inverse function

inverse function

n. Mathematics

A function whose relation to a given function is such that their composite is the identity function. It is often found by interchanging dependent and independent variables.

Thesaurus

Noun

1.

inverse function - a function obtained by expressing the dependent variable of one function as the independent variable of another; f and g are inverse functions if f(x)=y and g(y)=x function, mapping, mathematical function, single-valued function, map - (mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)