atanhl.c File Reference

#include "../math.h"

Functions
long double	atanhl (long double x)
	Compute area hyperbolic tangent. More...

Function Documentation

atanhl()

long double atanhl

(

long double

x

)

Compute area hyperbolic tangent.

The atanhl 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 atanhl functions return artanh x.