Matrice_Diagonale.h

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#ifndef Matrice_Diagonale_included
#define Matrice_Diagonale_included
 
#include <TRUSTTabs_forward.h>
#include <Matrice_Base.h>
 
/*! @brief Classe Matrice_Diagonale Represente une matrice diagonale.
 *
 * @sa Matrice_Base
 */
 
class Matrice_Diagonale : public Matrice_Base
{
  Declare_instanciable_sans_constructeur(Matrice_Diagonale);
public :
  int ordre() const override;
  int nb_lignes() const override;
  int nb_colonnes() const override;
 
  DoubleVect& ajouter_multvect_(const DoubleVect& x, DoubleVect& r) const override;
  DoubleVect& ajouter_multvectT_(const DoubleVect& x, DoubleVect& r) const override;
  DoubleTab& ajouter_multTab_(const DoubleTab& x, DoubleTab& r) const override;
 
  void scale(const double x) override;
  void clean() override;
  void get_stencil(Stencil& stencil) const override;
  void get_symmetric_stencil(Stencil& stencil) const override;
  void get_stencil_and_coefficients(Stencil& stencil, StencilCoeffs& coefficients) const override;
  void get_symmetric_stencil_and_coefficients(Stencil& stencil, StencilCoeffs& coefficients) const override;
 
  Matrice_Diagonale();
  Matrice_Diagonale(int size);
  Matrice_Diagonale(const DoubleVect& coefficients);
 
  DoubleVect& get_coefficients();
  const DoubleVect& get_coefficients() const;
 
  void dimensionner(int size);
 
  double coeff(int i, int j) const;
  double& coeff(int i, int j);
 
protected :
  DoubleVect coefficients_;
};
 
#endif