opentf/website/docs/configuration/functions/signum.html.md

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functions	signum - Functions - Configuration Language	docs-funcs-numeric-signum	The signum function determines the sign of a number.

signum Function

-> Note: This page is about Terraform 0.12 and later. For Terraform 0.11 and earlier, see 0.11 Configuration Language: Interpolation Syntax.

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