complex.h

易学c++源码

#include <iostream>
using namespace std;
class Complex
{
public:
	Complex(Complex &a);
	Complex(double r=0,double i=0);
	void display();
	void set(Complex &a);
	Complex plus(Complex a);
	Complex minus(Complex a);
	Complex plus(double r);
	Complex minus(double r);
private:
	double real;
	double img;
};
Complex::Complex(Complex &a)
{
	real=a.real;
	img=a.img;
}
Complex::Complex(double r,double i)
{
	real=r;
	img=i;
}
void Complex::display()
{
	cout <<real <<(img>=0?"+":"") <<img <<"i";
}
void Complex::set(Complex &a)
{
	real=a.real;
	img=a.img;
}
Complex Complex::plus(Complex a)
{
	Complex temp(a.real+real,a.img+img);
	return temp;
}
Complex Complex::minus(Complex a)
{
	Complex temp(real-a.real,img-a.img);
	return temp;
}
Complex Complex::plus(double r)
{
	Complex temp(real+r,img);
	return temp;
}
Complex Complex::minus(double r)
{
	Complex temp(real-r,img);
	return temp;
}