Thread: bisection method

hey i edited it ....bt its still not workin...help...

Code:

#include<stdio.h>
#include<math.h>
main()
{float a,b,c,x1,x2,x,series;
double d;



printf("enter a,b,c and x1(pos) & x2(neg)");
scanf("%f%f%f%f%f",&a,&b,&c,&x1,&x2);


x=0;
d=1;

 while(d>0.0001)
    {
      x=(x1+x2)/2;
      

     series=a*x*x+b*x+c;
      

     d=fabs(series);
      

         if(x*x1 < 0)
             x2=x;
         else
             x1=x;
    }

     

printf("ans=%f",x);



return 0;
}