Infinity Symbol

Symbol Format Data
Code Point
U+221E
TeX
\infin
SVG
Symbol Table

Usage

The infinity symbol in math represents the concept of infinity. Typically, the symbol is used in an expression like this:

In plain language, this expression represents the limit of the expression as the variable approaches infinity.

Links

Limit

The limit operator is used to evaluate the behavior of functions and series.

Series

A series is the operation of adding an infinite number expressions together. A series is denoted using the summation operator and the index variable k.