quadrature_gausslegendre.h

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#ifndef QUADRATURE_GAUSS_LEGENDRE_H
#define QUADRATURE_GAUSS_LEGENDRE_H
 
#include "quadrature.h"
 
namespace chi_math
{
  class QuadratureGaussLegendre;
}
 
//######################################################### Class Def
/**Gauss-Legendre quadrature.*/
class chi_math::QuadratureGaussLegendre : public chi_math::Quadrature
{
public:
  static chi::InputParameters GetInputParameters();
  explicit QuadratureGaussLegendre(const chi::InputParameters& params);
  explicit
  QuadratureGaussLegendre(QuadratureOrder in_order,
                          bool verbose=false,
                          unsigned int max_iters=1000,
                          double tol=1.0e-12);
 
  explicit
  QuadratureGaussLegendre(unsigned int N,
                          bool verbose=false,
                          unsigned int max_iters=1000,
                          double tol=1.0e-12);
 
private:
  void Initialize(unsigned int N, bool verbose,
                  unsigned int max_iters, double tol);
 
  static std::vector<double> FindRoots(unsigned int N,
                                       unsigned int max_iters=1000,
                                       double tol=1.0e-12);
};
 
#endif