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C++ program to perform arithmetic operations of two complex numbers using operator overloading

by Ranjith | March 13th, 2010.

BINARY OPERATOR

AIM:
A program to perform simple arithmetic operations of two complex numbers using operator overloading.

ALGORITHAM:

• Start the process
• Get the complex value a.real and a.image
• Check while ((ch=getchar())!=’q’)
o True : execute switch(ch)
o Case ‘a’:Then
Compute c<-a+b, Print c.real and c.imag
o Case ‘s’: Then
Compute c<-a-b, Print c.real and c.imag
o Case ‘m’: Then
Compute c<-a*b, Print c.real and c.imag
o Case ‘d’: Then
Compute c<-a/b, Print c.real and c.imag
o End of switch
• End of while
• Stop the process

PROGRAM

#include<iostream.h>
#include<conio.h>
#include<string.h>
struct complex
{
float real;
float imag;
};
complex operator + (complex a,complex b);
complex operator - (complex a,complex b);
complex operator * (complex a,complex b);
complex operator / (complex a,complex b);
 
void main()
{
complex a,b,c;
int ch;
void menu(void);clrscr();
cout<<"Enter the first complex no:";
cin>>a.real>>a.imag;
cout<<"Enter the second complex no:";
cin>>b.real>>b.imag;
menu();
while ((ch = getchar()) != 'q')
{
switch(ch)
{
case 'a':c =a + b;
cout<<"Addition of 2 no’s";
cout<<c.real<<"+i"<<c.imag;
break;
case 's':c=a-b;
cout<<"Substraction of 2 no’s";
cout<<c.real<<"i"<<c.imag;
break;
case 'm':c=a*b;
cout<<"Multiplication of 2 no’s";
cout<<c.real<<"i"<<c.imag;
break;
 				case 'd':c=a/b;
cout<<"Division of 2 no’s";
cout<<c.real<<"i"<<c.imag;
break;
 			}
 		}
 	}
 	void menu()
{
cout<<"complex no: operators";
cout<<"a->addition";
cout<<"s->substraction";
cout<<"m->multiplication";
cout<<"d->division";
cout<<"q->quit";
cout<<"options please";
}
complex operator -(struct complex a, struct complex b)
{
complex c;
c.real=a.real-b.real;
c.imag=a.imag-b.imag;
return(c);
}
complex operator *(struct complex a, struct complex b)
{
complex c;
c.real=((a.real*b.real)-(a.imag*b.imag));
c.imag=((a.real*b.imag)+(a.imag*b.real));
return(c);
}
complex operator +(struct complex a,struct complex b)
{
complex c;
c.real=a.real+b.real;
c.imag=a.imag+b.imag;
return(c);
}
complex operator /(struct complex a, struct complex b)
{
complex c;
float temp;
temp=((b.real*b.real)+(b.imag*b.imag));
c.real=((a.real*b.real)+(a.imag*b.imag))/temp;
  		 return(c);
}

OUTPUT

Enter the first complex no: 1,1
Enter the second complex no: 2,2

Addition of 2 no’s : 3+I3


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