#include<stdio.h>
#include<conio.h>
#include<math.h>
#define F(x) x*x+x-2
int main (void)
{
float x1,x2,x3,x,e=1.0,c=0,a=0,fx1,fx2;
clrscr();
printf("Enter the value of x1 and x2: ");
scanf("%f %f",&x1,&x2);
while(e>=0.000001)
{
x=x1;
fx1=F(x);
x=x2;
fx2=F(x);
x3=x2-(fx2*(x2-x1)/(fx2-fx1));
a=x3;
e=fabs((x3-x2)/x3);
x1=x2;
x2=x3;
c++;
}
printf("Itteration no: %.0f\nAns: %f",c,a);
getch();
return 0;
}