Mercurial > octave
annotate liboctave/array/dSparse.cc @ 17679:c81debf315e0
Avoid use of numel in sparse matrix min/max functions
* dSparse.cc (SparseMatrix SparseMatrix::max (Array<octave_idx-type>&, int)) :
Remove use of numel
(SparseMatrix SparseMatrix::min (Array<octave_idx-type>&, int)) : ditto
* CSparse.cc (SparseComplexMatrix SparseComplexMatrix::max (
Array<octave_idx-type>&, int)) : Remove use of numel
(SparseComplexMatrix SparseComplexMatrix::min (Array<octave_idx-type>&,
int)) : ditto
| author | David Bateman <dbateman@free.fr> |
|---|---|
| date | Thu, 17 Oct 2013 23:07:34 +0200 |
| parents | 6aafe87a3144 |
| children | 93e272018df2 |
| rev | line source |
|---|---|
| 5164 | 1 /* |
| 2 | |
|
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3 Copyright (C) 2004-2012 David Bateman |
| 11523 | 4 Copyright (C) 1998-2004 Andy Adler |
|
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5 Copyright (C) 2010 VZLU Prague |
| 7016 | 6 |
| 7 This file is part of Octave. | |
| 5164 | 8 |
| 9 Octave is free software; you can redistribute it and/or modify it | |
| 10 under the terms of the GNU General Public License as published by the | |
| 7016 | 11 Free Software Foundation; either version 3 of the License, or (at your |
| 12 option) any later version. | |
| 5164 | 13 |
| 14 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 17 for more details. | |
| 18 | |
| 19 You should have received a copy of the GNU General Public License | |
| 7016 | 20 along with Octave; see the file COPYING. If not, see |
| 21 <http://www.gnu.org/licenses/>. | |
| 5164 | 22 |
| 23 */ | |
| 24 | |
| 25 #ifdef HAVE_CONFIG_H | |
| 26 #include <config.h> | |
| 27 #endif | |
| 28 | |
| 29 #include <cfloat> | |
| 30 | |
| 31 #include <iostream> | |
| 32 #include <vector> | |
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33 #include <functional> |
| 5164 | 34 |
| 35 #include "quit.h" | |
| 36 #include "lo-ieee.h" | |
| 37 #include "lo-mappers.h" | |
| 38 #include "f77-fcn.h" | |
| 39 #include "dRowVector.h" | |
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40 #include "oct-locbuf.h" |
| 5164 | 41 |
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42 #include "dDiagMatrix.h" |
| 5164 | 43 #include "CSparse.h" |
| 44 #include "boolSparse.h" | |
| 45 #include "dSparse.h" | |
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46 #include "functor.h" |
| 5164 | 47 #include "oct-spparms.h" |
| 48 #include "SparsedbleLU.h" | |
| 5785 | 49 #include "MatrixType.h" |
| 5451 | 50 #include "oct-sparse.h" |
| 5506 | 51 #include "sparse-util.h" |
| 52 #include "SparsedbleCHOL.h" | |
| 5610 | 53 #include "SparseQR.h" |
| 5164 | 54 |
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55 #include "Sparse-diag-op-defs.h" |
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56 |
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57 #include "Sparse-perm-op-defs.h" |
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58 |
| 5681 | 59 // Define whether to use a basic QR solver or one that uses a Dulmange |
| 60 // Mendelsohn factorization to seperate the problem into under-determined, | |
| 61 // well-determined and over-determined parts and solves them seperately | |
| 62 #ifndef USE_QRSOLVE | |
| 63 #include "sparse-dmsolve.cc" | |
| 64 #endif | |
| 65 | |
| 5164 | 66 // Fortran functions we call. |
| 67 extern "C" | |
| 68 { | |
| 69 F77_RET_T | |
| 6242 | 70 F77_FUNC (dgbtrf, DGBTRF) (const octave_idx_type&, const octave_idx_type&, |
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71 const octave_idx_type&, const octave_idx_type&, |
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72 double*, const octave_idx_type&, |
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73 octave_idx_type*, octave_idx_type&); |
| 5164 | 74 |
| 75 F77_RET_T | |
| 11518 | 76 F77_FUNC (dgbtrs, DGBTRS) (F77_CONST_CHAR_ARG_DECL, |
| 77 const octave_idx_type&, const octave_idx_type&, | |
| 78 const octave_idx_type&, const octave_idx_type&, | |
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79 const double*, const octave_idx_type&, |
| 11518 | 80 const octave_idx_type*, double*, |
| 81 const octave_idx_type&, octave_idx_type& | |
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82 F77_CHAR_ARG_LEN_DECL); |
| 5164 | 83 |
| 84 F77_RET_T | |
| 11518 | 85 F77_FUNC (dgbcon, DGBCON) (F77_CONST_CHAR_ARG_DECL, |
| 86 const octave_idx_type&, const octave_idx_type&, | |
| 87 const octave_idx_type&, double*, | |
| 88 const octave_idx_type&, const octave_idx_type*, | |
| 89 const double&, double&, double*, | |
| 90 octave_idx_type*, octave_idx_type& | |
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91 F77_CHAR_ARG_LEN_DECL); |
| 5164 | 92 |
| 93 F77_RET_T | |
| 11518 | 94 F77_FUNC (dpbtrf, DPBTRF) (F77_CONST_CHAR_ARG_DECL, |
| 95 const octave_idx_type&, const octave_idx_type&, | |
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96 double*, const octave_idx_type&, octave_idx_type& |
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97 F77_CHAR_ARG_LEN_DECL); |
| 5164 | 98 |
| 99 F77_RET_T | |
| 11518 | 100 F77_FUNC (dpbtrs, DPBTRS) (F77_CONST_CHAR_ARG_DECL, |
| 101 const octave_idx_type&, const octave_idx_type&, | |
| 102 const octave_idx_type&, double*, | |
| 103 const octave_idx_type&, double*, | |
| 104 const octave_idx_type&, octave_idx_type& | |
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105 F77_CHAR_ARG_LEN_DECL); |
| 5164 | 106 |
| 107 F77_RET_T | |
| 11518 | 108 F77_FUNC (dpbcon, DPBCON) (F77_CONST_CHAR_ARG_DECL, |
| 109 const octave_idx_type&, const octave_idx_type&, | |
| 110 double*, const octave_idx_type&, | |
| 111 const double&, double&, double*, | |
| 112 octave_idx_type*, octave_idx_type& | |
| 113 F77_CHAR_ARG_LEN_DECL); | |
| 114 F77_RET_T | |
| 115 F77_FUNC (dptsv, DPTSV) (const octave_idx_type&, const octave_idx_type&, | |
| 116 double*, double*, double*, const octave_idx_type&, | |
| 117 octave_idx_type&); | |
| 5164 | 118 |
| 119 F77_RET_T | |
| 11518 | 120 F77_FUNC (dgtsv, DGTSV) (const octave_idx_type&, const octave_idx_type&, |
| 121 double*, double*, double*, double*, | |
| 122 const octave_idx_type&, octave_idx_type&); | |
| 5164 | 123 |
| 124 F77_RET_T | |
| 11518 | 125 F77_FUNC (dgttrf, DGTTRF) (const octave_idx_type&, double*, double*, |
| 126 double*, double*, octave_idx_type*, | |
| 127 octave_idx_type&); | |
| 128 | |
| 129 F77_RET_T | |
| 130 F77_FUNC (dgttrs, DGTTRS) (F77_CONST_CHAR_ARG_DECL, | |
| 131 const octave_idx_type&, const octave_idx_type&, | |
| 132 const double*, const double*, const double*, | |
| 133 const double*, const octave_idx_type*, | |
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134 double *, const octave_idx_type&, octave_idx_type& |
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135 F77_CHAR_ARG_LEN_DECL); |
| 5164 | 136 |
| 137 F77_RET_T | |
| 11518 | 138 F77_FUNC (zptsv, ZPTSV) (const octave_idx_type&, const octave_idx_type&, |
| 139 double*, Complex*, Complex*, const octave_idx_type&, | |
| 140 octave_idx_type&); | |
| 5164 | 141 |
| 142 F77_RET_T | |
| 11518 | 143 F77_FUNC (zgtsv, ZGTSV) (const octave_idx_type&, const octave_idx_type&, |
| 144 Complex*, Complex*, Complex*, Complex*, | |
| 145 const octave_idx_type&, octave_idx_type&); | |
| 5164 | 146 |
| 147 } | |
| 148 | |
| 149 SparseMatrix::SparseMatrix (const SparseBoolMatrix &a) | |
| 5681 | 150 : MSparse<double> (a.rows (), a.cols (), a.nnz ()) |
| 5164 | 151 { |
| 5275 | 152 octave_idx_type nc = cols (); |
| 5681 | 153 octave_idx_type nz = a.nnz (); |
| 5275 | 154 |
| 155 for (octave_idx_type i = 0; i < nc + 1; i++) | |
| 5164 | 156 cidx (i) = a.cidx (i); |
| 157 | |
| 5275 | 158 for (octave_idx_type i = 0; i < nz; i++) |
| 5164 | 159 { |
| 160 data (i) = a.data (i); | |
| 161 ridx (i) = a.ridx (i); | |
| 162 } | |
| 163 } | |
| 164 | |
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165 SparseMatrix::SparseMatrix (const DiagMatrix& a) |
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166 : MSparse<double> (a.rows (), a.cols (), a.length ()) |
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167 { |
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168 octave_idx_type j = 0, l = a.length (); |
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169 for (octave_idx_type i = 0; i < l; i++) |
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170 { |
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171 cidx (i) = j; |
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172 if (a(i, i) != 0.0) |
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173 { |
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174 data (j) = a(i, i); |
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175 ridx (j) = i; |
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176 j++; |
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177 } |
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178 } |
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179 for (octave_idx_type i = l; i <= a.cols (); i++) |
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180 cidx (i) = j; |
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181 } |
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182 |
| 5164 | 183 bool |
| 184 SparseMatrix::operator == (const SparseMatrix& a) const | |
| 185 { | |
| 5275 | 186 octave_idx_type nr = rows (); |
| 187 octave_idx_type nc = cols (); | |
| 5681 | 188 octave_idx_type nz = nnz (); |
| 5275 | 189 octave_idx_type nr_a = a.rows (); |
| 190 octave_idx_type nc_a = a.cols (); | |
| 5681 | 191 octave_idx_type nz_a = a.nnz (); |
| 5164 | 192 |
| 193 if (nr != nr_a || nc != nc_a || nz != nz_a) | |
| 194 return false; | |
| 195 | |
| 5275 | 196 for (octave_idx_type i = 0; i < nc + 1; i++) |
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197 if (cidx (i) != a.cidx (i)) |
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198 return false; |
| 5164 | 199 |
| 5275 | 200 for (octave_idx_type i = 0; i < nz; i++) |
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201 if (data (i) != a.data (i) || ridx (i) != a.ridx (i)) |
| 5164 | 202 return false; |
| 203 | |
| 204 return true; | |
| 205 } | |
| 206 | |
| 207 bool | |
| 208 SparseMatrix::operator != (const SparseMatrix& a) const | |
| 209 { | |
| 210 return !(*this == a); | |
| 211 } | |
| 212 | |
| 213 bool | |
| 214 SparseMatrix::is_symmetric (void) const | |
| 215 { | |
| 6207 | 216 octave_idx_type nr = rows (); |
| 217 octave_idx_type nc = cols (); | |
| 218 | |
| 219 if (nr == nc && nr > 0) | |
| 5164 | 220 { |
| 6207 | 221 for (octave_idx_type j = 0; j < nc; j++) |
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222 { |
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223 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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224 { |
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225 octave_idx_type ri = ridx (i); |
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226 |
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227 if (ri != j) |
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228 { |
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229 bool found = false; |
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230 |
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231 for (octave_idx_type k = cidx (ri); k < cidx (ri+1); k++) |
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232 { |
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233 if (ridx (k) == j) |
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234 { |
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235 if (data (i) == data (k)) |
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236 found = true; |
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237 break; |
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238 } |
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239 } |
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240 |
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241 if (! found) |
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242 return false; |
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243 } |
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244 } |
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245 } |
| 5164 | 246 |
| 247 return true; | |
| 248 } | |
| 249 | |
| 250 return false; | |
| 251 } | |
| 252 | |
| 253 SparseMatrix& | |
| 5275 | 254 SparseMatrix::insert (const SparseMatrix& a, octave_idx_type r, octave_idx_type c) |
| 5164 | 255 { |
| 256 MSparse<double>::insert (a, r, c); | |
| 257 return *this; | |
| 258 } | |
| 259 | |
| 6823 | 260 SparseMatrix& |
| 261 SparseMatrix::insert (const SparseMatrix& a, const Array<octave_idx_type>& indx) | |
| 262 { | |
| 263 MSparse<double>::insert (a, indx); | |
| 264 return *this; | |
| 265 } | |
| 266 | |
| 5164 | 267 SparseMatrix |
| 268 SparseMatrix::max (int dim) const | |
| 269 { | |
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270 Array<octave_idx_type> dummy_idx; |
| 5164 | 271 return max (dummy_idx, dim); |
| 272 } | |
| 273 | |
| 274 SparseMatrix | |
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275 SparseMatrix::max (Array<octave_idx_type>& idx_arg, int dim) const |
| 5164 | 276 { |
| 277 SparseMatrix result; | |
| 278 dim_vector dv = dims (); | |
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279 octave_idx_type nr = dv(0); |
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280 octave_idx_type nc = dv(1); |
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281 |
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282 if (nr == 0 || nc == 0 || dim >= dv.length ()) |
| 5164 | 283 return result; |
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284 |
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285 if (dim < 0) |
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286 dim = dv.first_non_singleton (); |
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287 |
| 5164 | 288 if (dim == 0) |
| 289 { | |
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290 idx_arg.clear (1, nc); |
| 5275 | 291 octave_idx_type nel = 0; |
| 292 for (octave_idx_type j = 0; j < nc; j++) | |
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293 { |
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294 double tmp_max = octave_NaN; |
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295 octave_idx_type idx_j = 0; |
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296 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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297 { |
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298 if (ridx (i) != idx_j) |
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299 break; |
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300 else |
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301 idx_j++; |
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302 } |
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303 |
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304 if (idx_j != nr) |
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305 tmp_max = 0.; |
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306 |
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307 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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308 { |
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309 double tmp = data (i); |
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310 |
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311 if (xisnan (tmp)) |
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312 continue; |
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313 else if (xisnan (tmp_max) || tmp > tmp_max) |
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314 { |
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315 idx_j = ridx (i); |
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316 tmp_max = tmp; |
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317 } |
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318 |
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319 } |
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320 |
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321 idx_arg.elem (j) = xisnan (tmp_max) ? 0 : idx_j; |
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322 if (tmp_max != 0.) |
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323 nel++; |
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324 } |
| 5164 | 325 |
| 326 result = SparseMatrix (1, nc, nel); | |
| 327 | |
| 5275 | 328 octave_idx_type ii = 0; |
| 5164 | 329 result.xcidx (0) = 0; |
| 5275 | 330 for (octave_idx_type j = 0; j < nc; j++) |
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331 { |
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332 double tmp = elem (idx_arg(j), j); |
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333 if (tmp != 0.) |
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334 { |
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335 result.xdata (ii) = tmp; |
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336 result.xridx (ii++) = 0; |
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337 } |
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338 result.xcidx (j+1) = ii; |
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339 |
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340 } |
| 5164 | 341 } |
| 342 else | |
| 343 { | |
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344 idx_arg.resize (dim_vector (nr, 1), 0); |
| 5164 | 345 |
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346 for (octave_idx_type i = cidx (0); i < cidx (1); i++) |
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347 idx_arg.elem (ridx (i)) = -1; |
| 5164 | 348 |
| 5275 | 349 for (octave_idx_type j = 0; j < nc; j++) |
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350 for (octave_idx_type i = 0; i < nr; i++) |
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351 { |
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352 if (idx_arg.elem (i) != -1) |
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353 continue; |
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354 bool found = false; |
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355 for (octave_idx_type k = cidx (j); k < cidx (j+1); k++) |
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356 if (ridx (k) == i) |
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357 { |
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358 found = true; |
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359 break; |
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360 } |
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361 |
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362 if (!found) |
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363 idx_arg.elem (i) = j; |
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364 |
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365 } |
| 5164 | 366 |
| 5275 | 367 for (octave_idx_type j = 0; j < nc; j++) |
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368 { |
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369 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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370 { |
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371 octave_idx_type ir = ridx (i); |
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372 octave_idx_type ix = idx_arg.elem (ir); |
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373 double tmp = data (i); |
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374 |
