noun which may take the genitive case particle 'no'
idempotent
Technical term in mathematics and computing describing an operation that yields the same result when applied multiple times.
An idempotent operation produces the same result no matter how many times it is executed.
HTTPのPUTメソッドは冪等であることが求められる。
The HTTP PUT method is required to be idempotent.
idempotence
Compound of 冪 (べき, 'power' in mathematics) and 等 (とう, 'equal'), literally 'power-equal'. The term was coined in mathematics to describe operations where repeated application does not change the result.