prim.h File Reference

Primitives in math library for handling complex numbers. More...

#include "../mathr.h"
#include "../mathi.h"

Include dependency graph for prim.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Functions
void	cchsh (double x, double *c, double *s)
	Calculate cosh and sinh. More...

Detailed Description

Primitives in math library for handling complex numbers.

Definition in file prim.h.

Function Documentation

cchsh()

void cchsh	(	double	x,
		double *	c,
		double *	s
	)

Calculate cosh and sinh.

Definition at line 197 of file prim.c.

References cosh(), exp(), fabs(), and sinh().

Referenced by ccos(), ccosh(), csin(), and csinh().

{
    double e, ei;

    if (fabs(x) <= 0.5)
    {
        *c = cosh(x);
        *s = sinh(x);
    }
    else
    {
        e = exp(x);
        ei = 0.5 / e;
        e = 0.5 * e;
        *s = e - ei;
        *c = e + ei;
    }
}

Here is the call graph for this function:

Here is the caller graph for this function: