inverse function

1. 1.

   For a given function f, another function, denoted f−1, that reverses the mapping action of f; (formally) given a function f:X→Y, a function g:Y→X such that, ∀x∈X,f(x)=y⟹g(y)=x.

   逆转给定函数f映射关系的函数,记作f−1；即对任意x∈X,若f(x)=y则g(y)=x。

反函数

Connections

Learner notes