SY_BCS_CPP_Slip no :5_1, 15_2,19_2

Slip no : 5_1, 15_2,19_2

Define a class named Complex for representing complex numbers. A complex number has the general form a + ib, where a- the real part, b - the imaginary part are both real numbers and i2=-1. Define parameterized and default constructor. Overload +, - and * operators with usual meaning.

a) Default constructor & Parameterized constructor-each carries 3 marks                         [6]

b) Overloading of + operator & - operator- each carries 5 marks                                        [10]

c) Overloading of * operator                                                                                                  [9]

Write a main function that uses the above class and its member functions.                        [5]

#include<iostream>

using namespace std;

class complex

{

            float x, y;

            public:

            complex()

            {

            }

            complex(float r,float img)

            {

                        x=r;

                        y=img;

            }

            friend complex operator +(complex,complex);

            friend complex operator -(complex,complex);

            friend complex operator *(complex,complex);

            void display()

            {

                        cout<<"\t x= "<< x<<"\t "<<"y= "<<y<<"i"<<endl;

            }

};

complex operator+(complex ob1,complex ob2)

{

            complex temp;

            temp.x=ob1.x+ob2.x;

            temp.y=ob1.y+ob2.y;

            return temp;

}

complex operator-(complex ob1,complex ob2)

{

            complex temp;

            temp.x=ob1.x-ob2.x;

            temp.y=ob1.y-ob2.y;

            return temp;

}

complex operator*(complex ob1,complex ob2)

{

            complex temp;

            temp.x=ob1.x*ob2.x;

            temp.y=ob1.y*ob2.y;

            return temp;

}

main()

{

            float r,img,r1,img1;

            cout<<"Enter 1st real no : ";

            cin>>r;

            cout<<"Enter 1st imaginary no : ";

            cin>>img;

            cout<<"Enter 2nd real no : ";

            cin>>r1;

            cout<<"Enter 2nd imaginary no : ";

            cin>>img1;

            complex c1,c2,c3,c4,c5;

            c1=complex(r,img);

            c2=complex(r1,img1);

            c3=c1+c2;

            c4=c1-c2;

            c5=c1*c2;

            cout<<"c1 = ";

            c1.display();

            cout<<"c2 = ";

            c2.display();

            cout<<"c1+c2 = ";

            c3.display();

            cout<<"c1-c2 = ";

            c4.display();

            cout<<"c1*c2 = ";

            c5.display();

}