---
id: atan
title: atan Function
sidebar_label: atan
slug: /help/docs/search/search-query-language/math-expressions/atan/
canonical: https://www.sumologic.com/help/docs/search/search-query-language/math-expressions/atan/
---

Returns the inverse tangent of the argument.

## Syntax

`atan(<x>) as <field>`

## Example

```sumo
* | atan(1) as v
```