Idempotence
Revision as of 17:49, 27 September 2008 by Herefishyfishy1 (talk | contribs)
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.