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375 if (xisnan (tmp)) |
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376 continue; |
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377 else if (ix == -1 || tmp > elem (ir, ix)) |
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378 idx_arg.elem (ir) = j; |
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379 } |
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380 } |
| 5164 | 381 |
| 5275 | 382 octave_idx_type nel = 0; |
| 383 for (octave_idx_type j = 0; j < nr; j++) | |
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384 if (idx_arg.elem (j) == -1 || elem (j, idx_arg.elem (j)) != 0.) |
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385 nel++; |
| 5164 | 386 |
| 387 result = SparseMatrix (nr, 1, nel); | |
| 388 | |
| 5275 | 389 octave_idx_type ii = 0; |
| 5164 | 390 result.xcidx (0) = 0; |
| 391 result.xcidx (1) = nel; | |
| 5275 | 392 for (octave_idx_type j = 0; j < nr; j++) |
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393 { |
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394 if (idx_arg(j) == -1) |
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395 { |
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396 idx_arg(j) = 0; |
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397 result.xdata (ii) = octave_NaN; |
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398 result.xridx (ii++) = j; |
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399 } |
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400 else |
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401 { |
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402 double tmp = elem (j, idx_arg(j)); |
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403 if (tmp != 0.) |
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404 { |
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405 result.xdata (ii) = tmp; |
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406 result.xridx (ii++) = j; |
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407 } |
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408 } |
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409 } |
| 5164 | 410 } |
| 411 | |
| 412 return result; | |
| 413 } | |
| 414 | |
| 415 SparseMatrix | |
| 416 SparseMatrix::min (int dim) const | |
| 417 { | |
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418 Array<octave_idx_type> dummy_idx; |
| 5164 | 419 return min (dummy_idx, dim); |
| 420 } | |
| 421 | |
| 422 SparseMatrix | |
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423 SparseMatrix::min (Array<octave_idx_type>& idx_arg, int dim) const |
| 5164 | 424 { |
| 425 SparseMatrix result; | |
| 426 dim_vector dv = dims (); | |
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427 octave_idx_type nr = dv(0); |
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428 octave_idx_type nc = dv(1); |
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429 |
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430 if (nr == 0 || nc == 0 || dim >= dv.length ()) |
| 5164 | 431 return result; |
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432 |
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433 if (dim < 0) |
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434 dim = dv.first_non_singleton (); |
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435 |
| 5164 | 436 if (dim == 0) |
| 437 { | |
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438 idx_arg.clear (1, nc); |
| 5275 | 439 octave_idx_type nel = 0; |
| 440 for (octave_idx_type j = 0; j < nc; j++) | |
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441 { |
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442 double tmp_min = octave_NaN; |
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443 octave_idx_type idx_j = 0; |
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444 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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445 { |
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446 if (ridx (i) != idx_j) |
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447 break; |
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448 else |
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449 idx_j++; |
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450 } |
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451 |
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452 if (idx_j != nr) |
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453 tmp_min = 0.; |
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454 |
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455 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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456 { |
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457 double tmp = data (i); |
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458 |
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459 if (xisnan (tmp)) |
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460 continue; |
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461 else if (xisnan (tmp_min) || tmp < tmp_min) |
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462 { |
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463 idx_j = ridx (i); |
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464 tmp_min = tmp; |
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465 } |
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466 |
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467 } |
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468 |
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469 idx_arg.elem (j) = xisnan (tmp_min) ? 0 : idx_j; |
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470 if (tmp_min != 0.) |
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471 nel++; |
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472 } |
| 5164 | 473 |
| 474 result = SparseMatrix (1, nc, nel); | |
| 475 | |
| 5275 | 476 octave_idx_type ii = 0; |
| 5164 | 477 result.xcidx (0) = 0; |
| 5275 | 478 for (octave_idx_type j = 0; j < nc; j++) |
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479 { |
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480 double tmp = elem (idx_arg(j), j); |
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481 if (tmp != 0.) |
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482 { |
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483 result.xdata (ii) = tmp; |
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484 result.xridx (ii++) = 0; |
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485 } |
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486 result.xcidx (j+1) = ii; |
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487 |
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488 } |
| 5164 | 489 } |
| 490 else | |
| 491 { | |
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492 idx_arg.resize (dim_vector (nr, 1), 0); |
| 5164 | 493 |
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494 for (octave_idx_type i = cidx (0); i < cidx (1); i++) |
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495 idx_arg.elem (ridx (i)) = -1; |
| 5164 | 496 |
| 5275 | 497 for (octave_idx_type j = 0; j < nc; j++) |
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498 for (octave_idx_type i = 0; i < nr; i++) |
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499 { |
|
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500 if (idx_arg.elem (i) != -1) |
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501 continue; |
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502 bool found = false; |
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503 for (octave_idx_type k = cidx (j); k < cidx (j+1); k++) |
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504 if (ridx (k) == i) |
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505 { |
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506 found = true; |
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507 break; |
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508 } |
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509 |
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510 if (!found) |
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511 idx_arg.elem (i) = j; |
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512 |
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513 } |
| 5164 | 514 |
| 5275 | 515 for (octave_idx_type j = 0; j < nc; j++) |
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516 { |
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517 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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518 { |
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519 octave_idx_type ir = ridx (i); |
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520 octave_idx_type ix = idx_arg.elem (ir); |
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521 double tmp = data (i); |
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522 |
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523 if (xisnan (tmp)) |
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524 continue; |
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525 else if (ix == -1 || tmp < elem (ir, ix)) |
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526 idx_arg.elem (ir) = j; |
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527 } |
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528 } |
| 5164 | 529 |
| 5275 | 530 octave_idx_type nel = 0; |
| 531 for (octave_idx_type j = 0; j < nr; j++) | |
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532 if (idx_arg.elem (j) == -1 || elem (j, idx_arg.elem (j)) != 0.) |
|
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533 nel++; |
| 5164 | 534 |
| 535 result = SparseMatrix (nr, 1, nel); | |
| 536 | |
| 5275 | 537 octave_idx_type ii = 0; |
| 5164 | 538 result.xcidx (0) = 0; |
| 539 result.xcidx (1) = nel; | |
| 5275 | 540 for (octave_idx_type j = 0; j < nr; j++) |
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541 { |
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542 if (idx_arg(j) == -1) |
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543 { |
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544 idx_arg(j) = 0; |
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545 result.xdata (ii) = octave_NaN; |
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546 result.xridx (ii++) = j; |
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547 } |
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548 else |
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549 { |
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550 double tmp = elem (j, idx_arg(j)); |
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551 if (tmp != 0.) |
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552 { |
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553 result.xdata (ii) = tmp; |
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554 result.xridx (ii++) = j; |
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555 } |
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556 } |
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557 } |
| 5164 | 558 } |
| 559 | |
| 560 return result; | |
| 561 } | |
| 562 | |
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563 /* |
|
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564 |
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565 %!assert (max (max (speye (65536))), sparse (1)) |
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566 %!assert (min (min (speye (65536))), sparse (0)) |
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567 |
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568 */ |
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569 |
|
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570 RowVector |
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571 SparseMatrix::row (octave_idx_type i) const |
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572 { |
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573 octave_idx_type nc = columns (); |
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574 RowVector retval (nc, 0); |
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575 |
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576 for (octave_idx_type j = 0; j < nc; j++) |
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577 for (octave_idx_type k = cidx (j); k < cidx (j+1); k++) |
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578 { |
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579 if (ridx (k) == i) |
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580 { |
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581 retval(j) = data (k); |
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582 break; |
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583 } |
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584 } |
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585 |
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586 return retval; |
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587 } |
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588 |
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589 ColumnVector |
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590 SparseMatrix::column (octave_idx_type i) const |
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591 { |
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592 octave_idx_type nr = rows (); |
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593 ColumnVector retval (nr, 0); |
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594 |
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595 for (octave_idx_type k = cidx (i); k < cidx (i+1); k++) |
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596 retval(ridx (k)) = data (k); |
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597 |
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598 return retval; |
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599 } |
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600 |
| 5164 | 601 SparseMatrix |
| 5275 | 602 SparseMatrix::concat (const SparseMatrix& rb, const Array<octave_idx_type>& ra_idx) |
| 5164 | 603 { |
| 604 // Don't use numel to avoid all possiblity of an overflow | |
| 605 if (rb.rows () > 0 && rb.cols () > 0) | |
| 606 insert (rb, ra_idx(0), ra_idx(1)); | |
| 607 return *this; | |
| 608 } | |
| 609 | |
| 610 SparseComplexMatrix | |
| 5275 | 611 SparseMatrix::concat (const SparseComplexMatrix& rb, const Array<octave_idx_type>& ra_idx) |
| 5164 | 612 { |
| 613 SparseComplexMatrix retval (*this); | |
| 614 if (rb.rows () > 0 && rb.cols () > 0) | |
| 615 retval.insert (rb, ra_idx(0), ra_idx(1)); | |
| 616 return retval; | |
| 617 } | |
| 618 | |
| 619 SparseMatrix | |
| 620 real (const SparseComplexMatrix& a) | |
| 621 { | |
| 5275 | 622 octave_idx_type nr = a.rows (); |
| 623 octave_idx_type nc = a.cols (); | |
| 5681 | 624 octave_idx_type nz = a.nnz (); |
| 5164 | 625 SparseMatrix r (nr, nc, nz); |
| 626 | |
| 5275 | 627 for (octave_idx_type i = 0; i < nc +1; i++) |
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628 r.cidx (i) = a.cidx (i); |
| 5164 | 629 |
| 5275 | 630 for (octave_idx_type i = 0; i < nz; i++) |
| 5164 | 631 { |
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632 r.data (i) = std::real (a.data (i)); |
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633 r.ridx (i) = a.ridx (i); |
| 5164 | 634 } |
| 635 | |
| 636 return r; | |
| 637 } | |
| 638 | |
| 639 SparseMatrix | |
| 640 imag (const SparseComplexMatrix& a) | |
| 641 { | |
| 5275 | 642 octave_idx_type nr = a.rows (); |
| 643 octave_idx_type nc = a.cols (); | |
| 5681 | 644 octave_idx_type nz = a.nnz (); |
| 5164 | 645 SparseMatrix r (nr, nc, nz); |
| 646 | |
| 5275 | 647 for (octave_idx_type i = 0; i < nc +1; i++) |
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648 r.cidx (i) = a.cidx (i); |
| 5164 | 649 |
| 5275 | 650 for (octave_idx_type i = 0; i < nz; i++) |
| 5164 | 651 { |
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652 r.data (i) = std::imag (a.data (i)); |
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653 r.ridx (i) = a.ridx (i); |
| 5164 | 654 } |
| 655 | |
| 656 return r; | |
| 657 } | |
| 658 | |
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659 SparseMatrix |
| 5164 | 660 atan2 (const double& x, const SparseMatrix& y) |
| 661 { | |
| 5275 | 662 octave_idx_type nr = y.rows (); |
| 663 octave_idx_type nc = y.cols (); | |
| 5164 | 664 |
| 665 if (x == 0.) | |
| 666 return SparseMatrix (nr, nc); | |
| 667 else | |
| 668 { | |
| 669 // Its going to be basically full, so this is probably the | |
| 670 // best way to handle it. | |
| 671 Matrix tmp (nr, nc, atan2 (x, 0.)); | |
| 672 | |
| 5275 | 673 for (octave_idx_type j = 0; j < nc; j++) |
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674 for (octave_idx_type i = y.cidx (j); i < y.cidx (j+1); i++) |
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675 tmp.elem (y.ridx (i), j) = atan2 (x, y.data (i)); |
| 5164 | 676 |
| 677 return SparseMatrix (tmp); | |
| 678 } | |
| 679 } | |
| 680 | |
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681 SparseMatrix |
| 5164 | 682 atan2 (const SparseMatrix& x, const double& y) |
| 683 { | |
| 5275 | 684 octave_idx_type nr = x.rows (); |
| 685 octave_idx_type nc = x.cols (); | |
| 5681 | 686 octave_idx_type nz = x.nnz (); |
| 5164 | 687 |
| 688 SparseMatrix retval (nr, nc, nz); | |
| 689 | |
| 5275 | 690 octave_idx_type ii = 0; |
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691 retval.xcidx (0) = 0; |
| 5275 | 692 for (octave_idx_type i = 0; i < nc; i++) |
| 5164 | 693 { |
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694 for (octave_idx_type j = x.cidx (i); j < x.cidx (i+1); j++) |
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695 { |
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696 double tmp = atan2 (x.data (j), y); |
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697 if (tmp != 0.) |
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698 { |
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699 retval.xdata (ii) = tmp; |
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700 retval.xridx (ii++) = x.ridx (j); |
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701 } |
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702 } |
| 5164 | 703 retval.xcidx (i+1) = ii; |
| 704 } | |
| 705 | |
| 706 if (ii != nz) | |
| 707 { | |
| 708 SparseMatrix retval2 (nr, nc, ii); | |
| 5275 | 709 for (octave_idx_type i = 0; i < nc+1; i++) |
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710 retval2.xcidx (i) = retval.cidx (i); |
| 5275 | 711 for (octave_idx_type i = 0; i < ii; i++) |
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712 { |
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713 retval2.xdata (i) = retval.data (i); |
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714 retval2.xridx (i) = retval.ridx (i); |
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715 } |
| 5164 | 716 return retval2; |
| 717 } | |
| 718 else | |
| 719 return retval; | |
| 720 } | |
| 721 | |
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722 SparseMatrix |
| 5164 | 723 atan2 (const SparseMatrix& x, const SparseMatrix& y) |
| 724 { | |
| 725 SparseMatrix r; | |
| 726 | |
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727 if ((x.rows () == y.rows ()) && (x.cols () == y.cols ())) |
| 5164 | 728 { |
| 5275 | 729 octave_idx_type x_nr = x.rows (); |
| 730 octave_idx_type x_nc = x.cols (); | |
