In mathematics, a unary operation is an operation with only one operand, i.e. a single input. Specifically, it is a function
where A is a set. In this case f is called an unary operation on A.
Common notations are prefix notation (e.g. +, −, not), postfix notation (e.g. factorial: n!), functional notation (e.g. sin x or sin (x)), and superscripts (e.g. transpose AT). Other notation exists as well, for example in the case of the square root a horizontal bar over the argument extending the square root sign can indicate the extent of the argument.
Read more about Unary Operation: Unary Negative and Positive
Famous quotes containing the word operation:
“It requires a surgical operation to get a joke well into a Scotch understanding. The only idea of wit, or rather that inferior variety of the electric talent which prevails occasionally in the North, and which, under the name of “Wut,” is so infinitely distressing to people of good taste, is laughing immoderately at stated intervals.”
—Sydney Smith (1771–1845)