domain

Definition

The domain is the set of all values that can be input into a function.

Related

codomain

Notation

Set Builder

$$f:X\in \mathbb{R}|X\ge 0\to \mathbb{R}$$

Interval

$$f:\text{[}0,\infty )\to \mathbb{R}$$

Arrow Notation

$$f:\mathbb{R}\to \mathbb{R}$$