Topic summary
Partial inverse
Extracted from the Wikipedia article Inverse function.
Partial inverses
Even if a function f is not one-to-one, it may be possible to define a partial inverse of f by restricting the domain. For example, the function
Topic summary
Extracted from the Wikipedia article Inverse function.
Even if a function f is not one-to-one, it may be possible to define a partial inverse of f by restricting the domain. For example, the function