C++ Algorithms Code Examples:- Complex nos

C++ Algorithms Code Examples:- Complex nos

#include<iostream.h>
#include<conio.h>
class complex
{
    private:
        float real,img;
    public:
        void assign(float x,float y)
        {
            real=x;
            img=y;
        }
        void print()
        {  if(img>=0)
            cout<<real<<"+"<<img<<"i";
            else
                cout<<real<<img<<"i";
        getch();
        }
};
void add( float a,float b,float c, float d)
    {

        float e,f;complex g;
        e=a+c;
        f=b+d;
        g.assign(e,f);
       g.print();
    }
void sub( float a,float b,float c, float d)
    {

        float e,f;complex g;
        e=a-c;
        f=b-d;
        g.assign(e,f);
       g.print();
    }
void mul( float a,float b,float c, float d)
    {

        float e,f; complex g;
        e=a*c-b*d;
        f=b*c+a*d;
        g.assign(e,f);
       g.print();
    }
void main()
{
    float a,b,c,d;
    complex x,y,z;
    clrscr();
    cout<<" for complex 1:";
    cout<<"real part:";
    cin>>a;
    cout<<"imaginary part:";
    cin>>b;
    cout<<" for complex 2:";
    cout<<"real part:";
    cin>>c;
    cout<<"imaginary part:";
    cin>>d;
    x.assign(a,b);
    y.assign(c,d);
    cout<<"**************original data:************\n";
    cout<<"Complex 1:\n";x.print();
    cout<<"\n Complex 2:\n";y.print();
    cout<<"\n************=================**********\n";
    cout<<"\n Addition:\n";add(a,b,c,d);
    cout<<"\n Subtraction:\n";sub(a,b,c,d);
    cout<<"\n Multipication:\n";mul(a,b,c,d);
  }