# Unary Operation

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A Unary Operation is a Formal Operation that requires One Operand.

**AKA:**Formal Unary Operation, Monadic Operation, Unary Expression.**Context:**- It can be represented by a Unary Operator.

**Example(s):****See:**Binary Operation.

## References

### 2009

- (WordNet, 2009) ⇒ http://wordnetweb.princeton.edu/perl/webwn?s=unary%20operation
- S: (n) monadic operation, unary operation (an operation with exactly one operand)

- http://en.wikipedia.org/wiki/Unary_operation
- In mathematics, a
**unary operation**is an operation with only one operand, i.e. an operation with a single input, or in other words, a function of one variable (for the terminology see also operators versus functions). - Common notations are prefix notation (+, −, not), postfix notation (factorial: n!), and functional notation (sin x or sin (x)). 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, so that parentheses can be dispensed with.

- In mathematics, a