Mercurial > octave
annotate liboctave/dDiagMatrix.h @ 8367:445d27d79f4e
support permutation matrix objects
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Thu, 04 Dec 2008 08:31:56 +0100 |
| parents | 8b1a2555c4e2 |
| children | c3f7e2549abb |
| rev | line source |
|---|---|
| 458 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1994, 1995, 1996, 1997, 2000, 2002, 2004, 2005, 2006, |
| 4 2007 John W. Eaton | |
| 458 | 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 | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 458 | 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 | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 458 | 21 |
| 22 */ | |
| 23 | |
| 24 #if !defined (octave_DiagMatrix_h) | |
| 25 #define octave_DiagMatrix_h 1 | |
| 26 | |
| 1989 | 27 #include "MDiagArray2.h" |
| 458 | 28 |
| 29 #include "dRowVector.h" | |
| 30 #include "dColVector.h" | |
| 31 | |
| 32 #include "mx-defs.h" | |
| 33 | |
| 3585 | 34 class |
| 6108 | 35 OCTAVE_API |
| 3585 | 36 DiagMatrix : public MDiagArray2<double> |
| 458 | 37 { |
| 38 friend class SVD; | |
| 39 friend class ComplexSVD; | |
| 40 | |
| 41 public: | |
| 42 | |
| 1989 | 43 DiagMatrix (void) : MDiagArray2<double> () { } |
| 3585 | 44 |
| 5275 | 45 DiagMatrix (octave_idx_type r, octave_idx_type c) : MDiagArray2<double> (r, c) { } |
| 3585 | 46 |
| 5275 | 47 DiagMatrix (octave_idx_type r, octave_idx_type c, double val) : MDiagArray2<double> (r, c, val) { } |
| 3585 | 48 |
| 49 DiagMatrix (const DiagMatrix& a) : MDiagArray2<double> (a) { } | |
| 50 | |
| 1989 | 51 DiagMatrix (const MDiagArray2<double>& a) : MDiagArray2<double> (a) { } |
| 3585 | 52 |
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implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
7789
diff
changeset
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53 template <class U> |
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parents:
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diff
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54 DiagMatrix (const DiagArray2<U>& a) : MDiagArray2<double> (a) { } |
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parents:
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diff
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|
55 |
| 3585 | 56 explicit DiagMatrix (const RowVector& a) : MDiagArray2<double> (a) { } |
| 57 | |
| 58 explicit DiagMatrix (const ColumnVector& a) : MDiagArray2<double> (a) { } | |
| 458 | 59 |
| 60 DiagMatrix& operator = (const DiagMatrix& a) | |
| 61 { | |
| 1989 | 62 MDiagArray2<double>::operator = (a); |
| 458 | 63 return *this; |
| 64 } | |
| 65 | |
| 2385 | 66 bool operator == (const DiagMatrix& a) const; |
| 67 bool operator != (const DiagMatrix& a) const; | |
| 458 | 68 |
| 69 DiagMatrix& fill (double val); | |
| 5275 | 70 DiagMatrix& fill (double val, octave_idx_type beg, octave_idx_type end); |
| 458 | 71 DiagMatrix& fill (const ColumnVector& a); |
| 72 DiagMatrix& fill (const RowVector& a); | |
| 5275 | 73 DiagMatrix& fill (const ColumnVector& a, octave_idx_type beg); |
| 74 DiagMatrix& fill (const RowVector& a, octave_idx_type beg); | |
| 458 | 75 |
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First attempt at single precision tyeps
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76 DiagMatrix transpose (void) const { return MDiagArray2<double>::transpose(); } |
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Jaroslav Hajek <highegg@gmail.com>
parents:
7789
diff
changeset
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77 DiagMatrix abs (void) const; |
| 458 | 78 |
| 6153 | 79 friend OCTAVE_API DiagMatrix real (const ComplexDiagMatrix& a); |
| 80 friend OCTAVE_API DiagMatrix imag (const ComplexDiagMatrix& a); | |
| 1205 | 81 |
| 1359 | 82 // resize is the destructive analog for this one |
| 458 | 83 |
| 5275 | 84 Matrix extract (octave_idx_type r1, octave_idx_type c1, octave_idx_type r2, octave_idx_type c2) const; |
| 458 | 85 |
| 1359 | 86 // extract row or column i. |
| 458 | 87 |
| 5275 | 88 RowVector row (octave_idx_type i) const; |
| 458 | 89 RowVector row (char *s) const; |
| 90 | |
| 5275 | 91 ColumnVector column (octave_idx_type i) const; |
| 458 | 92 ColumnVector column (char *s) const; |
| 93 | |
| 94 DiagMatrix inverse (void) const; | |
| 95 DiagMatrix inverse (int& info) const; | |
| 96 | |
| 1359 | 97 // other operations |
| 458 | 98 |
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99 ColumnVector diag (octave_idx_type k = 0) const; |
| 458 | 100 |
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8367
445d27d79f4e
support permutation matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
8366
diff
changeset
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101 bool is_identity (void) const; |
|
445d27d79f4e
support permutation matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
8366
diff
changeset
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102 |
| 1359 | 103 // i/o |
| 458 | 104 |
| 6153 | 105 friend OCTAVE_API std::ostream& operator << (std::ostream& os, const DiagMatrix& a); |
| 458 | 106 |
| 107 private: | |
| 108 | |
| 5275 | 109 DiagMatrix (double *d, octave_idx_type nr, octave_idx_type nc) : MDiagArray2<double> (d, nr, nc) { } |
| 458 | 110 }; |
| 111 | |
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8366
8b1a2555c4e2
implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
7789
diff
changeset
|
112 OCTAVE_API DiagMatrix real (const ComplexDiagMatrix& a); |
|
8b1a2555c4e2
implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
7789
diff
changeset
|
113 OCTAVE_API DiagMatrix imag (const ComplexDiagMatrix& a); |
|
8b1a2555c4e2
implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents:
7789
diff
changeset
|
114 |
| 3504 | 115 // diagonal matrix by diagonal matrix -> diagonal matrix operations |
| 116 | |
| 117 DiagMatrix | |
| 118 operator * (const DiagMatrix& a, const DiagMatrix& b); | |
| 119 | |
| 3580 | 120 MDIAGARRAY2_FORWARD_DEFS (MDiagArray2, DiagMatrix, double) |
| 121 | |
| 458 | 122 #endif |
| 123 | |
| 124 /* | |
| 125 ;;; Local Variables: *** | |
| 126 ;;; mode: C++ *** | |
| 127 ;;; End: *** | |
| 128 */ |