| 731 | |
| 732 octave_idx_type y_nr = y.rows (); | |
| 733 octave_idx_type y_nc = y.cols (); | |
| 5164 | 734 |
| 735 if (x_nr != y_nr || x_nc != y_nc) | |
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736 gripe_nonconformant ("atan2", x_nr, x_nc, y_nr, y_nc); |
| 5164 | 737 else |
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738 { |
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739 r = SparseMatrix (x_nr, x_nc, (x.nnz () + y.nnz ())); |
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740 |
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741 octave_idx_type jx = 0; |
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742 r.cidx (0) = 0; |
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743 for (octave_idx_type i = 0 ; i < x_nc ; i++) |
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744 { |
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745 octave_idx_type ja = x.cidx (i); |
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746 octave_idx_type ja_max = x.cidx (i+1); |
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747 bool ja_lt_max= ja < ja_max; |
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748 |
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749 octave_idx_type jb = y.cidx (i); |
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750 octave_idx_type jb_max = y.cidx (i+1); |
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751 bool jb_lt_max = jb < jb_max; |
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752 |
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753 while (ja_lt_max || jb_lt_max ) |
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754 { |
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755 octave_quit (); |
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756 if ((! jb_lt_max) || |
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757 (ja_lt_max && (x.ridx (ja) < y.ridx (jb)))) |
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758 { |
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759 r.ridx (jx) = x.ridx (ja); |
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760 r.data (jx) = atan2 (x.data (ja), 0.); |
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761 jx++; |
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762 ja++; |
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763 ja_lt_max= ja < ja_max; |
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764 } |
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765 else if (( !ja_lt_max ) || |
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766 (jb_lt_max && (y.ridx (jb) < x.ridx (ja)) ) ) |
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767 { |
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768 jb++; |
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769 jb_lt_max= jb < jb_max; |
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770 } |
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771 else |
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772 { |
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773 double tmp = atan2 (x.data (ja), y.data (jb)); |
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774 if (tmp != 0.) |
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775 { |
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776 r.data (jx) = tmp; |
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777 r.ridx (jx) = x.ridx (ja); |
| 5164 | 778 jx++; |
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779 } |
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780 ja++; |
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781 ja_lt_max= ja < ja_max; |
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782 jb++; |
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783 jb_lt_max= jb < jb_max; |
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784 } |
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785 } |
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786 r.cidx (i+1) = jx; |
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787 } |
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788 |
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789 r.maybe_compress (); |
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790 } |
| 5164 | 791 } |
| 792 else | |
| 793 (*current_liboctave_error_handler) ("matrix size mismatch"); | |
| 794 | |
| 795 return r; | |
| 796 } | |
| 797 | |
| 798 SparseMatrix | |
| 799 SparseMatrix::inverse (void) const | |
| 800 { | |
| 5275 | 801 octave_idx_type info; |
| 5164 | 802 double rcond; |
| 5785 | 803 MatrixType mattype (*this); |
| 5506 | 804 return inverse (mattype, info, rcond, 0, 0); |
| 805 } | |
| 806 | |
| 807 SparseMatrix | |
| 5785 | 808 SparseMatrix::inverse (MatrixType& mattype) const |
| 5506 | 809 { |
| 810 octave_idx_type info; | |
| 811 double rcond; | |
| 812 return inverse (mattype, info, rcond, 0, 0); | |
| 5164 | 813 } |
| 814 | |
| 815 SparseMatrix | |
| 5785 | 816 SparseMatrix::inverse (MatrixType& mattype, octave_idx_type& info) const |
| 5164 | 817 { |
| 818 double rcond; | |
| 5506 | 819 return inverse (mattype, info, rcond, 0, 0); |
| 820 } | |
| 821 | |
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822 SparseMatrix |
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823 SparseMatrix::dinverse (MatrixType &mattyp, octave_idx_type& info, |
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824 double& rcond, const bool, |
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825 const bool calccond) const |
| 5506 | 826 { |
| 827 SparseMatrix retval; | |
| 828 | |
| 829 octave_idx_type nr = rows (); | |
| 830 octave_idx_type nc = cols (); | |
| 831 info = 0; | |
| 832 | |
| 833 if (nr == 0 || nc == 0 || nr != nc) | |
| 834 (*current_liboctave_error_handler) ("inverse requires square matrix"); | |
| 835 else | |
| 836 { | |
| 837 // Print spparms("spumoni") info if requested | |
| 838 int typ = mattyp.type (); | |
| 839 mattyp.info (); | |
| 840 | |
| 5785 | 841 if (typ == MatrixType::Diagonal || |
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842 typ == MatrixType::Permuted_Diagonal) |
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843 { |
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844 if (typ == MatrixType::Permuted_Diagonal) |
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845 retval = transpose (); |
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846 else |
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847 retval = *this; |
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848 |
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849 // Force make_unique to be called |
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850 double *v = retval.data (); |
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851 |
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852 if (calccond) |
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853 { |
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854 double dmax = 0., dmin = octave_Inf; |
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855 for (octave_idx_type i = 0; i < nr; i++) |
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856 { |
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857 double tmp = fabs (v[i]); |
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858 if (tmp > dmax) |
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859 dmax = tmp; |
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860 if (tmp < dmin) |
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861 dmin = tmp; |
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862 } |
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863 rcond = dmin / dmax; |
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864 } |
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865 |
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866 for (octave_idx_type i = 0; i < nr; i++) |
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867 v[i] = 1.0 / v[i]; |
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868 } |
| 5506 | 869 else |
|
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870 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5506 | 871 } |
| 872 | |
| 873 return retval; | |
| 874 } | |
| 875 | |
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876 SparseMatrix |
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877 SparseMatrix::tinverse (MatrixType &mattyp, octave_idx_type& info, |
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878 double& rcond, const bool, |
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879 const bool calccond) const |
| 5506 | 880 { |
| 881 SparseMatrix retval; | |
| 882 | |
| 883 octave_idx_type nr = rows (); | |
| 884 octave_idx_type nc = cols (); | |
| 885 info = 0; | |
| 886 | |
| 887 if (nr == 0 || nc == 0 || nr != nc) | |
| 888 (*current_liboctave_error_handler) ("inverse requires square matrix"); | |
| 889 else | |
| 890 { | |
| 891 // Print spparms("spumoni") info if requested | |
| 892 int typ = mattyp.type (); | |
| 893 mattyp.info (); | |
| 894 | |
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895 if (typ == MatrixType::Upper || typ == MatrixType::Permuted_Upper || |
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896 typ == MatrixType::Lower || typ == MatrixType::Permuted_Lower) |
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897 { |
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898 double anorm = 0.; |
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899 double ainvnorm = 0.; |
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900 |
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901 if (calccond) |
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902 { |
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903 // Calculate the 1-norm of matrix for rcond calculation |
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904 for (octave_idx_type j = 0; j < nr; j++) |
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905 { |
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906 double atmp = 0.; |
|
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907 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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908 atmp += fabs (data (i)); |
|
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909 if (atmp > anorm) |
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910 anorm = atmp; |
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911 } |
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912 } |
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913 |
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914 if (typ == MatrixType::Upper || typ == MatrixType::Lower) |
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915 { |
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916 octave_idx_type nz = nnz (); |
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917 octave_idx_type cx = 0; |
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918 octave_idx_type nz2 = nz; |
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919 retval = SparseMatrix (nr, nc, nz2); |
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920 |
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921 for (octave_idx_type i = 0; i < nr; i++) |
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922 { |
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|
923 octave_quit (); |
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924 // place the 1 in the identity position |
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925 octave_idx_type cx_colstart = cx; |
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926 |
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927 if (cx == nz2) |
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928 { |
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929 nz2 *= 2; |
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930 retval.change_capacity (nz2); |
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931 } |
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932 |
|
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933 retval.xcidx (i) = cx; |
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934 retval.xridx (cx) = i; |
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935 retval.xdata (cx) = 1.0; |
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936 cx++; |
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937 |
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938 // iterate accross columns of input matrix |
|
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939 for (octave_idx_type j = i+1; j < nr; j++) |
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940 { |
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941 double v = 0.; |
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changeset
|
942 // iterate to calculate sum |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
943 octave_idx_type colXp = retval.xcidx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
944 octave_idx_type colUp = cidx (j); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
945 octave_idx_type rpX, rpU; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
946 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
947 if (cidx (j) == cidx (j+1)) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
948 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
949 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
950 ("division by zero"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
951 goto inverse_singular; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
952 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
953 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
954 do |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
955 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
956 octave_quit (); |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
957 rpX = retval.xridx (colXp); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
958 rpU = ridx (colUp); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
959 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
960 if (rpX < rpU) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
961 colXp++; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
962 else if (rpX > rpU) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
963 colUp++; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
964 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
965 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
966 v -= retval.xdata (colXp) * data (colUp); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
967 colXp++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
968 colUp++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
969 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
970 } while ((rpX<j) && (rpU<j) && |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
971 (colXp<cx) && (colUp<nz)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
972 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
973 // get A(m,m) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
974 if (typ == MatrixType::Upper) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
975 colUp = cidx (j+1) - 1; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
976 else |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
977 colUp = cidx (j); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
978 double pivot = data (colUp); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
979 if (pivot == 0. || ridx (colUp) != j) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
980 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
981 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
982 ("division by zero"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
983 goto inverse_singular; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
984 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
985 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
986 if (v != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
987 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
988 if (cx == nz2) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
989 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
990 nz2 *= 2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
991 retval.change_capacity (nz2); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
992 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
993 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
994 retval.xridx (cx) = j; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
995 retval.xdata (cx) = v / pivot; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
996 cx++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
997 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
998 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
999 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1000 // get A(m,m) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1001 octave_idx_type colUp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1002 if (typ == MatrixType::Upper) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1003 colUp = cidx (i+1) - 1; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1004 else |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1005 colUp = cidx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1006 double pivot = data (colUp); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1007 if (pivot == 0. || ridx (colUp) != i) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1008 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1009 (*current_liboctave_error_handler) ("division by zero"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1010 goto inverse_singular; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1011 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1012 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1013 if (pivot != 1.0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1014 for (octave_idx_type j = cx_colstart; j < cx; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1015 retval.xdata (j) /= pivot; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1016 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1017 retval.xcidx (nr) = cx; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1018 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1019 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1020 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1021 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1022 octave_idx_type nz = nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1023 octave_idx_type cx = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1024 octave_idx_type nz2 = nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1025 retval = SparseMatrix (nr, nc, nz2); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1026 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1027 OCTAVE_LOCAL_BUFFER (double, work, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1028 OCTAVE_LOCAL_BUFFER (octave_idx_type, rperm, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1029 |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
