GNU Octave  3.8.0
A high-level interpreted language, primarily intended for numerical computations, mostly compatible with Matlab
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dbleSCHUR.h
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1 /*
2 
3 Copyright (C) 1994-2013 John W. Eaton
4 
5 This file is part of Octave.
6 
7 Octave is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 3 of the License, or (at your
10 option) any later version.
11 
12 Octave is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
16 
17 You should have received a copy of the GNU General Public License
18 along with Octave; see the file COPYING. If not, see
19 <http://www.gnu.org/licenses/>.
20 
21 */
22 
23 #if !defined (octave_dbleSCHUR_h)
24 #define octave_dbleSCHUR_h 1
25 
26 #include <iosfwd>
27 #include <string>
28 
29 #include "dMatrix.h"
30 
31 class
32 OCTAVE_API
33 SCHUR
34 {
35 public:
36 
37  SCHUR (void) : schur_mat (), unitary_mat (), selector (0) { }
38 
39  SCHUR (const Matrix& a, const std::string& ord, bool calc_unitary = true)
40  : schur_mat (), unitary_mat (), selector (0)
41  {
42  init (a, ord, calc_unitary);
43  }
44 
45  SCHUR (const Matrix& a, const std::string& ord, int& info,
46  bool calc_unitary = true)
47  : schur_mat (), unitary_mat (), selector (0)
48  {
49  info = init (a, ord, calc_unitary);
50  }
51 
52  SCHUR (const SCHUR& a)
53  : schur_mat (a.schur_mat), unitary_mat (a.unitary_mat), selector (0)
54  { }
55 
56  SCHUR (const Matrix& s, const Matrix& u);
57 
58  SCHUR& operator = (const SCHUR& a)
59  {
60  if (this != &a)
61  {
62  schur_mat = a.schur_mat;
63  unitary_mat = a.unitary_mat;
64  }
65  return *this;
66  }
67 
68  ~SCHUR (void) { }
69 
70  Matrix schur_matrix (void) const { return schur_mat; }
71 
72  Matrix unitary_matrix (void) const { return unitary_mat; }
73 
74  friend std::ostream& operator << (std::ostream& os, const SCHUR& a);
75 
76  typedef octave_idx_type (*select_function) (const double&, const double&);
77 
78 private:
79 
82 
83  select_function selector;
84 
85  octave_idx_type init (const Matrix& a, const std::string& ord,
86  bool calc_unitary);
87 };
88 
89 #endif