// Newton-Raphson Method

#include<stdio.h>
#include<curses.h>
#include<math.h>

// Define your funtion here; adjust per your requirement
#define f(x) (x+log(x)-2)
// First derivative of the above function
#define d(x) (1+(1/x))

main()
{
    float x, y, a, b, i;

    printf("\n Enter the values of a and b: ");
    scanf("%f\t%f",&a,&b);
    x = (a+b)/2;

    for(i=1;i<=10;i++)
    {
	y = x - (f(x)/d(x));
	x = y;
    }

    printf("\n The required root is: %f\n", x);
    getchar();
}