# ATAN

Returns the arc tangent of **x**.

## Syntax

```sql

ATAN (x)

```

## Arguments

* x: the argument

## Return Type

Float or double.

## Examples

```sql
SELECT ATAN(1);

```

```output

+--------------------+
| ATAN(1)            |
+--------------------+
| 0.7853981633974483 |
+--------------------+

```

***

Modified at: February 24, 2023

Source: [/db/v9.1/reference/sql-reference/numeric-functions/atan/](https://docs.singlestore.com/db/v9.1/reference/sql-reference/numeric-functions/atan/)

(An index of the documentation is available at /llms.txt)