TMatrixDiag

class description - source file - inheritance tree

class TMatrixDiag : public TObject

    private:

      TMatrixDiag TMatrixDiag()

    public:

          TMatrixDiag TMatrixDiag(const TMatrix& matrix)
          TMatrixDiag TMatrixDiag(const TMatrixDiag&)
                 void ~TMatrixDiag()
       static TClass* Class()
                Int_t GetNdiags() const
      virtual TClass* IsA() const
        const Real_t& operator()(Int_t i) const
              Real_t& operator()(Int_t i)
                 void operator*=(Double_t val)
                 void operator+=(Double_t val)
                 void operator=(Real_t val)
                 void operator=(const TMatrixDiag& d)
                 void operator=(const TVector& vec)
         virtual void ShowMembers(TMemberInspector& insp, char* parent)
         virtual void Streamer(TBuffer& b)
                 void StreamerNVirtual(TBuffer& b)

Data Members

    private:

      const TMatrix* fMatrix  ! the matrix I am the diagonal of
               Int_t fInc     if ptr=@a[i,i], then ptr+inc = @a[i+1,i+1]
               Int_t fNdiag   number of diag elems, min(nrows,ncols)
             Real_t* fPtr     ! pointer to the a[0,0]

Class Description

                                                                      
 Matrix utility classes.                                              
                                                                      
 This file defines utility classes for the Linear Algebra Package.    
 The following classes are defined here:                              
   TMatrixAction                                                      
   TMatrixPosAction                                                   
   TLazyMatrix                                                        
   THaarMatrix                                                        
   TMatrixRow                                                         
   TMatrixColumn                                                      
   TMatrixDiag                                                        
   TMatrixPivoting
void Streamer(TBuffer &R__b) 
 Stream an object of class TMatrixDiag.
TMatrixDiag(const TMatrix &matrix) : fMatrix(&matrix), fInc(matrix.fNrows+1), fNdiag(TMath::Min(matrix.fNrows, matrix.fNcols))



Inline Functions

          TMatrixDiag TMatrixDiag(const TMatrix& matrix)
                 void operator=(Real_t val)
                 void operator+=(Double_t val)
                 void operator*=(Double_t val)
                 void operator=(const TMatrixDiag& d)
                 void operator=(const TVector& vec)
        const Real_t& operator()(Int_t i) const
              Real_t& operator()(Int_t i)
                Int_t GetNdiags() const
              TClass* Class()
              TClass* IsA() const
                 void ShowMembers(TMemberInspector& insp, char* parent)
                 void StreamerNVirtual(TBuffer& b)
          TMatrixDiag TMatrixDiag(const TMatrixDiag&)
                 void ~TMatrixDiag()

Author: Fons Rademakers 05/11/97
Last update: root/matrix:$Name: $:$Id: TMatrixUtils.cxx,v 1.7 2002/09/09 05:37:26 brun Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *

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