/*
 * calc.c
 *
 * This file contains a main() that drives the differentiate() function.
 * It reads in a polynomial, finds the derivative, then prints it.
 */
#include <stdio.h>
#include <stdlib.h>
#include "mono.h"
#include "poly.h"
#include "diff.h"

int main () {
	poly 	F, 	/* user input polynomial */
		L;	/* derivative of input polynomial */

	if (isatty (0)) printf ("Enter your polynomial: ");
	/* get the polynomial from standard input */

	F = get_poly ();

	/* echo the polynomial */

	printf ("derivative of\n");
	print_poly (F);

	/* find and print the derivative */

	printf ("\nis\n");
	L = differentiate (F);
	print_poly (L);
	printf ("\n");

	/* clean up and exit */

	destroy_poly (&L);
	exit (0);
}