/* complex.h: Declarations for complex.c
Copyright 2003 Bjoern Butscher, Hendrik Weimer
This file is part of libquantum
libquantum is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.
libquantum is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with libquantum; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA
*/
#ifndef __COMPLEX_H
#define __COMPLEX_H
#include
#include "config.h"
#define quantum_conj(z) (conj(z))
#define quantum_real(z) (creal(z))
#define quantum_imag(z) (cimag(z))
extern double quantum_prob (COMPLEX_FLOAT a);
extern COMPLEX_FLOAT quantum_cexp(REAL_FLOAT phi);
/* Calculate the square of a complex number (i.e. the probability) */
static inline double
quantum_prob_inline(COMPLEX_FLOAT a)
{
REAL_FLOAT r, i;
r = quantum_real(a);
i = quantum_imag(a);
return r * r + i * i;
}
#endif