inverse function
If a function \(f\) is an injection (i.e., one-to-one) then it has an inverse denoted \(f^{-1}\) that is defined by
\[x=f^{-1}(y) \,\,\Leftrightarrow \,\, y=f(x)\]
See the function article for a complete exposition.
If a function \(f\) is an injection (i.e., one-to-one) then it has an inverse denoted \(f^{-1}\) that is defined by
\[x=f^{-1}(y) \,\,\Leftrightarrow \,\, y=f(x)\]
See the function article for a complete exposition.