TMatrixD

class TMatrixD : public TObject

    protected:

              void Allocate(Int_t nrows, Int_t ncols, Int_t row_lwb = 0, Int_t col_lwb = 0)
              void AMultB(const TMatrixD& a, const TMatrixD& b)
              void AtMultB(const TMatrixD& a, const TMatrixD& b)
       static void EigenSort(TMatrixD& eigenVectors, TVectorD& eigenValues)
              void Invalidate()
              void Invert(const TMatrixD& m)
              void InvertPosDef(const TMatrixD& m)
       static void MakeEigenVectors(TVectorD& d, TVectorD& e, TMatrixD& z)
       static void MakeTridiagonal(TMatrixD& a, TVectorD& d, TVectorD& e)
      static Int_t Pdcholesky(const Double_t* a, Double_t* u, const Int_t n)
              void Transpose(const TMatrixD& m)

    public:

                        TMatrixD()
                        TMatrixD(Int_t nrows, Int_t ncols)
                        TMatrixD(Int_t row_lwb, Int_t row_upb, Int_t col_lwb, Int_t col_upb)
                        TMatrixD(Int_t nrows, Int_t ncols, const Double_t* elements, Option_t* option)
                        TMatrixD(Int_t row_lwb, Int_t row_upb, Int_t col_lwb, Int_t col_upb, const Double_t* elements, Option_t* option)
                        TMatrixD(const TMatrixD& another)
                        TMatrixD(TMatrixD::EMatrixCreatorsOp1 op, const TMatrixD& prototype)
                        TMatrixD(const TMatrixD& a, TMatrixD::EMatrixCreatorsOp2 op, const TMatrixD& b)
                        TMatrixD(const TLazyMatrixD& lazy_constructor)
         const TMatrixD EigenVectors(TVectorD& eigenValues) const
                virtual ~TMatrixD()
              TMatrixD& Abs()
              TMatrixD& Apply(const TElementPosActionD& action)
              TMatrixD& Apply(const TElementActionD& action)
         static TClass* Class()
           virtual void Clear(Option_t* option)
               Double_t ColNorm() const
               Double_t Determinant() const
           virtual void Draw(Option_t* option)
               Double_t E2Norm() const
                  Int_t GetColLwb() const
                  Int_t GetColUpb() const
                   void GetElements(Double_t* elements, Option_t* option) const
        const Double_t* GetElements() const
              Double_t* GetElements()
                  Int_t GetNcols() const
                  Int_t GetNoElements() const
                  Int_t GetNrows() const
                  Int_t GetRowLwb() const
                  Int_t GetRowUpb() const
              TMatrixD& Invert(Double_t* determ_ptr = 0)
              TMatrixD& InvertPosDef()
        virtual TClass* IsA() const
                 Bool_t IsSymmetric() const
                 Bool_t IsValid() const
              TMatrixD& MakeSymmetric()
                   void Mult(const TMatrixD& a, const TMatrixD& b)
               Double_t Norm1() const
              TMatrixD& NormByColumn(const TVectorD& v, Option_t* option = "D")
              TMatrixD& NormByDiag(const TVectorD& v, Option_t* option = "D")
              TMatrixD& NormByRow(const TVectorD& v, Option_t* option = "D")
               Double_t NormInf() const
                 Bool_t operator!=(Double_t val) const
        const Double_t& operator()(Int_t rown, Int_t coln) const
              Double_t& operator()(Int_t rown, Int_t coln)
              TMatrixD& operator*=(const TMatrixDRow& row)
              TMatrixD& operator*=(const TMatrixDDiag& diag)
              TMatrixD& operator*=(Double_t val)
              TMatrixD& operator*=(const TMatrixD& source)
              TMatrixD& operator*=(const TMatrixDColumn& col)
              TMatrixD& operator+=(Double_t val)
              TMatrixD& operator-=(Double_t val)
              TMatrixD& operator/=(const TMatrixDDiag& diag)
              TMatrixD& operator/=(const TMatrixDColumn& col)
              TMatrixD& operator/=(const TMatrixDRow& row)
                 Bool_t operator<(Double_t val) const
                 Bool_t operator<=(Double_t val) const
              TMatrixD& operator=(Double_t val)
              TMatrixD& operator=(const TLazyMatrixD& source)
              TMatrixD& operator=(const TMatrixD& source)
                 Bool_t operator==(Double_t val) const
                 Bool_t operator>(Double_t val) const
                 Bool_t operator>=(Double_t val) const
      const TMatrixDRow operator[](Int_t rown) const
            TMatrixDRow operator[](Int_t rown)
           virtual void Print(Option_t* option) const
                   void ResizeTo(Int_t nrows, Int_t ncols)
                   void ResizeTo(Int_t row_lwb, Int_t row_upb, Int_t col_lwb, Int_t col_upb)
                   void ResizeTo(const TMatrixD& m)
               Double_t RowNorm() const
                   void SetElements(const Double_t* elements, Option_t* option)
           virtual void ShowMembers(TMemberInspector& insp, char* parent)
              TMatrixD& Sqr()
              TMatrixD& Sqrt()
           virtual void Streamer(TBuffer& b)
                   void StreamerNVirtual(TBuffer& b)
              TMatrixD& UnitMatrix()
              TMatrixD& Zero()

Data Members

    protected:

           Int_t fNrows     number of rows
           Int_t fNcols     number of columns
           Int_t fNelems    number of elements in matrix
           Int_t fRowLwb    lower bound of the row index
           Int_t fColLwb    lower bound of the col index
       Double_t* fElements  [fNelems] elements themselves
      Double_t** fIndex     ! index[i] = &matrix(0,i) (col index)

    public:

      static const TMatrixD::EMatrixCreatorsOp1 kZero            
      static const TMatrixD::EMatrixCreatorsOp1 kUnit            
      static const TMatrixD::EMatrixCreatorsOp1 kTransposed      
      static const TMatrixD::EMatrixCreatorsOp1 kInverted        
      static const TMatrixD::EMatrixCreatorsOp1 kInvertedPosDef  
      static const TMatrixD::EMatrixCreatorsOp2 kMult            
      static const TMatrixD::EMatrixCreatorsOp2 kTransposeMult   
      static const TMatrixD::EMatrixCreatorsOp2 kInvMult         
      static const TMatrixD::EMatrixCreatorsOp2 kInvPosDefMult   
      static const TMatrixD::EMatrixCreatorsOp2 kAtBA            

Class Description