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

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---
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
```