1030 octave_idx_type *perm = mattyp.triangular_perm (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1031 if (typ == MatrixType::Permuted_Upper) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1032 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1033 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1034 rperm[perm[i]] = i; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1035 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1036 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1037 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1038 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1039 rperm[i] = perm[i]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1040 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1041 perm[rperm[i]] = i; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1042 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1043 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1044 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1045 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1046 octave_quit (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1047 octave_idx_type iidx = rperm[i]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1048 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1049 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1050 work[j] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1051 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1052 // place the 1 in the identity position |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1053 work[iidx] = 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1054 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1055 // iterate accross columns of input matrix |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
1056 for (octave_idx_type j = iidx+1; j < nr; j++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1057 { |
|
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1058 double v = 0.; |
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1059 octave_idx_type jidx = perm[j]; |
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1060 // iterate to calculate sum |
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1061 for (octave_idx_type k = cidx (jidx); |
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1062 k < cidx (jidx+1); k++) |
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1063 { |
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1064 octave_quit (); |
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1065 v -= work[ridx (k)] * data (k); |
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1066 } |
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1067 |
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1068 // get A(m,m) |
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1069 double pivot; |
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1070 if (typ == MatrixType::Permuted_Upper) |
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1071 pivot = data (cidx (jidx+1) - 1); |
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1072 else |
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1073 pivot = data (cidx (jidx)); |
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1074 if (pivot == 0.) |
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1075 { |
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1076 (*current_liboctave_error_handler) |
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1077 ("division by zero"); |
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1078 goto inverse_singular; |
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1079 } |
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1080 |
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1081 work[j] = v / pivot; |
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1082 } |
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1083 |
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1084 // get A(m,m) |
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1085 octave_idx_type colUp; |
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1086 if (typ == MatrixType::Permuted_Upper) |
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1087 colUp = cidx (perm[iidx]+1) - 1; |
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1088 else |
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1089 colUp = cidx (perm[iidx]); |
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1090 |
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1091 double pivot = data (colUp); |
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1092 if (pivot == 0.) |
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1093 { |
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1094 (*current_liboctave_error_handler) |
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1095 ("division by zero"); |
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1096 goto inverse_singular; |
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1097 } |
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1098 |
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1099 octave_idx_type new_cx = cx; |
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1100 for (octave_idx_type j = iidx; j < nr; j++) |
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1101 if (work[j] != 0.0) |
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1102 { |
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1103 new_cx++; |
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1104 if (pivot != 1.0) |
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1105 work[j] /= pivot; |
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1106 } |
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1107 |
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1108 if (cx < new_cx) |
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1109 { |
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1110 nz2 = (2*nz2 < new_cx ? new_cx : 2*nz2); |
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1111 retval.change_capacity (nz2); |
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1112 } |
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1113 |
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1114 retval.xcidx (i) = cx; |
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1115 for (octave_idx_type j = iidx; j < nr; j++) |
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1116 if (work[j] != 0.) |
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1117 { |
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1118 retval.xridx (cx) = j; |
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1119 retval.xdata (cx++) = work[j]; |
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1120 } |
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1121 } |
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1122 |
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1123 retval.xcidx (nr) = cx; |
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1124 retval.maybe_compress (); |
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1125 } |
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1126 |
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1127 if (calccond) |
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1128 { |
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1129 // Calculate the 1-norm of inverse matrix for rcond calculation |
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1130 for (octave_idx_type j = 0; j < nr; j++) |
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1131 { |
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1132 double atmp = 0.; |
|
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1133 for (octave_idx_type i = retval.cidx (j); |
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1134 i < retval.cidx (j+1); i++) |
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1135 atmp += fabs (retval.data (i)); |
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1136 if (atmp > ainvnorm) |
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1137 ainvnorm = atmp; |
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1138 } |
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1139 |
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1140 rcond = 1. / ainvnorm / anorm; |
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1141 } |
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1142 } |
| 5506 | 1143 else |
|
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1144 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5506 | 1145 } |
| 1146 | |
| 1147 return retval; | |
| 5876 | 1148 |
| 1149 inverse_singular: | |
|
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1150 return SparseMatrix (); |
| 5164 | 1151 } |
| 1152 | |
| 1153 SparseMatrix | |
|
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1154 SparseMatrix::inverse (MatrixType &mattype, octave_idx_type& info, |
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1155 double& rcond, int, int calc_cond) const |
| 5506 | 1156 { |
| 1157 int typ = mattype.type (false); | |
| 1158 SparseMatrix ret; | |
| 1159 | |
| 5785 | 1160 if (typ == MatrixType::Unknown) |
| 5506 | 1161 typ = mattype.type (*this); |
| 1162 | |
| 5785 | 1163 if (typ == MatrixType::Diagonal || typ == MatrixType::Permuted_Diagonal) |
| 5506 | 1164 ret = dinverse (mattype, info, rcond, true, calc_cond); |
| 5785 | 1165 else if (typ == MatrixType::Upper || typ == MatrixType::Permuted_Upper) |
|
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1166 ret = tinverse (mattype, info, rcond, true, calc_cond).transpose (); |
| 5785 | 1167 else if (typ == MatrixType::Lower || typ == MatrixType::Permuted_Lower) |
| 6185 | 1168 { |
|
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1169 MatrixType newtype = mattype.transpose (); |
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1170 ret = transpose ().tinverse (newtype, info, rcond, true, calc_cond); |
| 6185 | 1171 } |
| 6840 | 1172 else |
| 5506 | 1173 { |
|
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1174 if (mattype.is_hermitian ()) |
|
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1175 { |
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1176 MatrixType tmp_typ (MatrixType::Upper); |
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1177 SparseCHOL fact (*this, info, false); |
|
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1178 rcond = fact.rcond (); |
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1179 if (info == 0) |
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1180 { |
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1181 double rcond2; |
|
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1182 SparseMatrix Q = fact.Q (); |
|
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1183 SparseMatrix InvL = fact.L ().transpose ().tinverse (tmp_typ, |
|
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1184 info, rcond2, true, false); |
|
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1185 ret = Q * InvL.transpose () * InvL * Q.transpose (); |
|
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1186 } |
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1187 else |
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1188 { |
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1189 // Matrix is either singular or not positive definite |
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1190 mattype.mark_as_unsymmetric (); |
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1191 typ = MatrixType::Full; |
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1192 } |
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1193 } |
| 5506 | 1194 |
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1195 if (!mattype.is_hermitian ()) |
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1196 { |
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1197 octave_idx_type n = rows (); |
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1198 ColumnVector Qinit(n); |
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1199 for (octave_idx_type i = 0; i < n; i++) |
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1200 Qinit(i) = i; |
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1201 |
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1202 MatrixType tmp_typ (MatrixType::Upper); |
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1203 SparseLU fact (*this, Qinit, Matrix (), false, false); |
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1204 rcond = fact.rcond (); |
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1205 double rcond2; |
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1206 SparseMatrix InvL = fact.L ().transpose ().tinverse (tmp_typ, |
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1207 info, rcond2, true, false); |
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1208 SparseMatrix InvU = fact.U ().tinverse (tmp_typ, info, rcond2, |
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1209 true, false).transpose (); |
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1210 ret = fact.Pc ().transpose () * InvU * InvL * fact.Pr (); |
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1211 } |
| 5506 | 1212 } |
| 1213 | |
| 1214 return ret; | |
| 5164 | 1215 } |
| 1216 | |
| 1217 DET | |
| 1218 SparseMatrix::determinant (void) const | |
| 1219 { | |
| 5275 | 1220 octave_idx_type info; |
| 5164 | 1221 double rcond; |
| 1222 return determinant (info, rcond, 0); | |
| 1223 } | |
| 1224 | |
| 1225 DET | |
| 5275 | 1226 SparseMatrix::determinant (octave_idx_type& info) const |
| 5164 | 1227 { |
| 1228 double rcond; | |
| 1229 return determinant (info, rcond, 0); | |
| 1230 } | |
| 1231 | |
| 1232 DET | |
| 5275 | 1233 SparseMatrix::determinant (octave_idx_type& err, double& rcond, int) const |
| 5164 | 1234 { |
| 1235 DET retval; | |
| 1236 | |
| 5203 | 1237 #ifdef HAVE_UMFPACK |
| 5275 | 1238 octave_idx_type nr = rows (); |
| 1239 octave_idx_type nc = cols (); | |
| 5164 | 1240 |
| 1241 if (nr == 0 || nc == 0 || nr != nc) | |
| 1242 { | |
| 8335 | 1243 retval = DET (1.0); |
| 5164 | 1244 } |
| 1245 else | |
| 1246 { | |
| 1247 err = 0; | |
| 1248 | |
| 1249 // Setup the control parameters | |
| 1250 Matrix Control (UMFPACK_CONTROL, 1); | |
| 1251 double *control = Control.fortran_vec (); | |
| 5322 | 1252 UMFPACK_DNAME (defaults) (control); |
| 5164 | 1253 |
| 5893 | 1254 double tmp = octave_sparse_params::get_key ("spumoni"); |
| 5164 | 1255 if (!xisnan (tmp)) |
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1256 Control (UMFPACK_PRL) = tmp; |
| 5164 | 1257 |
| 5893 | 1258 tmp = octave_sparse_params::get_key ("piv_tol"); |
| 5164 | 1259 if (!xisnan (tmp)) |
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1260 { |
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1261 Control (UMFPACK_SYM_PIVOT_TOLERANCE) = tmp; |
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1262 Control (UMFPACK_PIVOT_TOLERANCE) = tmp; |
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1263 } |
| 5164 | 1264 |
| 1265 // Set whether we are allowed to modify Q or not | |
| 5893 | 1266 tmp = octave_sparse_params::get_key ("autoamd"); |
| 5164 | 1267 if (!xisnan (tmp)) |
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1268 Control (UMFPACK_FIXQ) = tmp; |
| 5164 | 1269 |
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1270 // Turn-off UMFPACK scaling for LU |
| 5164 | 1271 Control (UMFPACK_SCALE) = UMFPACK_SCALE_NONE; |
| 1272 | |
| 5322 | 1273 UMFPACK_DNAME (report_control) (control); |
| 5164 | 1274 |
| 5275 | 1275 const octave_idx_type *Ap = cidx (); |
| 1276 const octave_idx_type *Ai = ridx (); | |
| 5164 | 1277 const double *Ax = data (); |
| 1278 | |
| 5322 | 1279 UMFPACK_DNAME (report_matrix) (nr, nc, Ap, Ai, Ax, 1, control); |
| 5164 | 1280 |
| 1281 void *Symbolic; | |
| 1282 Matrix Info (1, UMFPACK_INFO); | |
| 1283 double *info = Info.fortran_vec (); | |
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1284 int status = UMFPACK_DNAME (qsymbolic) (nr, nc, Ap, Ai, |
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1285 Ax, 0, &Symbolic, control, info); |
| 5164 | 1286 |
| 1287 if (status < 0) | |
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1288 { |
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1289 (*current_liboctave_error_handler) |
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1290 ("SparseMatrix::determinant symbolic factorization failed"); |
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1291 |
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1292 UMFPACK_DNAME (report_status) (control, status); |
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1293 UMFPACK_DNAME (report_info) (control, info); |
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1294 |
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1295 UMFPACK_DNAME (free_symbolic) (&Symbolic) ; |
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1296 } |
| 5164 | 1297 else |
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1298 { |
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1299 UMFPACK_DNAME (report_symbolic) (Symbolic, control); |
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1300 |
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1301 void *Numeric; |
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1302 status = UMFPACK_DNAME (numeric) (Ap, Ai, Ax, Symbolic, |
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1303 &Numeric, control, info) ; |
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1304 UMFPACK_DNAME (free_symbolic) (&Symbolic) ; |
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1305 |
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1306 rcond = Info (UMFPACK_RCOND); |
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1307 |
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1308 if (status < 0) |
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1309 { |
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1310 (*current_liboctave_error_handler) |
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1311 ("SparseMatrix::determinant numeric factorization failed"); |
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1312 |
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1313 UMFPACK_DNAME (report_status) (control, status); |
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1314 UMFPACK_DNAME (report_info) (control, info); |
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1315 |
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1316 UMFPACK_DNAME (free_numeric) (&Numeric); |
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1317 } |
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1318 else |
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1319 { |
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1320 UMFPACK_DNAME (report_numeric) (Numeric, control); |
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1321 |
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1322 double c10, e10; |
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1323 |
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1324 status = UMFPACK_DNAME (get_determinant) (&c10, &e10, Numeric, info); |
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1325 |
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1326 if (status < 0) |
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1327 { |
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1328 (*current_liboctave_error_handler) |
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1329 ("SparseMatrix::determinant error calculating determinant"); |
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1330 |
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1331 UMFPACK_DNAME (report_status) (control, status); |
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1332 UMFPACK_DNAME (report_info) (control, info); |
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1333 } |
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1334 else |
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1335 retval = DET (c10, e10, 10); |
