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// file: kpoly.h
// update: 09/26/02
#ifndef _KPOLY_H
#define _KPOLY_H
#include <cassert>
#include <cstdlib>
#include <iostream>
using namespace std;
class K_POLY
{
// A base class for polynomials
protected:
unsigned long num_vars; // Number of variables
long* deg; // Max. degree in each variable
unsigned long num_coeffs; // Number of coefficients (terms)
public:
// constructor, assignment and destructor
K_POLY();
K_POLY(const unsigned long, const long* const);
K_POLY(const K_POLY&);
K_POLY& operator =(const K_POLY&);
virtual ~K_POLY();
protected:
long* index_to_powers(const unsigned long i) const;
// For an index, i, return the powers, p, of the term
// to which the i-th coefficient belongs to.
long* index_to_powers_homog(const unsigned long t,
const unsigned long i) const;
// For an index, i, return the powers, p, of the term
// to which the i-th coefficient belongs to.
unsigned long index_to_deg(const unsigned long i) const;
// Return the total degree of the i-th term.
unsigned long powers_to_index(const long* const p) const;
// Return the index of the term of the powers p.
};
#endif
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