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/*
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) 2006-2008 - INRIA - Bruno JOFRET
*
* This file must be used under the terms of the CeCILL.
* This source file is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at
* http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
*
*/
#ifdef __STDC_VERSION__
# ifndef STDC
# define STDC
# endif
# if __STDC_VERSION__ >= 199901L
# ifndef STDC99
# define STDC99
# endif
# endif
#endif
#include "doubleComplex.h"
#ifndef STDC99
/*
** \function zreals
** \brief Return a Complex Real Part .
*/
double zreals(doubleComplex z) {
return z.real;
}
/*
** \function zimags
** \brief Return a Complex Imaginary Part .
*/
double zimags(doubleComplex z) {
return z.imag;
}
#else
/*
** \function zreals
** \brief Return a Complex Real Part .
*/
double zreals(doubleComplex z) {
return creal(z);
}
/*
** \function zimags
** \brief Return a Complex Imaginary Part .
*/
double zimags(doubleComplex z) {
return cimag(z);
}
#endif
/*
** \function creala
** \brief Return a Complex Real Part array.
*/
void zreala(doubleComplex* z, int size, double* out) {
int i = 0;
for (i = 0 ; i < size ; ++i)
{
out[i] = zreals(z[i]);
}
}
/*
** \function cimaga
** \brief Return a Complex Imaginary Part array.
*/
void zimaga(doubleComplex* z, int size, double* out) {
int i = 0;
for (i = 0 ; i < size ; ++i)
{
out[i] = zimags(z[i]);
}
}
/*
** \function DoubleComplex
** \brief construct a Double Complex .
*/
doubleComplex DoubleComplex(double real, double imag) {
doubleComplex z;
#ifndef STDC99
z.real = real;
z.imag = imag;
#else
z = real + I * imag;
#endif
return z;
}
/*
** \function DoubleComplexMatrix
** \brief construct a Double Complex Matrix.
*/
doubleComplex *DoubleComplexMatrix(double* real, double* imag, int size) {
doubleComplex *z = malloc((uint) size * sizeof(doubleComplex));
int i = 0;
for(i = 0; i < size; ++i)
{
z[i] = DoubleComplex(real[i], imag[i]);
}
return z;
}
/*
** \function isreal
** \brief check if complex is real .
*/
bool zisreals(doubleComplex z) {
if (zimags(z) == 0)
return true;
return false;
}
/*
** \function isimag
** \brief check if complex is pure imaginary .
*/
bool zisimags(doubleComplex z) {
if (zreals(z) == 0)
return true;
return false;
}
/*
** Operators
** {
*/
/*
** \function ztimess
** \brief Multiply 2 Complex numbers.
*/
doubleComplex ztimess(doubleComplex z1, doubleComplex z2) {
#ifndef STDC99
return DoubleComplex(z1.real*z2.real - z1.imag*z2.imag,
z1.real*z2.imag + z2.real*z1.imag);
#else
return z1 * z2;
#endif
}
/*
** \function zdivides
** \brief Divide 2 Complex numbers.
*/
doubleComplex zdevides(doubleComplex z1, doubleComplex z2) {
#ifndef STDC99
return DoubleComplex((z1.real*z2.real + z1.imag*z2.imag) / (z2.real*z2.real + z2.imag* z2.imag),
(z1.imag*z2.real - z1.real*z2.imag) / (z2.real*z2.real + z2.imag* z2.imag));
#else
return z1 / z2;
#endif
}
/*
** }
*/
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