Functions

8.1

Functions

	Definition

	It is the relation in which each object in the domain has only one image in the codomain.

Identifying functions


One-to-one functions		Relation where the object in the domain has only one image

Many-to-one functions		Relation where more than one object is matched to the same image

One-to-many relations		Relation where the object in the domain has more than one image

Many-to-many relations		Relation where at least one object has more than one image, and more than one object has the same image.

8.1.2 Function representation