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

[discrete]
[[esql-cosh]]
=== `COSH`

*Syntax*

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

*Parameters*

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

*Supported types*

include::types/cosh.asciidoc[]

*Description*

Returns the https://en.wikipedia.org/wiki/Hyperbolic_functions[hyperbolic
cosine].

*Example*

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