terraform/website/docs/language/functions/signum.mdx

---
page_title: signum - Functions - Configuration Language
description: The signum function determines the sign of a number.
---

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> [!IMPORTANT]  
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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

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