/usr/include/octave-4.2.2/octave/schur.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 99 100 101 102 103 104 105 106 | /*
Copyright (C) 1994-2017 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_schur_h)
#define octave_schur_h 1
#include "octave-config.h"
#include <string>
#include "dMatrix.h"
#include "CMatrix.h"
#include "fMatrix.h"
#include "fCMatrix.h"
namespace octave
{
namespace math
{
template <typename T> class schur;
template <typename T>
class
schur
{
public:
schur (void) : schur_mat (), unitary_mat () { }
schur (const T& a, const std::string& ord, bool calc_unitary = true)
: schur_mat (), unitary_mat ()
{
init (a, ord, calc_unitary);
}
schur (const T& a, const std::string& ord, octave_idx_type& info,
bool calc_unitary = true)
: schur_mat (), unitary_mat ()
{
info = init (a, ord, calc_unitary);
}
// This one should really be protected or private but we need it in
// rsf2csf and I don't see how to make that function a friend of
// this class.
schur (const T& s, const T& u) : schur_mat (s), unitary_mat (u) { }
schur (const schur& a)
: schur_mat (a.schur_mat), unitary_mat (a.unitary_mat)
{ }
schur& operator = (const schur& a)
{
if (this != &a)
{
schur_mat = a.schur_mat;
unitary_mat = a.unitary_mat;
}
return *this;
}
~schur (void) { }
T schur_matrix (void) const { return schur_mat; }
T unitary_matrix (void) const { return unitary_mat; }
protected:
private:
T schur_mat;
T unitary_mat;
octave_idx_type
init (const T& a, const std::string& ord, bool calc_unitary);
};
template <typename RT, typename AT>
extern schur<RT>
rsf2csf (const AT& s, const AT& u);
}
}
#endif
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