---
page_title: signum function reference
description: The `signum` function determines the sign of a number. 
---

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> [!IMPORTANT]  
> **Documentation Update:** Product documentation previously located in `/website` has moved to the [`hashicorp/web-unified-docs`](https://github.com/hashicorp/web-unified-docs) repository, where all product documentation is now centralized. Please make contributions directly to `web-unified-docs`, since changes to `/website` in this repository will not appear on developer.hashicorp.com.
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# `signum` Function

`signum` determines the sign of a number, returning a number between -1 and
1 to represent the sign.

## Examples

```shell-session
> signum(-13)
-1
> signum(0)
0
> signum(344)
1
```
