Difference between revisions of "Idempotence"
(New page: A function <math>f</math> is idempotent if <math>f(x)=f(f(x))</math>. == Examples == * Any constant function is idempotent. * The function <math>f(x)=x</math> is idempotent. * The [[signu...) |
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* The [[absolute value]] function is idempotent. | * The [[absolute value]] function is idempotent. | ||
* The [[greatest integer function]] is idempotent, as is the least integer function. | * The [[greatest integer function]] is idempotent, as is the least integer function. | ||
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Latest revision as of 17:49, 27 September 2008
A function 
is idempotent if 
.
Examples
- Any constant function is idempotent.
- The function
is idempotent. - The signum function is idempotent.
- The absolute value function is idempotent.
- The greatest integer function is idempotent, as is the least integer function.
is idempotent.This article is a stub. Help us out by expanding it.
