terraform/website/docs/language/functions/signum.html.md

---
layout: "language"
page_title: "signum - Functions - Configuration Language"
sidebar_current: "docs-funcs-numeric-signum"
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

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