complex.h

复数类

#ifndef __COMPLEX_H_

#define __COMPLEX_H_

class complex{
public:
	double real , imag ;
	complex();
	complex(double r , double i) ;
	complex(double r) ;
	complex(complex& c) ;
	~complex() ;
	complex& add(complex& c) ;
	complex& sub(complex& c) ;
	complex& mul(complex& c) ;
	complex& div(complex& c) ;
	complex& operator= ( complex &c) ;
	complex& operator+= (complex &c) ;
	complex& operator-= (complex &c) ;
	complex& operator*= (complex &c) ;
	complex& operator/= (complex &c) ;
	complex operator+ ( complex &c ) ;
	complex operator- ( complex &c ) ;
	complex operator* ( complex &c ) ;
	complex operator/ ( complex &c ) ;
	void output() ;
};

const double _COMPLEX_EPS = 1e-10 ;
const int _COMPLEX_OUTPUT_WIDTH = 0 ;
const int _COMPLEX_OUTPUT_DECIMAL = 3 ;

#endif