ES|QL `ATANH` function

Returns the inverse hyperbolic tangent of a number.

Syntax

Parameters

number: Number between -1 and 1. If null, the function returns null.

Description

Returns the inverse hyperbolic tangent of a number.

Supported types

number	result
double	double
integer	double
long	double
unsigned_long	double

Example

		ROW a=0.5
| EVAL atanh=ATANH(a)

a:double	atanh:double
0.5	0.5493061443340548