docs/content/en/functions/math/Atan.md


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---
title: math.Atan
description: Returns the arctangent, in radians, of the given number.
categories: []
keywords: []
params:
  functions_and_methods:
    aliases: []
    returnType: float64
    signatures: [math.Atan VALUE]
---

{{< new-in 0.130.0 />}}

```go-html-template
{{ math.Atan 1 }} → 0.7853981633974483
```