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Inverse Function

Given a Function $f(x)$, its inverse $f^{-1}(x)$ is defined by $f(f^{-1}(x)) \equiv x$. Therefore, $f(x)$ and $f^{-1}(x)$ are reflections about the line $y = x$.




© 1996-9 Eric W. Weisstein
1999-05-26