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hugo/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: []
action:
aliases: []
related:
- functions/math/Atan2
- functions/math/Asin
- functions/math/Acos
- functions/math/Pi
- functions/math/Sin
- functions/math/Cos
- functions/math/Tan
returnType: float64
signatures: [math.Atan VALUE]
---
{{< new-in 0.130.0 >}}
```go-html-template
{{ math.Atan 1 }} → 0.7853981633974483
```