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1336 |
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1337 UMFPACK_DNAME (free_numeric) (&Numeric); |
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1338 } |
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1339 } |
| 5164 | 1340 } |
| 5203 | 1341 #else |
| 1342 (*current_liboctave_error_handler) ("UMFPACK not installed"); | |
| 1343 #endif | |
| 5164 | 1344 |
| 1345 return retval; | |
| 1346 } | |
| 1347 | |
| 1348 Matrix | |
| 5785 | 1349 SparseMatrix::dsolve (MatrixType &mattype, const Matrix& b, octave_idx_type& err, |
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1350 double& rcond, solve_singularity_handler, |
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1351 bool calc_cond) const |
| 5164 | 1352 { |
| 1353 Matrix retval; | |
| 1354 | |
| 5275 | 1355 octave_idx_type nr = rows (); |
| 1356 octave_idx_type nc = cols (); | |
| 5630 | 1357 octave_idx_type nm = (nc < nr ? nc : nr); |
| 5164 | 1358 err = 0; |
| 1359 | |
| 6924 | 1360 if (nr != b.rows ()) |
| 5164 | 1361 (*current_liboctave_error_handler) |
| 1362 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 1363 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 1364 retval = Matrix (nc, b.cols (), 0.0); | |
| 5164 | 1365 else |
| 1366 { | |
| 1367 // Print spparms("spumoni") info if requested | |
| 1368 int typ = mattype.type (); | |
| 1369 mattype.info (); | |
| 1370 | |
| 5785 | 1371 if (typ == MatrixType::Diagonal || |
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1372 typ == MatrixType::Permuted_Diagonal) |
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1373 { |
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1374 retval.resize (nc, b.cols (), 0.); |
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1375 if (typ == MatrixType::Diagonal) |
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1376 for (octave_idx_type j = 0; j < b.cols (); j++) |
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1377 for (octave_idx_type i = 0; i < nm; i++) |
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1378 retval(i,j) = b(i,j) / data (i); |
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1379 else |
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1380 for (octave_idx_type j = 0; j < b.cols (); j++) |
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1381 for (octave_idx_type k = 0; k < nc; k++) |
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1382 for (octave_idx_type i = cidx (k); i < cidx (k+1); i++) |
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1383 retval(k,j) = b(ridx (i),j) / data (i); |
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1384 |
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1385 if (calc_cond) |
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1386 { |
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1387 double dmax = 0., dmin = octave_Inf; |
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1388 for (octave_idx_type i = 0; i < nm; i++) |
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1389 { |
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1390 double tmp = fabs (data (i)); |
|
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1391 if (tmp > dmax) |
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1392 dmax = tmp; |
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1393 if (tmp < dmin) |
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1394 dmin = tmp; |
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1395 } |
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1396 rcond = dmin / dmax; |
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1397 } |
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1398 else |
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1399 rcond = 1.; |
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1400 } |
| 5164 | 1401 else |
|
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|
1402 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 1403 } |
| 1404 | |
| 1405 return retval; | |
| 1406 } | |
| 1407 | |
| 1408 SparseMatrix | |
|
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1409 SparseMatrix::dsolve (MatrixType &mattype, const SparseMatrix& b, |
|
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1410 octave_idx_type& err, double& rcond, |
|
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|
1411 solve_singularity_handler, bool calc_cond) const |
| 5164 | 1412 { |
| 1413 SparseMatrix retval; | |
| 1414 | |
| 5275 | 1415 octave_idx_type nr = rows (); |
| 1416 octave_idx_type nc = cols (); | |
| 5630 | 1417 octave_idx_type nm = (nc < nr ? nc : nr); |
| 5164 | 1418 err = 0; |
| 1419 | |
| 6924 | 1420 if (nr != b.rows ()) |
| 5164 | 1421 (*current_liboctave_error_handler) |
| 1422 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 1423 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 1424 retval = SparseMatrix (nc, b.cols ()); | |
| 5164 | 1425 else |
| 1426 { | |
| 1427 // Print spparms("spumoni") info if requested | |
| 1428 int typ = mattype.type (); | |
| 1429 mattype.info (); | |
| 1430 | |
| 5785 | 1431 if (typ == MatrixType::Diagonal || |
|
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1432 typ == MatrixType::Permuted_Diagonal) |
|
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1433 { |
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|
1434 octave_idx_type b_nc = b.cols (); |
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1435 octave_idx_type b_nz = b.nnz (); |
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1436 retval = SparseMatrix (nc, b_nc, b_nz); |
|
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1437 |
|
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1438 retval.xcidx (0) = 0; |
|
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1439 octave_idx_type ii = 0; |
|
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1440 if (typ == MatrixType::Diagonal) |
|
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|
1441 for (octave_idx_type j = 0; j < b_nc; j++) |
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1442 { |
|
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1443 for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++) |
|
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1444 { |
|
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1445 if (b.ridx (i) >= nm) |
|
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|
1446 break; |
|
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|
1447 retval.xridx (ii) = b.ridx (i); |
|
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1448 retval.xdata (ii++) = b.data (i) / data (b.ridx (i)); |
|
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1449 } |
|
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1450 retval.xcidx (j+1) = ii; |
|
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|
1451 } |
|
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|
1452 else |
|
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|
1453 for (octave_idx_type j = 0; j < b_nc; j++) |
|
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|
1454 { |
|
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|
1455 for (octave_idx_type l = 0; l < nc; l++) |
|
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1456 for (octave_idx_type i = cidx (l); i < cidx (l+1); i++) |
|
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1457 { |
|
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|
1458 bool found = false; |
|
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|
1459 octave_idx_type k; |
|
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|
1460 for (k = b.cidx (j); k < b.cidx (j+1); k++) |
|
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1461 if (ridx (i) == b.ridx (k)) |
|
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|
1462 { |
|
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|
1463 found = true; |
|
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|
1464 break; |
|
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|
1465 } |
|
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|
1466 if (found) |
|
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|
1467 { |
|
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|
1468 retval.xridx (ii) = l; |
|
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1469 retval.xdata (ii++) = b.data (k) / data (i); |
|
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|
1470 } |
|
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|
1471 } |
|
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1472 retval.xcidx (j+1) = ii; |
|
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|
1473 } |
|
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|
1474 |
|
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|
1475 if (calc_cond) |
|
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|
1476 { |
|
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|
1477 double dmax = 0., dmin = octave_Inf; |
|
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|
1478 for (octave_idx_type i = 0; i < nm; i++) |
|
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|
1479 { |
|
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|
1480 double tmp = fabs (data (i)); |
|
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|
1481 if (tmp > dmax) |
|
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|
1482 dmax = tmp; |
|
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|
1483 if (tmp < dmin) |
|
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|
1484 dmin = tmp; |
|
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|
1485 } |
|
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|
1486 rcond = dmin / dmax; |
|
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|
1487 } |
|
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|
1488 else |
|
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|
1489 rcond = 1.; |
|
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|
1490 } |
| 5164 | 1491 else |
|
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|
1492 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 1493 } |
| 1494 | |
| 1495 return retval; | |
| 1496 } | |
| 1497 | |
| 1498 ComplexMatrix | |
| 5785 | 1499 SparseMatrix::dsolve (MatrixType &mattype, const ComplexMatrix& b, |
|
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|
1500 octave_idx_type& err, double& rcond, |
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|
1501 solve_singularity_handler, bool calc_cond) const |
| 5164 | 1502 { |
| 1503 ComplexMatrix retval; | |
| 1504 | |
| 5275 | 1505 octave_idx_type nr = rows (); |
| 1506 octave_idx_type nc = cols (); | |
| 5630 | 1507 octave_idx_type nm = (nc < nr ? nc : nr); |
| 5164 | 1508 err = 0; |
| 1509 | |
| 6924 | 1510 if (nr != b.rows ()) |
| 5164 | 1511 (*current_liboctave_error_handler) |
| 1512 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 1513 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 1514 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0)); | |
| 5164 | 1515 else |
| 1516 { | |
| 1517 // Print spparms("spumoni") info if requested | |
| 1518 int typ = mattype.type (); | |
| 1519 mattype.info (); | |
| 1520 | |
| 5785 | 1521 if (typ == MatrixType::Diagonal || |
|
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|
1522 typ == MatrixType::Permuted_Diagonal) |
|
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|
1523 { |
|
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|
1524 retval.resize (nc, b.cols (), 0); |
|
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|
1525 if (typ == MatrixType::Diagonal) |
|
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|
1526 for (octave_idx_type j = 0; j < b.cols (); j++) |
|
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|
1527 for (octave_idx_type i = 0; i < nm; i++) |
|
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1528 retval(i,j) = b(i,j) / data (i); |
|
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|
1529 else |
|
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|
1530 for (octave_idx_type j = 0; j < b.cols (); j++) |
|
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|
1531 for (octave_idx_type k = 0; k < nc; k++) |
|
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1532 for (octave_idx_type i = cidx (k); i < cidx (k+1); i++) |
|
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|
1533 retval(k,j) = b(ridx (i),j) / data (i); |
|
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1534 |
|
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|
1535 if (calc_cond) |
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|
1536 { |
|
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1537 double dmax = 0., dmin = octave_Inf; |
|
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1538 for (octave_idx_type i = 0; i < nm; i++) |
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1539 { |
|
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|
1540 double tmp = fabs (data (i)); |
|
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1541 if (tmp > dmax) |
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1542 dmax = tmp; |
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1543 if (tmp < dmin) |
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1544 dmin = tmp; |
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|
1545 } |
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|
1546 rcond = dmin / dmax; |
|
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|
1547 } |
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|
1548 else |
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|
1549 rcond = 1.; |
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1550 } |
| 5164 | 1551 else |
|
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|
1552 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 1553 } |
| 1554 | |
| 1555 return retval; | |
| 1556 } | |
| 1557 | |
| 1558 SparseComplexMatrix | |
| 5785 | 1559 SparseMatrix::dsolve (MatrixType &mattype, const SparseComplexMatrix& b, |
|
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1560 octave_idx_type& err, double& rcond, |
|
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|
1561 solve_singularity_handler, bool calc_cond) const |
| 5164 | 1562 { |
| 1563 SparseComplexMatrix retval; | |
| 1564 | |
| 5275 | 1565 octave_idx_type nr = rows (); |
| 1566 octave_idx_type nc = cols (); | |
| 5630 | 1567 octave_idx_type nm = (nc < nr ? nc : nr); |
| 5164 | 1568 err = 0; |
| 1569 | |
| 6924 | 1570 if (nr != b.rows ()) |
| 5164 | 1571 (*current_liboctave_error_handler) |
| 1572 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 1573 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 1574 retval = SparseComplexMatrix (nc, b.cols ()); | |
| 5164 | 1575 else |
| 1576 { | |
| 1577 // Print spparms("spumoni") info if requested | |
| 1578 int typ = mattype.type (); | |
| 1579 mattype.info (); | |
| 1580 | |
| 5785 | 1581 if (typ == MatrixType::Diagonal || |
|
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|
1582 typ == MatrixType::Permuted_Diagonal) |
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|
1583 { |
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|
1584 octave_idx_type b_nc = b.cols (); |
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1585 octave_idx_type b_nz = b.nnz (); |
|
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|
1586 retval = SparseComplexMatrix (nc, b_nc, b_nz); |
|
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|
1587 |
|
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|
1588 retval.xcidx (0) = 0; |
|
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|
1589 octave_idx_type ii = 0; |
|
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|
1590 if (typ == MatrixType::Diagonal) |
|
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|
1591 for (octave_idx_type j = 0; j < b.cols (); j++) |
|
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|
1592 { |
|
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|
1593 for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++) |
|
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|
1594 { |
|
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|
1595 if (b.ridx (i) >= nm) |
|
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|
1596 break; |
|
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|
1597 retval.xridx (ii) = b.ridx (i); |
|
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1598 retval.xdata (ii++) = b.data (i) / data (b.ridx (i)); |
|
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1599 } |
|
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1600 retval.xcidx (j+1) = ii; |
|
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|
1601 } |
|
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|
1602 else |
|
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|
1603 for (octave_idx_type j = 0; j < b.cols (); j++) |
|
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|
1604 { |
|
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|
1605 for (octave_idx_type l = 0; l < nc; l++) |
|
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1606 for (octave_idx_type i = cidx (l); i < cidx (l+1); i++) |
|
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|
1607 { |
|
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|
1608 bool found = false; |
|
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|
1609 octave_idx_type k; |
|
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|
1610 for (k = b.cidx (j); k < b.cidx (j+1); k++) |
|
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|
1611 if (ridx (i) == b.ridx (k)) |
|
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|
1612 { |
|
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|
1613 found = true; |
|
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|
1614 break; |
|
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|
1615 } |
|
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|
1616 if (found) |
|
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|
1617 { |
|
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|
1618 retval.xridx (ii) = l; |
|
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|
1619 retval.xdata (ii++) = b.data (k) / data (i); |
|
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|
1620 } |
|
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|
1621 } |
|
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|
1622 retval.xcidx (j+1) = ii; |
|
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1623 } |
|
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1624 |
|
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|
1625 if (calc_cond) |
|
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|
1626 { |
|
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1627 double dmax = 0., dmin = octave_Inf; |
|
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|
1628 for (octave_idx_type i = 0; i < nm; i++) |
|
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|
1629 { |
|
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|
1630 double tmp = fabs (data (i)); |
|
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|
1631 if (tmp > dmax) |
|
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|
1632 dmax = tmp; |
|
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|
1633 if (tmp < dmin) |
|
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|
1634 dmin = tmp; |
|
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|
1635 } |
|
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|
1636 rcond = dmin / dmax; |
|
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|
1637 } |
|
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|
