---
description: "Learn more about: Number.Cos"
title: "Number.Cos"
---
# Number.Cos

## Syntax

<pre>
Number.Cos(<b>number</b> as nullable number) as nullable number
</pre>

## About

Returns the cosine of `number`.

## Example 1

Find the cosine of the angle 0.

**Usage**

```powerquery-m
Number.Cos(0)
```

**Output**

`1`
