Find the real root of a quadratic equation

Find the real root of a quadratic equation

/*WAP to find the real root of a quadratic equation*/

#include<stdio.h>

#include<conio.h>

#include<math.h>

void main()

{

float a,b,c,d,r1,r2;

clrscr();

printf("enter the value of a,b and c:");

scanf("%f%f%f",&a,&b,&c);

d=b*b-4*a*c;

if(d<0)

printf("UNREAL ROOT");

else if(d==0)

{

r1=r2=-b/2*a;

printf("real roots are %.2f and %.2f",r1,r2);

}

else

{

r1=(-b+sqrt(d))/2*a;

r2=(-b-sqrt(d))/2*a;

printf("real roots are %.2f and %.2f",r1,r2);

}

getch();

}

OUTPUT:

enter the value of a,b and c:1 4 3

real roots are -1.00 and -3.00