Difference between revisions of "Fixed point"

 
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A '''fixed point''' of a [[function]], [[permutation]] or other such operator <math>f</math> is a value <math>x</math> such that <math>f(x) = x</math>, i.e. <math>f</math> acts like the [[identity]] at <math>x</math>.
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A '''fixed point''' of a [[function]], [[permutation]] or other such operator <math>f</math> on a value <math>x</math> such that <math>f(x) = x</math>, i.e. <math>f</math> acts like the [[identity]] at <math>x</math>.
  
 
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Revision as of 10:22, 20 April 2008

A fixed point of a function, permutation or other such operator $f$ on a value $x$ such that $f(x) = x$, i.e. $f$ acts like the identity at $x$.

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