> ## Documentation Index
> Fetch the complete documentation index at: https://www.integrate.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# ETL: COSH

> Calculate the hyperbolic cosine of a numeric value in your ETL pipeline. Use COSH for advanced mathematical computations and data transformations.

## Description

Returns the hyperbolic cosine of a number.

## Syntax

`COSH(numeric_expression)`

## Examples

`COSH(0)` returns 1.0.

## Return value datatype

Double

## Impact of null value

If input is null, returns null.