ADTs de 1ª ordem: números complexos - Revision history

Root: ADTs de 1Âª ordem: números complexos moved to ADTs de 1ª ordem: números complexos

2008-11-12T08:30:44Z

ADTs de 1Âª ordem: números complexos moved to ADTs de 1ª ordem: números complexos

← Older revision	Revision as of 08:30, 12 November 2008
(No difference)

Root at 06:55, 19 May 2005

2005-05-19T06:55:21Z

← Older revision		Revision as of 06:55, 19 May 2005
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	typedef struct complex *Complex;		typedef struct complex *Complex;

	Complex COMPLEXinit(double, double);		Complex '''COMPLEXinit'''(double, double);
	double COMPLEXre(Complex);		double '''COMPLEXre'''(Complex);
	double COMPLEXim(Complex);		double '''COMPLEXim'''(Complex);
	Complex COMPLEXmult(Complex, Complex);		Complex '''COMPLEXmult'''(Complex, Complex);

	#endif		#endif
Line 20:		Line 20:
	struct complex { double re, im; };		struct complex { double re, im; };

	Complex COMPLEXinit(double re, double im) {		Complex '''COMPLEXinit'''(double re, double im) {
	Complex t = (Complex)malloc(sizeof(*t));		Complex t = (Complex)malloc(sizeof(*t));
	t->re = re; t->im = im; return t;		t->re = re; t->im = im; return t;
	}		}

	double COMPLEXre(Complex c) { return c->re; }		double '''COMPLEXre'''(Complex c) { return c->re; }
	double COMPLEXim(Complex c) { return c->im; }		double '''COMPLEXim'''(Complex c) { return c->im; }

	Complex COMPLEXmult(Complex a, Complex b) {		Complex '''COMPLEXmult'''(Complex a, Complex b) {
	return COMPLEXinit(COMPLEXre(a) * COMPLEXre(b) â€“ COMPLEXim(a) * COMPLEXim(b),		return '''COMPLEXinit'''('''COMPLEXre'''(a) * '''COMPLEXre'''(b) â€“ '''COMPLEXim'''(a) * '''COMPLEXim'''(b),
	COMPLEXre(a) * COMPLEXre(b) + COMPLEXim(b) * COMPLEXim(b));		'''COMPLEXre'''(a) * '''COMPLEXre'''(b) + '''COMPLEXim'''(b) * '''COMPLEXim'''(b));
	}		}

Root at 09:14, 18 May 2005

2005-05-18T09:14:16Z

New page

== Interface ==

#ifndef __COMPLEX_H__
#define __COMPLEX_H__

typedef struct complex *Complex;

Complex COMPLEXinit(double, double);
double COMPLEXre(Complex);
double COMPLEXim(Complex);
Complex COMPLEXmult(Complex, Complex);

#endif

== Implementação ==

#include <stdlib.h>
#include "COMPLEX.h"

struct complex { double re, im; };

Complex COMPLEXinit(double re, double im) {
Complex t = (Complex)malloc(sizeof(*t));
t->re = re; t->im = im; return t;
}

double COMPLEXre(Complex c) { return c->re; }
double COMPLEXim(Complex c) { return c->im; }

Complex COMPLEXmult(Complex a, Complex b) {
return COMPLEXinit(COMPLEXre(a) * COMPLEXre(b) â€“ COMPLEXim(a) * COMPLEXim(b),
COMPLEXre(a) * COMPLEXre(b) + COMPLEXim(b) * COMPLEXim(b));
}