polynomials_adini.h

// ---------------------------------------------------------------------
//
// Copyright (C) 2009 - 2016 by the deal.II authors
//
// This file is part of the deal.II library.
//
// The deal.II library is free software; you can use it, redistribute
// it, and/or modify it under the terms of the GNU Lesser General
// Public License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// The full text of the license can be found in the file LICENSE at
// the top level of the deal.II distribution.
//
// ---------------------------------------------------------------------


#ifndef dealii__polynomials_adini_h
#define dealii__polynomials_adini_h

#include <deal.II/base/point.h>
#include <deal.II/base/tensor.h>
#include <deal.II/base/table.h>

DEAL_II_NAMESPACE_OPEN

class PolynomialsAdini
{
public:
  PolynomialsAdini ();
  void compute (const Point<2> &unit_point,
                std::vector<double> &values,
                std::vector<Tensor<1,2> > &grads,
                std::vector< Tensor<2,2> > &grad_grads) const;

  double compute_value (const unsigned int i,
                        const Point<2> &p) const;

  Tensor<1,2> compute_grad (const unsigned int i,
                            const Point<2> &p) const;
  Tensor<2,2> compute_grad_grad (const unsigned int i, const Point<2> &p) const;
  Tensor<2,2> compute_grad_grad_2 (const unsigned int i, const Point<2> &p) const;

private:
  Table<2, double> coef;

  Table<2, double> dx;
  Table<2, double> dy;
  Table<2, double> dxx;
  Table<2, double> dyy;
  Table<2, double> dxy;

};



DEAL_II_NAMESPACE_CLOSE

#endif