SundanceFeketeQuadQuadrature.hpp

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#ifndef SUNDANCE_FEKETEQUADQUADRATURE_H
#define SUNDANCE_FEKETEQUADQUADRATURE_H

#include "SundanceDefs.hpp"
#include "Teuchos_Array.hpp"

namespace Sundance
{
  using namespace Teuchos;
    /**
     * Get abscissas and weights for Gauss-Lobatto quadrature on quadrilateral
     * (Gauss-Lobatto points are Fekete points on tensor elements)
     */

    class FeketeQuadQuadrature
    {
    public:
      static void getPoints(int order, Array<double>& wgt,
                            Array<double>& x,
                            Array<double>& y);

      static void computeBasisCoeffs(const int order,
          Array<double>& basisCoeffs);

      static void evalPolynomials(int nPts, double x,
          double y, double* resultPtr);

      static bool test(int p);


    private:

      static double exact(int a, int b);

    };
  }


#endif