# \Delta

The Δ symbol (Greek capital letter delta, U+0394), written as \Delta in LaTeX math mode.

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

## Metadata

| Field | Value |
| --- | --- |
| Topic | [Greek letters](https://texform.dev/latex/topics/greek) |
| Packages | base |
| Allowed mode | math |
| Glyph | Δ |
| Unicode | U+0394 GREEK CAPITAL LETTER DELTA |
| Delimiter | No |

## Syntax

```latex
\Delta
```

Takes no arguments.

## Common tasks

### How to write a capital delta

```latex
\Delta
```

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

### How to write a Laplacian

```latex
\Delta u = 0
```

[Open in Playground](https://play.texform.dev/?input=%5CDelta+u+%3D+0)

### How to write a finite difference

\Delta is the uppercase letter; \delta is the small letter.

```latex
\Delta x = x_{n+1}-x_n
```

[Open in Playground](https://play.texform.dev/?input=%5CDelta+x+%3D+x_%7Bn%2B1%7D-x_n)

## Usage frequency

5.28% of formulas in the measured corpus contain this entry, rank 21 of 474 entries with frequency data.

## In TeXForm

TeXForm parses this entry as a character leaf mapped to U+0394 (GREEK CAPITAL LETTER DELTA).