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layout, page_title, sidebar_current, description
| layout | page_title | sidebar_current | description |
|---|---|---|---|
| language | log - Functions - Configuration Language | docs-funcs-numeric-log | The log function returns the logarithm of a given number in a given base. |
log Function
-> Note: This page is about Terraform 0.12 and later. For Terraform 0.11 and earlier, see 0.11 Configuration Language: Interpolation Syntax.
log returns the logarithm of a given number in a given base.
log(number, base)
Examples
> log(50, 10)
1.6989700043360185
> log(16, 2)
4
log and ceil can be used together to find the minimum number of binary
digits required to represent a given number of distinct values:
> ceil(log(15, 2))
4
> ceil(log(16, 2))
4
> ceil(log(17, 2))
5