/usr/include/octave-3.8.1/octave/dDiagMatrix.h is in liboctave-dev 3.8.1-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Copyright (C) 1994-2013 John W. Eaton
This file is part of Octave.
Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
Octave is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING. If not, see
<http://www.gnu.org/licenses/>.
*/
#if !defined (octave_dDiagMatrix_h)
#define octave_dDiagMatrix_h 1
#include "MDiagArray2.h"
#include "dRowVector.h"
#include "dColVector.h"
#include "DET.h"
#include "mx-defs.h"
class
OCTAVE_API
DiagMatrix : public MDiagArray2<double>
{
friend class SVD;
friend class ComplexSVD;
public:
DiagMatrix (void) : MDiagArray2<double> () { }
DiagMatrix (octave_idx_type r, octave_idx_type c)
: MDiagArray2<double> (r, c) { }
DiagMatrix (octave_idx_type r, octave_idx_type c, double val)
: MDiagArray2<double> (r, c, val) { }
DiagMatrix (const DiagMatrix& a) : MDiagArray2<double> (a) { }
DiagMatrix (const MDiagArray2<double>& a) : MDiagArray2<double> (a) { }
template <class U>
DiagMatrix (const DiagArray2<U>& a) : MDiagArray2<double> (a) { }
explicit DiagMatrix (const Array<double>& a) : MDiagArray2<double> (a) { }
DiagMatrix (const Array<double>& a, octave_idx_type r, octave_idx_type c)
: MDiagArray2<double> (a, r, c) { }
DiagMatrix& operator = (const DiagMatrix& a)
{
MDiagArray2<double>::operator = (a);
return *this;
}
bool operator == (const DiagMatrix& a) const;
bool operator != (const DiagMatrix& a) const;
DiagMatrix& fill (double val);
DiagMatrix& fill (double val, octave_idx_type beg, octave_idx_type end);
DiagMatrix& fill (const ColumnVector& a);
DiagMatrix& fill (const RowVector& a);
DiagMatrix& fill (const ColumnVector& a, octave_idx_type beg);
DiagMatrix& fill (const RowVector& a, octave_idx_type beg);
DiagMatrix transpose (void) const
{ return MDiagArray2<double>::transpose (); }
DiagMatrix abs (void) const;
friend OCTAVE_API DiagMatrix real (const ComplexDiagMatrix& a);
friend OCTAVE_API DiagMatrix imag (const ComplexDiagMatrix& a);
// resize is the destructive analog for this one
Matrix extract (octave_idx_type r1, octave_idx_type c1,
octave_idx_type r2, octave_idx_type c2) const;
// extract row or column i.
RowVector row (octave_idx_type i) const;
RowVector row (char *s) const;
ColumnVector column (octave_idx_type i) const;
ColumnVector column (char *s) const;
DiagMatrix inverse (void) const;
DiagMatrix inverse (octave_idx_type& info) const;
DiagMatrix pseudo_inverse (void) const;
// other operations
ColumnVector extract_diag (octave_idx_type k = 0) const
{ return MDiagArray2<double>::extract_diag (k); }
DET determinant (void) const;
double rcond (void) const;
// i/o
friend OCTAVE_API std::ostream& operator << (std::ostream& os,
const DiagMatrix& a);
};
OCTAVE_API DiagMatrix real (const ComplexDiagMatrix& a);
OCTAVE_API DiagMatrix imag (const ComplexDiagMatrix& a);
// diagonal matrix by diagonal matrix -> diagonal matrix operations
OCTAVE_API DiagMatrix
operator * (const DiagMatrix& a, const DiagMatrix& b);
MDIAGARRAY2_FORWARD_DEFS (MDiagArray2, DiagMatrix, double)
#endif
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