elasticsearch/docs/reference/query-languages/esql/_snippets/functions/tanh.md

TANH [esql-tanh]

Syntax

:::{image} ../../../../../images/tanh.svg :alt: Embedded :class: text-center :::

Parameters

number

Numeric expression. If null, the function returns null.

Description

Returns the hyperbolic tangent of a number.

Supported types

number	result
double	double
integer	double
long	double
unsigned_long	double

Example

ROW a=1.8
| EVAL tanh=TANH(a)

a:double	tanh:double
1.8	0.9468060128462683