Answer Posted / aalok

// Program for complex operation by using operator overloading.
#include<iostream.h>
#include<conio.h>
class complex
{
int r,i;
public:
complex()
{}
void accept();
void display();
friend complex operator +(complex ,complex );
friend complex operator -(complex ,complex );
friend complex operator *(complex ,complex );
//friend complex operator /(complex ,complex );
}; // end of class complex.

void complex::accept()
{
cout<<"\n\n Enter Real & Imaginary part of complex";
cin>>r>>i;
} //end of accept().

void complex::display()
{
cout<<r<<"+"<<i<<"i";
} //end of display().


complex operator +(complex c1,complex c2)
{
complex ans;
ans.r=c1.r+c2.r;
ans.i=c1.i+c2.i;
return(ans);
} //end of complex +()

complex operator -(complex c1,complex c2)
{
complex ans;
ans.r=c1.r-c2.r;
ans.i=c1.i-c2.i;
return(ans);
} //end of complex -()

complex operator *(complex c1,complex c2)
{
complex ans;
ans.r=(c1.r*c2.r)-(c1.i*c2.i);
ans.i=(c1.r*c2.i)+(c1.i*c2.r);
return(ans);
} //end of complex *()

/*complex operator /(complex c1,complex c2)
{
complex ans,t1,t2;

t1.r=(c1.r*c2.r)+(c1.i*c2.i);
t1.i=(c1.i*c2.r)-(c1.r*c2.i);

t2.r=(c2.r*c2.r)+(c2.i*c2.i);
t2.i=0;

ans.r=t1.r/t2.r;
ans.i=t1.i/t2.i;
return(ans);
} //end of complex /() */


void main()
{
int ch;
complex c1,c2,c3;
clrscr();
cout<<"\n Enter first complex no";
c1.accept();
c1.display();
cout<<"\n Enter second complsx no";
c2.accept();
c2.display();

cout<<"\n\n~~~~~MENU~~~~~";
cout<<"\n 1. ADDATION ";
cout<<"\n 2. SUBTRACTION ";
cout<<"\n 3. MULTIPLACTION ";
cout<<"\n 4. DIVISION ";
cout<<"\n 5. EXIT ";
cout<<"\n\n Enter your choice = \t";
cin>>ch;

switch(ch)
{
case 1:
{
c3=c1+c2;
cout<<"\n ADDATION=";
c3.display();
} // end case 1.

case 2:
{
c3=c1-c2;
cout<<"\n SUBTRACTION=";
c3.display();
} // end case 2.

case 3:
{
c3=c1*c2;
cout<<"\n MULTIPLACTION=";
c3.display();
} // end case 3.

/* case 4:
{
c3=c1/c2;
cout<<"\n DIVISION=";
c3.display();
} // end case 4. */
} //end of switch case.

getch();
} //End of main ().

Respected sir/madam, My self R SANKAR. I am final year BE civil engineering student (2014-2018). i have shortlisted for isro exam 2018.last university exam (7th sem) result was declared i have scored 6.98CGPA. but they not provide last result mark sheet still now 1. What are the documents bring to isro exam venue? 2. either bring bonafide certificate from college instead of mark sheets?

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