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/*
This file is part of the FElt finite element analysis package.
Copyright (C) 1993-1997 Jason I. Gobat and Darren C. Atkinson
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/************************************************************************
* File: complex.h
*
* Description:
************************************************************************/
# ifndef _COMPLEX_H
# define _COMPLEX_H
# include "proto.h"
typedef struct {
double r;
double i;
} complex;
double re PROTO ((complex));
double im PROTO ((complex));
double modulus PROTO ((complex));
complex negate PROTO ((complex));
complex recip PROTO ((complex));
complex mult PROTO ((complex, complex));
complex add PROTO ((complex, complex));
complex cdiv PROTO ((complex, complex));
complex sub PROTO ((complex, complex));
complex conj PROTO ((complex));
complex scale PROTO ((complex, double, double));
complex csqrt PROTO ((complex));
complex cexp PROTO ((double));
complex ccos PROTO ((complex));
complex csin PROTO ((complex));
char *cprint PROTO ((complex));
unsigned is_zero PROTO ((complex));
complex zero PROTO (( ));
# endif /* _COMPLEX_H */
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