# \int

The ∫ symbol (Integral, U+222B), written as \int in LaTeX math mode.

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

## Metadata

| Field | Value |
| --- | --- |
| Topic | [Big operators](https://texform.dev/latex/topics/big-operators) |
| Packages | base |
| Allowed mode | math |
| Glyph | ∫ |
| Unicode | U+222B INTEGRAL |
| Delimiter | No |

## Syntax

```latex
\int
```

Takes no arguments.

## Common tasks

### How to write an integral

```latex
\int f(x)\,dx
```

[Open in Playground](https://play.texform.dev/?input=%5Cint+f%28x%29%5C%2Cdx)

### How to write a definite integral

```latex
\int_a^b f(x)\,dx
```

[Open in Playground](https://play.texform.dev/?input=%5Cint_a%5Eb+f%28x%29%5C%2Cdx)

### How to write a double integral

```latex
\iint_D f\,dA
```

[Open in Playground](https://play.texform.dev/?input=%5Ciint_D+f%5C%2CdA)

### How to force side limits on an integral

```latex
\int\nolimits_a^b f(x)\,dx
```

[Open in Playground](https://play.texform.dev/?input=%5Cint%5Cnolimits_a%5Eb+f%28x%29%5C%2Cdx)

## Usage frequency

11.17% of formulas in the measured corpus contain this entry, rank 3 of 474 entries with frequency data.

## In TeXForm

TeXForm parses this entry as a character leaf mapped to U+222B (INTEGRAL).