第8周任务1-3（复数与double型数据的四则运算）

最新推荐文章于 2021-07-15 18:37:39 发布

原创最新推荐文章于 2021-07-15 18:37:39 发布 · 896 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#任务 #c #bi #system #扩展

编程小作业专栏收录该内容

80 篇文章

订阅专栏

/* (程序头部注释开始)
* 程序的版权和版本声明部分
* Copyright (c) 2011, 烟台大学计算机学院学生 
* All rights reserved.
* 文件名称：                              
* 作    者：   臧鹏               
* 完成日期：   2012   年  4 月 8  日
* 版 本 号：          

* 对任务及求解方法的描述部分
* 输入描述： 复数相加： (a+bi)+(c+di)=(a+c)+(b+d)i.复数相减：(a+bi)-(c+di)=(a-c)+(b-d)i.
复数相乘：(a+bi)(c+di)=(ac－bd)+(bc+ad)i.  复数相除：(a+bi)/(c+di)=(ac+bd)/(c^2+d^2) +(bc-ad)/(c^2+d^2)i  
* 问题描述：实现复数类中的运算符重载。定义一个复数类重载运算符+、-、*、/，使之能用于复数的加减乘除，扩展功能，使之能与

double型数据进行运算，d？c,和c？d的运算，？为+—*/。还定义一目运算符-c,相当于0-c.
* 程序输出： 
* 程序头部的注释结束
*/
#include<iostream>
using namespace std;
class Complex
{
public:
	Complex(){real=0;imag=0;}
	Complex(double r,double i){real=r;imag=i;}

	friend Complex operator+(Complex &c1,Complex &c2);
	friend Complex operator-(Complex &c1,Complex &c2);
	friend Complex operator*(Complex &c1,Complex &c2);
	friend Complex operator/(Complex &c1,Complex &c2);
	friend Complex operator+(Complex &c1,const double &d);
	friend Complex operator-(Complex &c1,const double &d);
	friend Complex operator*(Complex &c1,const double &d);
	friend Complex operator/(Complex &c1,const double &d);
	friend Complex operator+(const double &d,Complex &c1);
	friend Complex operator-(const double &d,Complex &c1);
	friend Complex operator*(const double &d,Complex &c1);
	friend Complex operator/(const double &d,Complex &c1);
	friend Complex operator-(Complex &c);//一目运算符
	void display();
private:
	double real;
	double imag;
};
//下面定义成员函数
Complex operator+(Complex &c1,Complex &c2)//复数加法
{
	Complex c;
	c.real = c1.real +c2.real;
	c.imag = c1.imag +c2.imag;
	return c;

}
Complex operator+(Complex &c1,const double &d)//复数加double
{
	Complex c;
	c.real = c1.real +d;
	c.imag = c1.imag ;
	return c;

}
Complex operator+(const double &d,Complex &c1)//double加复数
{
	Complex c;
	c.real = c1.real +d;
	c.imag = c1.imag ;
	return c;

}

Complex operator-(Complex &c1,Complex &c2) //复数减法
{
	Complex c;
	c.real = c1.real -c2.real;
	c.imag = c1.imag -c2.imag;
	return c;

}
Complex operator-(Complex &c1,const double &d)//复数减double
{
	Complex c;
	c.real = c1.real -d;
	c.imag = c1.imag ;
	return c;

}
Complex operator-(const double &d,Complex &c1)//double减复数
{
	Complex c;
	c.real =d- c1.real ;
	c.imag = -c1.imag ;
	return c;

}

Complex operator*(Complex &c1,Complex &c2) //复数乘法
{
	Complex c;
	c.real=c1.real*c2.real-c1.imag*c2.imag;    
	c.imag=c1.imag*c2.real+c1.real*c2.imag; 
	return c;


}
Complex operator*(Complex &c1,const double &d)//复数乘double
{
	Complex c;
	c.real=c1.real*d-c1.imag*0;    
	c.imag=c1.imag*d+c1.real*0; 
	return c;

}
Complex operator*(const double &d,Complex &c1)//double乘复数
{
	Complex c;
	c.real=c1.real*d-c1.imag*0;    
	c.imag=c1.imag*d+c1.real*0; 
	return c;

}
Complex operator/(Complex &c1,Complex &c2)//复数除法
{
	Complex c;
	c.real=(c1.real*c2.real+c2.imag*c1.imag)/(c2.real*c2.real+c2.imag*c2.imag);    
	c.imag=(c2.real*c1.imag-c2.imag*c1.real)/(c2.real*c2.real+c2.imag*c2.imag); 
	return c;

}
Complex operator/(Complex &c1,const double &d)//复数除double
{
	Complex c;
	c.real=(c1.real*d+0*c1.imag)/(d*d);    
	c.imag=(d*c1.imag-0*c1.real)/(d*d); 
	return c;

}
Complex operator/(const double &d,Complex &c1)//double除复数
{
	Complex c;
	c.real=(c1.real*d+0*c1.imag)/(c1.real*c1.real+c1.imag*c1.imag);     
	c.imag=(0*c1.real-d*c1.imag)/(c1.real*c1.real+c1.imag*c1.imag); 
	return c;

}
void Complex::display()
{
	cout<<"("<<real<<","<<imag<<"i)"<<endl;
	cout<<endl;
}
Complex operator-(Complex &c1)
{
	Complex c;
	c.real = -c1.real;
	c.imag = -c1.imag;
	return c;
}
int main()
{
	Complex c1(3,4),c2(5,-10),c3;
	cout<<"c1=";
	c1.display();
	cout<<"c2=";
	c2.display();
	c3=c1+c2;
	cout<<"c1+c2=";
	c3.display();
	c3=c1-c2;
	cout<<"c1-c2=";
	c3.display();
	c3=c1*c2;
	cout<<"c1*c2=";
	c3.display();
	c3=c1/c2;
	cout<<"c1/c2=";
	c3.display();
	c3=c1+6.38;
	cout<<"c1+6.38=";
	c3.display();
	c3=c1-6.38;
	cout<<"c1-6.38=";
	c3.display();
	c3=c1*6.38;
	cout<<"c1*6.38=";
	c3.display();
	c3=c1/6.38;
	cout<<"c1/6.38=";
	c3.display();
	c3=6.38+c1;
	cout<<"6.38+c1=";
	c3.display();
	c3=6.38-c1;
	cout<<"6.38-c1=";
	c3.display();
	c3=6.38*c1;
	cout<<"6.38*c1=";
	c3.display();
	c3=6.38/c1;
	cout<<"6.38/c1=";
	c3.display();
	c3 = -c2;
	cout<<"-c2=";
	c3.display();
	system("pause");
	return 0;
}