Question

Define composition of functions​

Answer 1

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.

Answer 2

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,