Letter-like symbols\infty

\inftySymbol

The ∞ symbol (Infinity, U+221E), written as \infty in LaTeX math mode.

\infty

Topic: Letter-like symbols
Available in: base
Allowed mode: math
Frequency: 7.92% of corpus formulasrank 9 of 474
Glyph: ∞
Unicode: U+221E · INFINITY

Common tasks#

How to write infinity#

\infty

How to write an integral over the line#

\int_{-\infty}^{\infty} f(x)\,dx

How to write a limit at infinity#

\lim_{x\to\infty} f(x)

In TeXForm#

TeXForm parses this entry as a character leaf mapped to U+221E (INFINITY).

See also#

\backslash base
\lnot base
\neg base

In Letter-like symbols61

All 61 in Letter-like symbols