as well, for example, in the case of the square root, a horizontal bar extending the square root sign over the argument can indicate the extent of the argument. Obtaining the absolute value of a number is a unary operation. This function is defined as | 𝑛 | = { 𝑛 , if 𝑛 ≥ 0 − 𝑛 , if 𝑛 < 0 where | 𝑛 | is the absolute value of 𝑛 . This is used to find the negative value of a single number. Here are some examples: For any positive integer n, the product of the integers less than or equal to n is a unary operation called f

Unary operation - Wikipedia Jump to content From Wikipedia, the free encyclopedia Mathematical operation with only one operand This article needs more citations . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . Find sources: "Unary operation" – news · newspapers · books · scholar · JSTOR ( March 2010 ) ( Learn how and when to remove this message ) In mathematics , a unary operation is an operation with only one operand , i.e. a single input. [ 1 ] This is in contrast to binary operations , which use two operands. [ 2

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