ccosh.c File Reference

#include "prim.h"
#include "math.h"
#include "complex.h"

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Functions
complex	ccosh (complex z)
	Hyperbolic cosine of a complex number. More...

Function Documentation

complex ccosh

(

complex

z

)

Hyperbolic cosine of a complex number.

Version

1.1

Date

2007/08/20

a+bi
real = cosh(a) * cos(b)
imag = sinh(a) * sin(b)

Definition at line 51 of file ccosh.c.

References cchsh(), cimag(), cos(), cpack(), creal(), and sin().

Referenced by ComplexNumber::HypCosine().

{
    complex w;
    double a, b;
    double ch, sh;

    a = creal(z);
    b = cimag(z);
    cchsh(a, &ch, &sh);
    w = cpack(cos(b) * ch, sin(b) * sh);

    return w;
}

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