Surjective function

A surjective function frae domain X tae codomain Y. The function is surjective acause every pynt in the codomain is the value o f(x) for at least ane pynt x in the domain.

In mathematics, a function f frae a set X tae a set Y is surjective (or ontae), or a surjection, if every element y in Y haes a correspondin element x in X such that f(x) = y. The function f mey cairt mair nor ane element o X tae the same element o Y.