inverse function

名词 n.

英文释义

名词 n.
  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.
    — Halving is the inverse function of doubling.

词形变化

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