# \omega

The ω symbol (Greek small letter omega, U+03C9), written as \omega in LaTeX math mode.

https://texform.dev/latex/symbols/omega

## Metadata

| Field | Value |
| --- | --- |
| Topic | [Greek letters](https://texform.dev/latex/topics/greek) |
| Packages | base |
| Allowed mode | math |
| Glyph | ω |
| Unicode | U+03C9 GREEK SMALL LETTER OMEGA |
| Delimiter | No |

## Syntax

```latex
\omega
```

Takes no arguments.

## Common tasks

### How to write a small omega

```latex
\omega
```

[Open in Playground](https://play.texform.dev/?input=%5Comega)

### How to write an angular frequency

```latex
\omega=2\pi f
```

[Open in Playground](https://play.texform.dev/?input=%5Comega%3D2%5Cpi+f)

### How to write a differential solid angle

\omega is the small letter; \Omega is uppercase.

```latex
d\Omega = \sin\theta\,d\theta\,d\phi
```

[Open in Playground](https://play.texform.dev/?input=d%5COmega+%3D+%5Csin%5Ctheta%5C%2Cd%5Ctheta%5C%2Cd%5Cphi)

## Usage frequency

5.41% of formulas in the measured corpus contain this entry, rank 19 of 474 entries with frequency data.

## In TeXForm

TeXForm parses this entry as a character leaf mapped to U+03C9 (GREEK SMALL LETTER OMEGA).