/* -*- mode: C -*- */ /* IGraph library. Copyright (C) 2010-2012 Gabor Csardi 334 Harvard street, Cambridge, MA 02139 USA This program 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 2 of the License, or (at your option) any later version. This program 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 this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef IGRAPH_COMPLEX_H #define IGRAPH_COMPLEX_H #include "igraph_decls.h" #include "igraph_types.h" __BEGIN_DECLS typedef struct igraph_complex_t { igraph_real_t dat[2]; } igraph_complex_t; #define IGRAPH_REAL(x) ((x).dat[0]) #define IGRAPH_IMAG(x) ((x).dat[1]) #define IGRAPH_COMPLEX_EQ(x,y) ((x).dat[0]==(y).dat[0] && (x).dat[1]==(y).dat[1]) IGRAPH_EXPORT igraph_complex_t igraph_complex(igraph_real_t x, igraph_real_t y); IGRAPH_EXPORT igraph_complex_t igraph_complex_polar(igraph_real_t r, igraph_real_t theta); IGRAPH_EXPORT igraph_bool_t igraph_complex_eq_tol(igraph_complex_t z1, igraph_complex_t z2, igraph_real_t tol); IGRAPH_EXPORT igraph_real_t igraph_complex_mod(igraph_complex_t z); IGRAPH_EXPORT igraph_real_t igraph_complex_arg(igraph_complex_t z); IGRAPH_EXPORT igraph_real_t igraph_complex_abs(igraph_complex_t z); IGRAPH_EXPORT igraph_real_t igraph_complex_logabs(igraph_complex_t z); IGRAPH_EXPORT igraph_complex_t igraph_complex_add(igraph_complex_t z1, igraph_complex_t z2); IGRAPH_EXPORT igraph_complex_t igraph_complex_sub(igraph_complex_t z1, igraph_complex_t z2); IGRAPH_EXPORT igraph_complex_t igraph_complex_mul(igraph_complex_t z1, igraph_complex_t z2); IGRAPH_EXPORT igraph_complex_t igraph_complex_div(igraph_complex_t z1, igraph_complex_t z2); IGRAPH_EXPORT igraph_complex_t igraph_complex_add_real(igraph_complex_t z, igraph_real_t x); IGRAPH_EXPORT igraph_complex_t igraph_complex_add_imag(igraph_complex_t z, igraph_real_t y); IGRAPH_EXPORT igraph_complex_t igraph_complex_sub_real(igraph_complex_t z, igraph_real_t x); IGRAPH_EXPORT igraph_complex_t igraph_complex_sub_imag(igraph_complex_t z, igraph_real_t y); IGRAPH_EXPORT igraph_complex_t igraph_complex_mul_real(igraph_complex_t z, igraph_real_t x); IGRAPH_EXPORT igraph_complex_t igraph_complex_mul_imag(igraph_complex_t z, igraph_real_t y); IGRAPH_EXPORT igraph_complex_t igraph_complex_div_real(igraph_complex_t z, igraph_real_t x); IGRAPH_EXPORT igraph_complex_t igraph_complex_div_imag(igraph_complex_t z, igraph_real_t y); IGRAPH_EXPORT igraph_complex_t igraph_complex_conj(igraph_complex_t z); IGRAPH_EXPORT igraph_complex_t igraph_complex_neg(igraph_complex_t z); IGRAPH_EXPORT igraph_complex_t igraph_complex_inv(igraph_complex_t z); IGRAPH_EXPORT igraph_complex_t igraph_complex_sqrt(igraph_complex_t z); IGRAPH_EXPORT igraph_complex_t igraph_complex_sqrt_real(igraph_real_t x); IGRAPH_EXPORT igraph_complex_t igraph_complex_exp(igraph_complex_t z); IGRAPH_EXPORT igraph_complex_t igraph_complex_pow(igraph_complex_t z1, igraph_complex_t z2); IGRAPH_EXPORT igraph_complex_t igraph_complex_pow_real(igraph_complex_t z, igraph_real_t x); IGRAPH_EXPORT igraph_complex_t igraph_complex_log(igraph_complex_t z); IGRAPH_EXPORT igraph_complex_t igraph_complex_log10(igraph_complex_t z); IGRAPH_EXPORT igraph_complex_t igraph_complex_log_b(igraph_complex_t z, igraph_complex_t b); IGRAPH_EXPORT igraph_complex_t igraph_complex_sin(igraph_complex_t z); IGRAPH_EXPORT igraph_complex_t igraph_complex_cos(igraph_complex_t z); IGRAPH_EXPORT igraph_complex_t igraph_complex_tan(igraph_complex_t z); IGRAPH_EXPORT igraph_complex_t igraph_complex_sec(igraph_complex_t z); IGRAPH_EXPORT igraph_complex_t igraph_complex_csc(igraph_complex_t z); IGRAPH_EXPORT igraph_complex_t igraph_complex_cot(igraph_complex_t z); __END_DECLS #endif