asec.c File Reference

Inverse secant function. More...

#include "prim.h"

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Functions
double	asec (double x)
	Inverse secant function. More...

Detailed Description

Inverse secant function.

Definition in file asec.c.

Function Documentation

asec()

double asec

(

double

x

)

Inverse secant function.

Method
    arcsec(x) = arccos(1/x)

Definition at line 45 of file asec.c.

References acos().

Referenced by RealNumber::ArcSecant().

{
    double a = 1.0 / x;
    double b = acos(a);
    return b;
}

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