/usr/include/octave-4.2.2/octave/lu.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 | /*
Copyright (C) 1996-2017 John W. Eaton
Copyright (C) 2009 VZLU Prague
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_lu_h)
#define octave_lu_h 1
#include "octave-config.h"
#include "PermMatrix.h"
namespace octave
{
namespace math
{
template <typename T>
class
lu
{
public:
typedef typename T::column_vector_type VT;
typedef typename T::element_type ELT_T;
lu (void)
: a_fact (), l_fact (), ipvt () { }
lu (const T& a);
lu (const lu& a)
: a_fact (a.a_fact), l_fact (a.l_fact), ipvt (a.ipvt) { }
lu (const T& l, const T& u, const PermMatrix& p);
lu& operator = (const lu& a)
{
if (this != &a)
{
a_fact = a.a_fact;
l_fact = a.l_fact;
ipvt = a.ipvt;
}
return *this;
}
virtual ~lu (void) { }
bool packed (void) const;
void unpack (void);
T L (void) const;
T U (void) const;
T Y (void) const;
PermMatrix P (void) const;
ColumnVector P_vec (void) const;
bool regular (void) const;
void update (const VT& u, const VT& v);
void update (const T& u, const T& v);
void update_piv (const VT& u, const VT& v);
void update_piv (const T& u, const T& v);
protected:
Array<octave_idx_type> getp (void) const;
T a_fact;
T l_fact;
Array<octave_idx_type> ipvt;
};
}
}
#endif
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