Program to calculate roots of quadratic equation ax^2+bx+c=0

#include<iostream.h>
#include<conio.h>
#include<math.h>     //to claculate square root

void main()
{
clrscr();           //to clear the screen
float root1,root2,a,b,c,d;
cout<<"\n Quadratic Equation is ax^2=bx+c=0";
cout<<"\n Enter values of a,b and c : ";
cin>>a>>b>>c;

d=(b*b)-(4*a*c);
if(d>0)
{
     cout<<"\n Two real and distinct roots";
     root1=(-b+sqrt(d))/(2*a);
     root2=(-b-sqrt(d))/(2*a);
     cout<<"\n Roots are "<<root1<<" and "<<root2;
}

else
if(d==0)
{
      cout<<"\n Two real and equal roots";
      root1=root2=-b/(2*a);
      cout<<"\n Roots are "<<root1<<" and "<<root2;
}
else
   cout<<"\n Roots are COMPLEX and IMAGINARY....!!!";

getch();         //to stop the screen
}


                                                          Output