Q2)write a c programme to find solution for quadratic equation?

Author: Sanif S S 

Site: theeduzone.blogspot.com 

Email: sanifss@gmail.com


#include<stdio.h>
#include<conio.h>

#include<math.h>
void main()
{
 clrscr();
 int a,b,c;
 float d,r1,r2;
 printf("enter coefficients of equation\n");
 scanf("%d %d %d",&a,&b,&c);
 if(a==0)
  {
   printf("not possible");
  }
 else
  {
   d=((b*b)-(4*a*c));
 if(d==0)
  {
    printf("roots are real and equal\n");
    r1=((-b/(2*a)));
    printf("r1=r2=%f",r1);
  }
 if(d>0)
  {
   printf("roots are real and distinct\n");
   r1=((-b+sqrt(d))/(2*a));
   r2=((-b-sqrt(d))/(2*a));
   printf("r1=%f \nr2=%f",r1,r2);
  }
 if(d<0)
  {
   printf("roots are imaginary\n");
   d=-d;
   r1=((-b)/(2*a));
   r2=((sqrt(d)/(2*a)));
   printf("r1=%f+i %f \nr2=%f-i %f",r1,r2,r1,r2);
  }
  }
getch();
}