netgen/libsrc/linalg/polynomial.hpp
Joachim Schoeberl 310cb00b13 autotools
2009-01-12 23:40:13 +00:00

46 lines
1.2 KiB
C++

#ifndef FILE_POLYNOMIAL
#define FILE_POLYNOMIAL
/* *************************************************************************/
/* File: polynomial.hh */
/* Author: Joachim Schoeberl */
/* Date: 25. Nov. 99 */
/* *************************************************************************/
class QuadraticPolynomial1V
{
double c, cx, cxx;
public:
QuadraticPolynomial1V (double ac, double acx, double acxx);
double Value (double x);
double MaxUnitInterval ();
};
class LinearPolynomial2V
{
double c, cx, cy;
public:
LinearPolynomial2V (double ac, double acx, double acy);
friend class QuadraticPolynomial2V;
};
class QuadraticPolynomial2V
{
double c, cx, cy, cxx, cxy, cyy;
public:
QuadraticPolynomial2V ();
QuadraticPolynomial2V (double ac, double acx, double acy,
double acxx, double acxy, double acyy);
void Square (const LinearPolynomial2V & lp);
void Add (double lam, const QuadraticPolynomial2V & qp);
double Value (double x, double y);
// double MinUnitSquare ();
double MaxUnitSquare ();
double MaxUnitTriangle ();
};
#endif