/* This is a main routine that will call your function newton 
 * to find the roots of an equation */

#include<stdio.h>
#include<stdlib.h>

double newton(double guess, double tolerance);

int main(int argc, char * argv[])
{
	double f;
	double guess,tolerance;

	if(argc < 3 ){
		printf("Usage: %s  initial_guess tolerance\n",argv[0]);
		return 1;
	}

 	guess     = strtod(argv[1],NULL);
 	tolerance = strtod(argv[2],NULL);
	
	f = newton(guess,tolerance);

	printf("This is the answer: %lf using %lf as an initial guess.\n",f,guess);
}

// Below is the function to edit.
double newton(double guess, double tolerance)
{
	double value;
	
	return value;
}