GNU Octave  3.8.0
A high-level interpreted language, primarily intended for numerical computations, mostly compatible with Matlab
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dbleQR.h
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1 /*
2 
3 Copyright (C) 1994-2013 John W. Eaton
4 Copyright (C) 2008-2009 Jaroslav Hajek
5 
6 This file is part of Octave.
7 
8 Octave is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 3 of the License, or (at your
11 option) any later version.
12 
13 Octave is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17 
18 You should have received a copy of the GNU General Public License
19 along with Octave; see the file COPYING. If not, see
20 <http://www.gnu.org/licenses/>.
21 
22 */
23 
24 #if !defined (octave_dbleQR_h)
25 #define octave_dbleQR_h 1
26 
27 #include <iosfwd>
28 
29 #include "dMatrix.h"
30 #include "dColVector.h"
31 #include "dRowVector.h"
32 #include "base-qr.h"
33 
34 class
35 OCTAVE_API
36 QR : public base_qr<Matrix>
37 {
38 public:
39 
40  // Import them here to allow the QR:: prefix.
41  typedef qr_type_t type;
42 
43  static const type std = qr_type_std;
44  static const type raw = qr_type_raw;
45  static const type economy = qr_type_economy;
46 
47  QR (void) : base_qr<Matrix> () { }
48 
49  QR (const Matrix&, qr_type_t = qr_type_std);
50 
51  QR (const Matrix& qx, const Matrix& rx)
52  : base_qr<Matrix> (qx, rx) { }
53 
54  QR (const QR& a) : base_qr<Matrix> (a) { }
55 
56  void init (const Matrix&, qr_type_t);
57 
58  void update (const ColumnVector& u, const ColumnVector& v);
59 
60  void update (const Matrix& u, const Matrix& v);
61 
62  void insert_col (const ColumnVector& u, octave_idx_type j);
63 
64  void insert_col (const Matrix& u, const Array<octave_idx_type>& j);
65 
66  void delete_col (octave_idx_type j);
67 
68  void delete_col (const Array<octave_idx_type>& j);
69 
70  void insert_row (const RowVector& u, octave_idx_type j);
71 
72  void delete_row (octave_idx_type j);
73 
74  void shift_cols (octave_idx_type i, octave_idx_type j);
75 
76 protected:
77 
78  void form (octave_idx_type n, Matrix& afact,
79  double *tau, qr_type_t qr_type);
80 };
81 
82 #endif