csch.c File Reference

Hyperbolic cosecant function. More...

#include "prim.h"

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Functions
double	csch (double x)
	Hyperbolic cosecant function. More...

Detailed Description

Hyperbolic cosecant function.

Definition in file csch.c.

Function Documentation

csch()

double csch

(

double

x

)

Hyperbolic cosecant function.

csch(x) = 1/sinh(x)

Definition at line 44 of file csch.c.

References sinh().

Referenced by RealNumber::HypCosecant().

{
    double a = sinh(x);
    if (TRIG_INEXACT(a))
    {
        return NAN;
    }
    return 1.0 / a;
}

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