Mercurial > octave
annotate liboctave/dDiagMatrix.h @ 7789:82be108cc558
First attempt at single precision tyeps
* * *
corrections to qrupdate single precision routines
* * *
prefer demotion to single over promotion to double
* * *
Add single precision support to log2 function
* * *
Trivial PROJECT file update
* * *
Cache optimized hermitian/transpose methods
* * *
Add tests for tranpose/hermitian and ChangeLog entry for new transpose code
| author | David Bateman <dbateman@free.fr> |
|---|---|
| date | Sun, 27 Apr 2008 22:34:17 +0200 |
| parents | 36594d5bbe13 |
| children | 8b1a2555c4e2 |
| 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 |
| 53 explicit DiagMatrix (const RowVector& a) : MDiagArray2<double> (a) { } | |
| 54 | |
| 55 explicit DiagMatrix (const ColumnVector& a) : MDiagArray2<double> (a) { } | |
| 458 | 56 |
| 57 DiagMatrix& operator = (const DiagMatrix& a) | |
| 58 { | |
| 1989 | 59 MDiagArray2<double>::operator = (a); |
| 458 | 60 return *this; |
| 61 } | |
| 62 | |
| 2385 | 63 bool operator == (const DiagMatrix& a) const; |
| 64 bool operator != (const DiagMatrix& a) const; | |
| 458 | 65 |
| 66 DiagMatrix& fill (double val); | |
| 5275 | 67 DiagMatrix& fill (double val, octave_idx_type beg, octave_idx_type end); |
| 458 | 68 DiagMatrix& fill (const ColumnVector& a); |
| 69 DiagMatrix& fill (const RowVector& a); | |
| 5275 | 70 DiagMatrix& fill (const ColumnVector& a, octave_idx_type beg); |
| 71 DiagMatrix& fill (const RowVector& a, octave_idx_type beg); | |
| 458 | 72 |
|
7789
82be108cc558
First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
7620
diff
changeset
|
73 DiagMatrix transpose (void) const { return MDiagArray2<double>::transpose(); } |
| 458 | 74 |
| 6153 | 75 friend OCTAVE_API DiagMatrix real (const ComplexDiagMatrix& a); |
| 76 friend OCTAVE_API DiagMatrix imag (const ComplexDiagMatrix& a); | |
| 1205 | 77 |
| 1359 | 78 // resize is the destructive analog for this one |
| 458 | 79 |
| 5275 | 80 Matrix extract (octave_idx_type r1, octave_idx_type c1, octave_idx_type r2, octave_idx_type c2) const; |
| 458 | 81 |
| 1359 | 82 // extract row or column i. |
| 458 | 83 |
| 5275 | 84 RowVector row (octave_idx_type i) const; |
| 458 | 85 RowVector row (char *s) const; |
| 86 | |
| 5275 | 87 ColumnVector column (octave_idx_type i) const; |
| 458 | 88 ColumnVector column (char *s) const; |
| 89 | |
| 90 DiagMatrix inverse (void) const; | |
| 91 DiagMatrix inverse (int& info) const; | |
| 92 | |
| 1359 | 93 // other operations |
| 458 | 94 |
|
7620
36594d5bbe13
Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents:
7017
diff
changeset
|
95 ColumnVector diag (octave_idx_type k = 0) const; |
| 458 | 96 |
| 1359 | 97 // i/o |
| 458 | 98 |
| 6153 | 99 friend OCTAVE_API std::ostream& operator << (std::ostream& os, const DiagMatrix& a); |
| 458 | 100 |
| 101 private: | |
| 102 | |
| 5275 | 103 DiagMatrix (double *d, octave_idx_type nr, octave_idx_type nc) : MDiagArray2<double> (d, nr, nc) { } |
| 458 | 104 }; |
| 105 | |
| 3504 | 106 // diagonal matrix by diagonal matrix -> diagonal matrix operations |
| 107 | |
| 108 DiagMatrix | |
| 109 operator * (const DiagMatrix& a, const DiagMatrix& b); | |
| 110 | |
| 3580 | 111 MDIAGARRAY2_FORWARD_DEFS (MDiagArray2, DiagMatrix, double) |
| 112 | |
| 458 | 113 #endif |
| 114 | |
| 115 /* | |
| 116 ;;; Local Variables: *** | |
| 117 ;;; mode: C++ *** | |
| 118 ;;; End: *** | |
| 119 */ |