1638 else |
|
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|
1639 rcond = 1.; |
|
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|
1640 } |
| 5164 | 1641 else |
|
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|
1642 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 1643 } |
| 1644 | |
| 1645 return retval; | |
| 1646 } | |
| 1647 | |
| 1648 Matrix | |
| 5785 | 1649 SparseMatrix::utsolve (MatrixType &mattype, const Matrix& b, |
|
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|
1650 octave_idx_type& err, double& rcond, |
|
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1651 solve_singularity_handler sing_handler, |
|
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|
1652 bool calc_cond) const |
| 5164 | 1653 { |
| 1654 Matrix retval; | |
| 1655 | |
| 5275 | 1656 octave_idx_type nr = rows (); |
| 1657 octave_idx_type nc = cols (); | |
| 5630 | 1658 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 1659 err = 0; |
| 1660 | |
| 6924 | 1661 if (nr != b.rows ()) |
| 5164 | 1662 (*current_liboctave_error_handler) |
| 1663 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 1664 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 1665 retval = Matrix (nc, b.cols (), 0.0); | |
| 5164 | 1666 else |
| 1667 { | |
| 1668 // Print spparms("spumoni") info if requested | |
| 1669 int typ = mattype.type (); | |
| 1670 mattype.info (); | |
| 1671 | |
| 5785 | 1672 if (typ == MatrixType::Permuted_Upper || |
|
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|
1673 typ == MatrixType::Upper) |
|
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|
1674 { |
|
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|
1675 double anorm = 0.; |
|
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|
1676 double ainvnorm = 0.; |
|
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|
1677 octave_idx_type b_nc = b.cols (); |
|
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|
1678 rcond = 1.; |
|
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|
1679 |
|
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|
1680 if (calc_cond) |
|
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|
1681 { |
|
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|
1682 // Calculate the 1-norm of matrix for rcond calculation |
|
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|
1683 for (octave_idx_type j = 0; j < nc; j++) |
|
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|
1684 { |
|
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|
1685 double atmp = 0.; |
|
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1686 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
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|
1687 atmp += fabs (data (i)); |
|
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|
1688 if (atmp > anorm) |
|
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|
1689 anorm = atmp; |
|
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|
1690 } |
|
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diff
changeset
|
1691 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1692 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1693 if (typ == MatrixType::Permuted_Upper) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1694 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1695 retval.resize (nc, b_nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1696 octave_idx_type *perm = mattype.triangular_perm (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1697 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1698 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1699 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1700 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1701 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1702 work[i] = b(i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1703 for (octave_idx_type i = nr; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1704 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1705 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1706 for (octave_idx_type k = nc-1; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1707 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1708 octave_idx_type kidx = perm[k]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1709 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1710 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1711 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1712 if (ridx (cidx (kidx+1)-1) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1713 data (cidx (kidx+1)-1) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1714 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1715 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1716 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
1717 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1718 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1719 double tmp = work[k] / data (cidx (kidx+1)-1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1720 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1721 for (octave_idx_type i = cidx (kidx); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1722 i < cidx (kidx+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1723 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1724 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1725 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1726 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1727 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1728 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1729 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1730 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1731 retval.xelem (perm[i], j) = work[i]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1732 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1733 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1734 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1735 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1736 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1737 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1738 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1739 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1740 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1741 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1742 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1743 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1744 for (octave_idx_type k = j; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1745 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1746 octave_idx_type iidx = perm[k]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1747 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1748 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1749 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1750 double tmp = work[k] / data (cidx (iidx+1)-1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1751 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1752 for (octave_idx_type i = cidx (iidx); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1753 i < cidx (iidx+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1754 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1755 octave_idx_type idx2 = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1756 work[idx2] = work[idx2] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1757 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1758 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1759 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1760 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1761 for (octave_idx_type i = 0; i < j+1; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1762 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1763 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1764 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1765 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1766 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1767 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1768 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1769 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1770 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1771 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1772 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1773 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1774 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1775 retval.resize (nc, b_nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1776 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1777 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1778 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1779 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1780 work[i] = b(i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1781 for (octave_idx_type i = nr; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1782 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1783 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1784 for (octave_idx_type k = nc-1; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1785 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1786 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1787 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1788 if (ridx (cidx (k+1)-1) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1789 data (cidx (k+1)-1) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1790 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1791 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1792 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
1793 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1794 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1795 double tmp = work[k] / data (cidx (k+1)-1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1796 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1797 for (octave_idx_type i = cidx (k); i < cidx (k+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1798 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1799 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1800 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1801 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1802 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1803 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1804 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1805 for (octave_idx_type i = 0; i < nc; i++) |
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1806 retval.xelem (i, j) = work[i]; |
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1807 } |
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1808 |
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1809 if (calc_cond) |
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1810 { |
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1811 // Calculation of 1-norm of inv(*this) |
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1812 for (octave_idx_type i = 0; i < nm; i++) |
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1813 work[i] = 0.; |
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1814 |
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1815 for (octave_idx_type j = 0; j < nr; j++) |
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1816 { |
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1817 work[j] = 1.; |
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1818 |
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1819 for (octave_idx_type k = j; k >= 0; k--) |
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1820 { |
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1821 if (work[k] != 0.) |
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1822 { |
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1823 double tmp = work[k] / data (cidx (k+1)-1); |
|
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1824 work[k] = tmp; |
|
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1825 for (octave_idx_type i = cidx (k); i < cidx (k+1)-1; i++) |
|
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1826 { |
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1827 octave_idx_type iidx = ridx (i); |
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1828 work[iidx] = work[iidx] - tmp * data (i); |
|
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1829 } |
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1830 } |
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1831 } |
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1832 double atmp = 0; |
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1833 for (octave_idx_type i = 0; i < j+1; i++) |
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1834 { |
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1835 atmp += fabs (work[i]); |
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1836 work[i] = 0.; |
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1837 } |
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1838 if (atmp > ainvnorm) |
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1839 ainvnorm = atmp; |
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1840 } |
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1841 rcond = 1. / ainvnorm / anorm; |
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1842 } |
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1843 } |
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1844 |
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1845 triangular_error: |
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1846 if (err != 0) |
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1847 { |
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1848 if (sing_handler) |
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1849 { |
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1850 sing_handler (rcond); |
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1851 mattype.mark_as_rectangular (); |
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1852 } |
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1853 else |
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1854 (*current_liboctave_error_handler) |
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1855 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
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1856 rcond); |
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1857 } |
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1858 |
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1859 volatile double rcond_plus_one = rcond + 1.0; |
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1860 |
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1861 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
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1862 { |
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1863 err = -2; |
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1864 |
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1865 if (sing_handler) |
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1866 { |
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1867 sing_handler (rcond); |
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1868 mattype.mark_as_rectangular (); |
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1869 } |
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1870 else |
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1871 (*current_liboctave_error_handler) |
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1872 ("matrix singular to machine precision, rcond = %g", |
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1873 rcond); |
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1874 } |
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1875 } |
| 5164 | 1876 else |
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1877 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 1878 } |
| 1879 | |
| 1880 return retval; | |
| 1881 } | |
| 1882 | |
| 1883 SparseMatrix | |
| 5785 | 1884 SparseMatrix::utsolve (MatrixType &mattype, const SparseMatrix& b, |
|
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1885 octave_idx_type& err, double& rcond, |
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1886 solve_singularity_handler sing_handler, |
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1887 bool calc_cond) const |
| 5164 | 1888 { |
| 1889 SparseMatrix retval; | |
| 1890 | |
| 5275 | 1891 octave_idx_type nr = rows (); |
| 1892 octave_idx_type nc = cols (); | |
| 5630 | 1893 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 1894 err = 0; |
| 1895 | |
| 6924 | 1896 if (nr != b.rows ()) |
| 5164 | 1897 (*current_liboctave_error_handler) |
| 1898 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 1899 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 1900 retval = SparseMatrix (nc, b.cols ()); | |
| 5164 | 1901 else |
| 1902 { | |
| 1903 // Print spparms("spumoni") info if requested | |
| 1904 int typ = mattype.type (); | |
| 1905 mattype.info (); | |
| 1906 | |
| 5785 | 1907 if (typ == MatrixType::Permuted_Upper || |
|
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1908 typ == MatrixType::Upper) |
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1909 { |
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1910 double anorm = 0.; |
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1911 double ainvnorm = 0.; |
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1912 rcond = 1.; |
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1913 |
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1914 if (calc_cond) |
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1915 { |
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1916 // Calculate the 1-norm of matrix for rcond calculation |
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1917 for (octave_idx_type j = 0; j < nc; j++) |
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1918 { |
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1919 double atmp = 0.; |
|
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1920 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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1921 atmp += fabs (data (i)); |
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1922 if (atmp > anorm) |
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1923 anorm = atmp; |
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1924 } |
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1925 } |
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1926 |
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1927 octave_idx_type b_nc = b.cols (); |
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1928 octave_idx_type b_nz = b.nnz (); |
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1929 retval = SparseMatrix (nc, b_nc, b_nz); |
|
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1930 retval.xcidx (0) = 0; |
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1931 octave_idx_type ii = 0; |
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1932 octave_idx_type x_nz = b_nz; |
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1933 |
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1934 if (typ == MatrixType::Permuted_Upper) |
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1935 { |
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1936 octave_idx_type *perm = mattype.triangular_perm (); |
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1937 OCTAVE_LOCAL_BUFFER (double, work, nm); |
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1938 |
