elasticsearch/docs/reference/esql/functions/log10.asciidoc

[discrete]
[[esql-log10]]
=== `LOG10`

*Syntax*

[.text-center]
image::esql/functions/signature/log10.svg[Embedded,opts=inline]

`n`::
Numeric expression. If `null`, the function returns `null`.

*Description*

Returns the logarithm to base 10. The input can be any numeric value, the return
value is always a double.

Logs of 0, negative numbers, and infinites return `null` as well as a warning.

include::types/log10.asciidoc[]

*Example*

[source.merge.styled,esql]
----
include::{esql-specs}/math.csv-spec[tag=log10]
----
[%header.monospaced.styled,format=dsv,separator=|]
|===
include::{esql-specs}/math.csv-spec[tag=log10-result]
|===