Question

what is composition function ​

Answer 1

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In mathematics, function composition is an operation that takes two functions f and g and produces a function h such that h(x) = g(f(x)). Intuitively, composing functions is a chaining process in which the output of function f feeds the input of function g.

Answer 2

In mathematics, function composition is an operation that takes two functions f and g and produces a function h such that h(x) = g(f(x)). ... The resulting composite function is denoted g ∘ f : X → Z, defined by (g ∘ f )(x) = g(f(x)) for all x in X.

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