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1939 OCTAVE_LOCAL_BUFFER (octave_idx_type, rperm, nc); |
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1940 for (octave_idx_type i = 0; i < nc; i++) |
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1941 rperm[perm[i]] = i; |
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1942 |
|
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1943 for (octave_idx_type j = 0; j < b_nc; j++) |
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1944 { |
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1945 for (octave_idx_type i = 0; i < nm; i++) |
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1946 work[i] = 0.; |
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1947 for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++) |
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1948 work[b.ridx (i)] = b.data (i); |
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1949 |
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1950 for (octave_idx_type k = nc-1; k >= 0; k--) |
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1951 { |
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1952 octave_idx_type kidx = perm[k]; |
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1953 |
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1954 if (work[k] != 0.) |
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1955 { |
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1956 if (ridx (cidx (kidx+1)-1) != k || |
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1957 data (cidx (kidx+1)-1) == 0.) |
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1958 { |
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1959 err = -2; |
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1960 goto triangular_error; |
|
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1961 } |
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1962 |
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1963 double tmp = work[k] / data (cidx (kidx+1)-1); |
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1964 work[k] = tmp; |
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1965 for (octave_idx_type i = cidx (kidx); |
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1966 i < cidx (kidx+1)-1; i++) |
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|
1967 { |
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1968 octave_idx_type iidx = ridx (i); |
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1969 work[iidx] = work[iidx] - tmp * data (i); |
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1970 } |
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|
1971 } |
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|
1972 } |
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|
1973 |
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1974 // Count non-zeros in work vector and adjust space in |
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1975 // retval if needed |
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1976 octave_idx_type new_nnz = 0; |
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1977 for (octave_idx_type i = 0; i < nc; i++) |
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1978 if (work[i] != 0.) |
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1979 new_nnz++; |
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|
1980 |
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|
1981 if (ii + new_nnz > x_nz) |
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|
1982 { |
|
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|
1983 // Resize the sparse matrix |
|
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1984 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
|
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|
1985 retval.change_capacity (sz); |
|
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|
1986 x_nz = sz; |
|
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changeset
|
1987 } |
|
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changeset
|
1988 |
|
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|
1989 for (octave_idx_type i = 0; i < nc; i++) |
|
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|
1990 if (work[rperm[i]] != 0.) |
|
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|
1991 { |
|
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|
1992 retval.xridx (ii) = i; |
|
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|
1993 retval.xdata (ii++) = work[rperm[i]]; |
|
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|
1994 } |
|
15018
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maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
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|
1995 retval.xcidx (j+1) = ii; |
|
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|
1996 } |
|
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changeset
|
1997 |
|
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changeset
|
1998 retval.maybe_compress (); |
|
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changeset
|
1999 |
|
07ebe522dac2
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|
2000 if (calc_cond) |
|
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|
2001 { |
|
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changeset
|
2002 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
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|
2003 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
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changeset
|
2004 work[i] = 0.; |
|
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changeset
|
2005 |
|
07ebe522dac2
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changeset
|
2006 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
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changeset
|
2007 { |
|
07ebe522dac2
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changeset
|
2008 work[j] = 1.; |
|
07ebe522dac2
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changeset
|
2009 |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
2010 for (octave_idx_type k = j; k >= 0; k--) |
|
07ebe522dac2
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diff
changeset
|
2011 { |
|
07ebe522dac2
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changeset
|
2012 octave_idx_type iidx = perm[k]; |
|
07ebe522dac2
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diff
changeset
|
2013 |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
2014 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2015 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2016 double tmp = work[k] / data (cidx (iidx+1)-1); |
|
10314
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changeset
|
2017 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
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diff
changeset
|
2018 for (octave_idx_type i = cidx (iidx); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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diff
changeset
|
2019 i < cidx (iidx+1)-1; i++) |
|
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2020 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2021 octave_idx_type idx2 = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2022 work[idx2] = work[idx2] - tmp * data (i); |
|
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diff
changeset
|
2023 } |
|
07ebe522dac2
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diff
changeset
|
2024 } |
|
07ebe522dac2
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diff
changeset
|
2025 } |
|
07ebe522dac2
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changeset
|
2026 double atmp = 0; |
|
07ebe522dac2
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changeset
|
2027 for (octave_idx_type i = 0; i < j+1; i++) |
|
07ebe522dac2
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diff
changeset
|
2028 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
2029 atmp += fabs (work[i]); |
|
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changeset
|
2030 work[i] = 0.; |
|
07ebe522dac2
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diff
changeset
|
2031 } |
|
07ebe522dac2
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diff
changeset
|
2032 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2033 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2034 } |
|
07ebe522dac2
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diff
changeset
|
2035 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2036 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2037 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2038 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2039 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2040 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2041 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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changeset
|
2042 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2043 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2044 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2045 work[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2046 for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2047 work[b.ridx (i)] = b.data (i); |
|
10314
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2048 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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changeset
|
2049 for (octave_idx_type k = nc-1; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2050 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2051 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2052 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2053 if (ridx (cidx (k+1)-1) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2054 data (cidx (k+1)-1) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2055 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2056 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2057 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2058 } |
|
10314
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2059 |
|
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2060 double tmp = work[k] / data (cidx (k+1)-1); |
|
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2061 work[k] = tmp; |
|
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2062 for (octave_idx_type i = cidx (k); i < cidx (k+1)-1; i++) |
|
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2063 { |
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2064 octave_idx_type iidx = ridx (i); |
|
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|
2065 work[iidx] = work[iidx] - tmp * data (i); |
|
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2066 } |
|
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2067 } |
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2068 } |
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|
2069 |
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2070 // Count non-zeros in work vector and adjust space in |
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2071 // retval if needed |
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2072 octave_idx_type new_nnz = 0; |
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2073 for (octave_idx_type i = 0; i < nc; i++) |
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2074 if (work[i] != 0.) |
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2075 new_nnz++; |
|
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|
2076 |
|
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2077 if (ii + new_nnz > x_nz) |
|
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2078 { |
|
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|
2079 // Resize the sparse matrix |
|
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2080 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
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2081 retval.change_capacity (sz); |
|
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2082 x_nz = sz; |
|
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2083 } |
|
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|
2084 |
|
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2085 for (octave_idx_type i = 0; i < nc; i++) |
|
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2086 if (work[i] != 0.) |
|
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|
2087 { |
|
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2088 retval.xridx (ii) = i; |
|
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2089 retval.xdata (ii++) = work[i]; |
|
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2090 } |
|
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|
2091 retval.xcidx (j+1) = ii; |
|
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|
2092 } |
|
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|
2093 |
|
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2094 retval.maybe_compress (); |
|
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2095 |
|
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2096 if (calc_cond) |
|
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|
2097 { |
|
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|
2098 // Calculation of 1-norm of inv(*this) |
|
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2099 for (octave_idx_type i = 0; i < nm; i++) |
|
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2100 work[i] = 0.; |
|
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2101 |
|
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|
2102 for (octave_idx_type j = 0; j < nr; j++) |
|
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|
2103 { |
|
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|
2104 work[j] = 1.; |
|
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2105 |
|
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|
2106 for (octave_idx_type k = j; k >= 0; k--) |
|
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|
2107 { |
|
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|
2108 if (work[k] != 0.) |
|
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|
2109 { |
|
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|
2110 double tmp = work[k] / data (cidx (k+1)-1); |
|
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|
2111 work[k] = tmp; |
|
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|
2112 for (octave_idx_type i = cidx (k); |
|
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|
2113 i < cidx (k+1)-1; i++) |
|
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|
2114 { |
|
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|
2115 octave_idx_type iidx = ridx (i); |
|
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|
2116 work[iidx] = work[iidx] - tmp * data (i); |
|
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|
2117 } |
|
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|
2118 } |
|
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|
2119 } |
|
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|
2120 double atmp = 0; |
|
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2121 for (octave_idx_type i = 0; i < j+1; i++) |
|
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|
2122 { |
|
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|
2123 atmp += fabs (work[i]); |
|
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2124 work[i] = 0.; |
|
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|
2125 } |
|
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|
2126 if (atmp > ainvnorm) |
|
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|
2127 ainvnorm = atmp; |
|
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|
2128 } |
|
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|
2129 rcond = 1. / ainvnorm / anorm; |
|
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|
2130 } |
|
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|
2131 } |
|
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|
2132 |
|
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|
2133 triangular_error: |
|
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|
2134 if (err != 0) |
|
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|
2135 { |
|
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|
2136 if (sing_handler) |
|
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|
2137 { |
|
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|
2138 sing_handler (rcond); |
|
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|
2139 mattype.mark_as_rectangular (); |
|
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|
2140 } |
|
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|
2141 else |
|
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|
2142 (*current_liboctave_error_handler) |
|
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|
2143 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
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|
2144 rcond); |
|
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|
2145 } |
|
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|
2146 |
|
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|
2147 volatile double rcond_plus_one = rcond + 1.0; |
|
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|
2148 |
|
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|
2149 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
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|
2150 { |
|
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|
2151 err = -2; |
|
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|
2152 |
|
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|
2153 if (sing_handler) |
|
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|
2154 { |
|
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|
2155 sing_handler (rcond); |
|
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|
2156 mattype.mark_as_rectangular (); |
|
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|
2157 } |
|
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|
2158 else |
|
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|
2159 (*current_liboctave_error_handler) |
|
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|
2160 ("matrix singular to machine precision, rcond = %g", |
|
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|
2161 rcond); |
|
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|
2162 } |
|
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|
2163 } |
| 5164 | 2164 else |
|
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|
2165 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 2166 } |
| 2167 return retval; | |
| 2168 } | |
| 2169 | |
| 2170 ComplexMatrix | |
|
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2171 SparseMatrix::utsolve (MatrixType &mattype, const ComplexMatrix& b, |
|
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2172 octave_idx_type& err, double& rcond, |
|
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|
2173 solve_singularity_handler sing_handler, |
|
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|
2174 bool calc_cond) const |
| 5164 | 2175 { |
| 2176 ComplexMatrix retval; | |
| 2177 | |
| 5275 | 2178 octave_idx_type nr = rows (); |
| 2179 octave_idx_type nc = cols (); | |
| 5630 | 2180 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 2181 err = 0; |
| 2182 | |
| 6924 | 2183 if (nr != b.rows ()) |
| 5164 | 2184 (*current_liboctave_error_handler) |
| 2185 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 2186 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 2187 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0)); | |
| 5164 | 2188 else |
