/*
Introduction to header file.
*/
#ifndef HWK_POLY_H
#define HWK_POLY_H  /*this file has to end with #endif */

#include <iostream>
using namespace std ;

class Poly
{
   private:   
      double * coeff; //a[0]
      double eval_point ;
      int n;
   /*private member variables only to be accessed by the 'public' members of the class to avoid 
       unintended destruction by user.
   */ 

   public:
      Poly();
      Poly(int _n);
      void Print();
      double zero_derivative();
      double first_derivative();
      

}; //class declaration end.

#endif