What does surjection mean?
A surjection is a surjective function, which is a function from one set to another that maps at least one element of the domain to every element of the codomain. In other words, every element in the codomain is the image of at least one element in the domain.
Example
"The function f(x) = x^2 is a surjection from the set of real numbers to the set of non-negative real numbers."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.