Mercurial > hg > octave-nkf
annotate liboctave/numeric/SparseQR.h @ 20750:3339c9bdfe6a
Activate FSAL property in dorpri timestepper
* scripts/ode/private/runge_kutta_45_dorpri.m: don't compute
first stage if values from previous iteration are passed.
* scripts/ode/private/integrate_adaptive.m: do not update
cmputed stages if timestep is rejected.
| author | Carlo de Falco <carlo.defalco@polimi.it> |
|---|---|
| date | Sat, 03 Oct 2015 07:32:50 +0200 |
| parents | 4197fc428c7d |
| children |
| rev | line source |
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| 5610 | 1 /* |
| 2 | |
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3 Copyright (C) 2005-2015 David Bateman |
| 5610 | 4 |
| 7016 | 5 This file is part of Octave. |
| 6 | |
| 5610 | 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 | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 5610 | 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 | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 5610 | 20 |
| 21 */ | |
| 22 | |
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23 #if !defined (octave_SparseQR_h) |
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24 #define octave_SparseQR_h 1 |
| 5610 | 25 |
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26 #include <iosfwd> |
| 5610 | 27 |
| 28 #include "dMatrix.h" | |
| 29 #include "CMatrix.h" | |
| 30 #include "dSparse.h" | |
| 31 #include "CSparse.h" | |
| 32 #include "oct-sparse.h" | |
| 33 | |
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34 #ifdef USE_64_BIT_IDX_T |
| 5648 | 35 #define CXSPARSE_DNAME(name) cs_dl ## name |
| 5610 | 36 #else |
| 5648 | 37 #define CXSPARSE_DNAME(name) cs_di ## name |
| 5610 | 38 #endif |
| 39 | |
| 40 class | |
| 6108 | 41 OCTAVE_API |
| 5610 | 42 SparseQR |
| 43 { | |
| 44 protected: | |
| 45 class SparseQR_rep | |
| 46 { | |
| 47 public: | |
| 48 SparseQR_rep (const SparseMatrix& a, int order); | |
| 49 | |
| 50 ~SparseQR_rep (void); | |
| 51 #ifdef HAVE_CXSPARSE | |
| 52 bool ok (void) const { return (N && S); } | |
| 53 #else | |
| 54 bool ok (void) const { return false; } | |
| 55 #endif | |
| 56 SparseMatrix V (void) const; | |
| 57 | |
| 58 ColumnVector Pinv (void) const; | |
| 59 | |
| 60 ColumnVector P (void) const; | |
| 61 | |
| 62 SparseMatrix R (const bool econ) const; | |
| 63 | |
| 64 Matrix C (const Matrix &b) const; | |
| 65 | |
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66 Matrix Q (void) const; |
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67 |
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68 octave_refcount<int> count; |
| 5610 | 69 |
| 70 octave_idx_type nrows; | |
| 71 #ifdef HAVE_CXSPARSE | |
| 5648 | 72 CXSPARSE_DNAME (s) *S; |
| 5610 | 73 |
| 5648 | 74 CXSPARSE_DNAME (n) *N; |
| 5610 | 75 #endif |
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76 |
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77 private: |
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78 |
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79 // No copying! |
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80 |
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81 SparseQR_rep (const SparseQR_rep&); |
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82 |
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83 SparseQR_rep& operator = (const SparseQR_rep&); |
| 5610 | 84 }; |
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85 |
| 5610 | 86 private: |
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87 |
| 5610 | 88 SparseQR_rep *rep; |
| 89 | |
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90 public: |
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91 |
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92 SparseQR (void) : rep (new SparseQR_rep (SparseMatrix (), 0)) { } |
| 5610 | 93 |
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94 SparseQR (const SparseMatrix& a, int order = 0) : |
| 5610 | 95 rep (new SparseQR_rep (a, order)) { } |
| 96 | |
| 97 SparseQR (const SparseQR& a) : rep (a.rep) { rep->count++; } | |
| 98 | |
| 99 ~SparseQR (void) | |
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100 { |
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101 if (--rep->count == 0) |
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102 delete rep; |
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103 } |
| 5610 | 104 |
| 105 SparseQR& operator = (const SparseQR& a) | |
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106 { |
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107 if (this != &a) |
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108 { |
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109 if (--rep->count == 0) |
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110 delete rep; |
| 5610 | 111 |
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112 rep = a.rep; |
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113 rep->count++; |
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114 } |
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115 return *this; |
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116 } |
| 5610 | 117 |
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118 bool ok (void) const { return rep->ok (); } |
| 5610 | 119 |
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120 SparseMatrix V (void) const { return rep->V (); } |
| 5610 | 121 |
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122 ColumnVector Pinv (void) const { return rep->P (); } |
| 5610 | 123 |
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124 ColumnVector P (void) const { return rep->P (); } |
| 5610 | 125 |
| 126 SparseMatrix R (const bool econ = false) const { return rep->R(econ); } | |
| 127 | |
| 128 Matrix C (const Matrix &b) const { return rep->C(b); } | |
| 129 | |
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130 Matrix Q (void) const { return rep->Q (); } |
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131 |
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132 friend Matrix qrsolve (const SparseMatrix &a, const Matrix &b, |
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133 octave_idx_type &info); |
| 5610 | 134 |
| 135 friend SparseMatrix qrsolve (const SparseMatrix &a, const SparseMatrix &b, | |
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136 octave_idx_type &info); |
| 5610 | 137 |
| 138 friend ComplexMatrix qrsolve (const SparseMatrix &a, const ComplexMatrix &b, | |
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139 octave_idx_type &info); |
| 5610 | 140 |
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141 friend SparseComplexMatrix qrsolve (const SparseMatrix &a, |
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142 const SparseComplexMatrix &b, |
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143 octave_idx_type &info); |
| 5610 | 144 |
| 145 protected: | |
| 146 #ifdef HAVE_CXSPARSE | |
| 5648 | 147 CXSPARSE_DNAME (s) * S (void) { return rep->S; } |
| 5610 | 148 |
| 5648 | 149 CXSPARSE_DNAME (n) * N (void) { return rep->N; } |
| 5610 | 150 #endif |
| 151 }; | |
| 152 | |
| 5713 | 153 |
| 154 // Publish externally used friend functions. | |
| 155 | |
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156 extern Matrix qrsolve (const SparseMatrix &a, const Matrix &b, |
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157 octave_idx_type &info); |
| 5713 | 158 |
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159 extern Matrix qrsolve (const SparseMatrix &a, const MArray<double> &b, |
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160 octave_idx_type &info); |
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161 |
| 5713 | 162 extern SparseMatrix qrsolve (const SparseMatrix &a, const SparseMatrix &b, |
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163 octave_idx_type &info); |
| 5713 | 164 |
| 165 extern ComplexMatrix qrsolve (const SparseMatrix &a, const ComplexMatrix &b, | |
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166 octave_idx_type &info); |
| 5713 | 167 |
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168 extern ComplexMatrix qrsolve (const SparseMatrix &a, const MArray<Complex> &b, |
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169 octave_idx_type &info); |
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170 |
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171 extern SparseComplexMatrix qrsolve (const SparseMatrix &a, |
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172 const SparseComplexMatrix &b, |
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173 octave_idx_type &info); |
| 5713 | 174 |
| 5610 | 175 #endif |