/usr/include/octave-4.2.2/octave/sparse-chol.h is in liboctave-dev 4.2.2-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 | /*
Copyright (C) 2016-2017 John W. Eaton
Copyright (C) 2005-2016 David Bateman
Copyright (C) 1998-2005 Andy Adler
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_sparse_chol_h)
#define octave_sparse_chol_h 1
#include "octave-config.h"
#include "CSparse.h"
#include "dRowVector.h"
#include "dSparse.h"
namespace octave
{
namespace math
{
// If the sparse matrix classes become templated on the element type
// (i.e., sparse_matrix<double>), then it might be best to make the
// template parameter of this class also be the element type instead
// of the matrix type.
template <typename chol_type>
class
sparse_chol
{
public:
sparse_chol (void);
sparse_chol (const chol_type& a, bool natural, bool force);
sparse_chol (const chol_type& a, octave_idx_type& info,
bool natural, bool force);
sparse_chol (const chol_type& a, octave_idx_type& info, bool natural);
sparse_chol (const chol_type& a, octave_idx_type& info);
sparse_chol (const sparse_chol<chol_type>& a);
virtual ~sparse_chol (void);
sparse_chol& operator = (const sparse_chol& a);
chol_type L (void) const;
chol_type R (void) const { return L ().hermitian (); }
octave_idx_type P (void) const;
RowVector perm (void) const;
SparseMatrix Q (void) const;
bool is_positive_definite (void) const;
double rcond (void) const;
chol_type inverse (void) const;
protected:
typedef typename chol_type::element_type chol_elt;
class sparse_chol_rep;
private:
sparse_chol_rep *rep;
};
template <typename chol_type>
chol_type
chol2inv (const chol_type& r);
// SparseComplexMatrix specialization.
template <>
sparse_chol<SparseComplexMatrix>::sparse_chol
(const SparseComplexMatrix& a, octave_idx_type& info);
}
}
#endif
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