packer-cn/website/content/docs/templates/hcl_templates/functions/numeric/signum.mdx

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

# `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
```