units.h File Reference

#include <config.h>
#include <cmath>
#include "units_scales.h"

Go to the source code of this file.

Macros
#define	MU0   12.566370614e-7
#define	C0   299792458.0
#define	ZF0   376.730313668

Functions
double	asinh (double x)
double	acosh (double x)
double	atanh (double x)

Macro Definition Documentation

C0

#define C0   299792458.0

Definition at line 61 of file units.h.

MU0

#define MU0   12.566370614e-7

Definition at line 60 of file units.h.

ZF0

#define ZF0   376.730313668

Definition at line 62 of file units.h.

Function Documentation

acosh()

double acosh ( double  x )

inline

Definition at line 40 of file units.h.

{
 // must be x>=1, if not return Nan (Not a Number)
 if( x < 1.0 ) return sqrt( -1.0 );
 
 // return only the positive result (as sqrt does).
 return log( x+sqrt( x*x-1.0 ) );
}

Referenced by TWISTEDPAIR::calcAnalyze(), C_MICROSTRIP::syn_err_fun(), and C_MICROSTRIP::synth_width().

asinh()

double asinh ( double  x )

inline

Definition at line 33 of file units.h.

{
 return log( x+sqrt(x*x+1) );
}

atanh()

double atanh ( double  x )

inline

Definition at line 51 of file units.h.

{
 // must be x>-1, x<1, if not return Nan (Not a Number)
 if( !(x>-1.0 && x<1.0) ) return sqrt( -1.0 );
 
 return log( (1.0+x)/(1.0-x) ) / 2.0;
}

Referenced by MICROSTRIP::delta_Z0_cover(), and C_MICROSTRIP::delta_Z0_even_cover().