atanh.c File Reference

#include "../math.h"

Functions
double	atanh (double x)
	Compute area hyperbolic tangent. More...

Function Documentation

atanh()

double atanh

(

double

x

)

Compute area hyperbolic tangent.

The atanh functions compute the arc hyperbolic tangent of x. A domain error occurs for arguments not in the interval [−1, +1]. A pole error may occur if the argument equals −1 or +1.

Parameters

x	Value whose area hyperbolic tangent is computed, in the interval [-1,+1].

Returns

The atanh functions return artanh x.