Fixed point (mathematics)
Element mapped to itself by a mathematical function / From Wikipedia, the free encyclopedia
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Fixed points in mathematics are not to be confused with other uses of "fixed point", or stationary points where f'(x) = 0.
In mathematics, a fixed point (sometimes shortened to fixpoint), also known as an invariant point, is a value that does not change under a given transformation. Specifically, for functions, a fixed point is an element that is mapped to itself by the function.