| 2189 { | |
| 2190 // Print spparms("spumoni") info if requested | |
| 2191 int typ = mattype.type (); | |
| 2192 mattype.info (); | |
|
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2193 |
| 5785 | 2194 if (typ == MatrixType::Permuted_Upper || |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2195 typ == MatrixType::Upper) |
|
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2196 { |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2197 double anorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2198 double ainvnorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2199 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2200 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2201 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2202 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2203 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2204 // Calculate the 1-norm of matrix for rcond calculation |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2205 for (octave_idx_type j = 0; j < nc; j++) |
|
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2206 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2207 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2208 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2209 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
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diff
changeset
|
2210 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2211 anorm = atmp; |
|
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10158
diff
changeset
|
2212 } |
|
07ebe522dac2
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parents:
10158
diff
changeset
|
2213 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2214 |
|
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2215 if (typ == MatrixType::Permuted_Upper) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2216 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2217 retval.resize (nc, b_nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2218 octave_idx_type *perm = mattype.triangular_perm (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2219 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2220 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2221 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2222 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2223 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2224 cwork[i] = b(i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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changeset
|
2225 for (octave_idx_type i = nr; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2226 cwork[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2227 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2228 for (octave_idx_type k = nc-1; k >= 0; k--) |
|
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2229 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2230 octave_idx_type kidx = perm[k]; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2231 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2232 if (cwork[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2233 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2234 if (ridx (cidx (kidx+1)-1) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2235 data (cidx (kidx+1)-1) == 0.) |
|
10314
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2236 { |
|
07ebe522dac2
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10158
diff
changeset
|
2237 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2238 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2239 } |
|
10314
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2240 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2241 Complex tmp = cwork[k] / data (cidx (kidx+1)-1); |
|
10314
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2242 cwork[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2243 for (octave_idx_type i = cidx (kidx); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2244 i < cidx (kidx+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2245 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2246 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2247 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
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10158
diff
changeset
|
2248 } |
|
07ebe522dac2
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10158
diff
changeset
|
2249 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2250 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2251 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2252 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2253 retval.xelem (perm[i], j) = cwork[i]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2254 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2255 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2256 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2257 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2258 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2259 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2260 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2261 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2262 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2263 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2264 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2265 work[j] = 1.; |
|
07ebe522dac2
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10158
diff
changeset
|
2266 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2267 for (octave_idx_type k = j; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2268 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2269 octave_idx_type iidx = perm[k]; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2270 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2271 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2272 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2273 double tmp = work[k] / data (cidx (iidx+1)-1); |
|
10314
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2274 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2275 for (octave_idx_type i = cidx (iidx); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2276 i < cidx (iidx+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2277 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2278 octave_idx_type idx2 = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2279 work[idx2] = work[idx2] - tmp * data (i); |
|
10314
07ebe522dac2
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diff
changeset
|
2280 } |
|
07ebe522dac2
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10158
diff
changeset
|
2281 } |
|
07ebe522dac2
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parents:
10158
diff
changeset
|
2282 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2283 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2284 for (octave_idx_type i = 0; i < j+1; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2285 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2286 atmp += fabs (work[i]); |
|
10314
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10158
diff
changeset
|
2287 work[i] = 0.; |
|
07ebe522dac2
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diff
changeset
|
2288 } |
|
07ebe522dac2
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diff
changeset
|
2289 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2290 ainvnorm = atmp; |
|
07ebe522dac2
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diff
changeset
|
2291 } |
|
07ebe522dac2
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10158
diff
changeset
|
2292 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
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10158
diff
changeset
|
2293 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2294 } |
|
07ebe522dac2
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parents:
10158
diff
changeset
|
2295 else |
|
07ebe522dac2
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10158
diff
changeset
|
2296 { |
|
07ebe522dac2
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diff
changeset
|
2297 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2298 retval.resize (nc, b_nc); |
|
07ebe522dac2
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10158
diff
changeset
|
2299 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2300 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2301 { |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2302 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2303 cwork[i] = b(i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2304 for (octave_idx_type i = nr; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2305 cwork[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2306 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2307 for (octave_idx_type k = nc-1; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2308 { |
|
07ebe522dac2
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|
2309 if (cwork[k] != 0.) |
|
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|
2310 { |
|
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Rik <rik@octave.org>
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|
2311 if (ridx (cidx (k+1)-1) != k || |
|
3d8ace26c5b4
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changeset
|
2312 data (cidx (k+1)-1) == 0.) |
|
10314
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|
2313 { |
|
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|
2314 err = -2; |
|
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|
2315 goto triangular_error; |
|
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|
2316 } |
|
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|
2317 |
|
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Rik <rik@octave.org>
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|
2318 Complex tmp = cwork[k] / data (cidx (k+1)-1); |
|
10314
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|
2319 cwork[k] = tmp; |
|
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|
2320 for (octave_idx_type i = cidx (k); i < cidx (k+1)-1; i++) |
|
10314
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|
2321 { |
|
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diff
changeset
|
2322 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
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diff
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|
2323 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
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|
2324 } |
|
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|
2325 } |
|
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|
2326 } |
|
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|
2327 |
|
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|
2328 for (octave_idx_type i = 0; i < nc; i++) |
|
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|
2329 retval.xelem (i, j) = cwork[i]; |
|
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|
2330 } |
|
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|
2331 |
|
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|
2332 if (calc_cond) |
|
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|
2333 { |
|
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|
2334 // Calculation of 1-norm of inv(*this) |
|
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untabify liboctave C++ sources
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|
2335 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
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untabify liboctave C++ sources
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|
2336 for (octave_idx_type i = 0; i < nm; i++) |
|
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untabify liboctave C++ sources
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|
2337 work[i] = 0.; |
|
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|
2338 |
|
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|
2339 for (octave_idx_type j = 0; j < nr; j++) |
|
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|
2340 { |
|
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|
2341 work[j] = 1.; |
|
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|
2342 |
|
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|
2343 for (octave_idx_type k = j; k >= 0; k--) |
|
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|
2344 { |
|
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changeset
|
2345 if (work[k] != 0.) |
|
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untabify liboctave C++ sources
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|
2346 { |
|
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Rik <rik@octave.org>
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changeset
|
2347 double tmp = work[k] / data (cidx (k+1)-1); |
|
10314
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|
2348 work[k] = tmp; |
|
15018
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maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
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diff
changeset
|
2349 for (octave_idx_type i = cidx (k); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
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changeset
|
2350 i < cidx (k+1)-1; i++) |
|
10314
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|
2351 { |
|
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|
2352 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
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|
2353 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
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|
2354 } |
|
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changeset
|
2355 } |
|
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changeset
|
2356 } |
|
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|
2357 double atmp = 0; |
|
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untabify liboctave C++ sources
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|
2358 for (octave_idx_type i = 0; i < j+1; i++) |
|
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|
2359 { |
|
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|
2360 atmp += fabs (work[i]); |
|
10314
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|
2361 work[i] = 0.; |
|
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|
2362 } |
|
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|
2363 if (atmp > ainvnorm) |
|
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untabify liboctave C++ sources
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|
2364 ainvnorm = atmp; |
|
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|
2365 } |
|
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|
2366 rcond = 1. / ainvnorm / anorm; |
|
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|
2367 } |
|
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changeset
|
2368 } |
|
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|
2369 |
|
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|
2370 triangular_error: |
|
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|
2371 if (err != 0) |
|
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|
2372 { |
|
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|
2373 if (sing_handler) |
|
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|
2374 { |
|
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changeset
|
2375 sing_handler (rcond); |
|
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|
2376 mattype.mark_as_rectangular (); |
|
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|
2377 } |
|
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|
2378 else |
|
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|
2379 (*current_liboctave_error_handler) |
|
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|
2380 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
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|
2381 rcond); |
|
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changeset
|
2382 } |
|
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changeset
|
2383 |
|
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|
2384 volatile double rcond_plus_one = rcond + 1.0; |
|
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|
2385 |
|
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|
2386 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
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|
2387 { |
|
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changeset
|
2388 err = -2; |
|
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|
2389 |
|
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changeset
|
2390 if (sing_handler) |
|
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|
2391 { |
|
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changeset
|
2392 sing_handler (rcond); |
|
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|
2393 mattype.mark_as_rectangular (); |
|
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|
2394 } |
|
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|
2395 else |
|
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|
2396 (*current_liboctave_error_handler) |
|
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|
2397 ("matrix singular to machine precision, rcond = %g", |
|
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|
2398 rcond); |
|
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|
2399 } |
|
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|
2400 } |
| 5164 | 2401 else |
|
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|
2402 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 2403 } |
| 2404 | |
| 2405 return retval; | |
| 2406 } | |
| 2407 | |
| 2408 SparseComplexMatrix | |
| 5785 | 2409 SparseMatrix::utsolve (MatrixType &mattype, const SparseComplexMatrix& b, |
|
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|
2410 octave_idx_type& err, double& rcond, |
|
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|
2411 solve_singularity_handler sing_handler, |
|
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|
2412 bool calc_cond) const |
| 5164 | 2413 { |
| 2414 SparseComplexMatrix retval; | |
| 2415 | |
| 5275 | 2416 octave_idx_type nr = rows (); |
| 2417 octave_idx_type nc = cols (); | |
| 5630 | 2418 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 2419 err = 0; |
| 2420 | |
| 6924 | 2421 if (nr != b.rows ()) |
| 5164 | 2422 (*current_liboctave_error_handler) |
| 2423 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 2424 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 2425 retval = SparseComplexMatrix (nc, b.cols ()); | |
| 5164 | 2426 else |
| 2427 { | |
| 2428 // Print spparms("spumoni") info if requested | |
| 2429 int typ = mattype.type (); | |
| 2430 mattype.info (); | |
|
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2431 |
| 5785 | 2432 if (typ == MatrixType::Permuted_Upper || |
|
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|
2433 typ == MatrixType::Upper) |
|
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|
2434 { |
|
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changeset
|
2435 double anorm = 0.; |
|
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changeset
|
2436 double ainvnorm = 0.; |
|
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|
2437 rcond = 1.; |
|
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|
2438 |
|
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changeset
|
2439 if (calc_cond) |
|
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changeset
|
2440 { |
|
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changeset
|
2441 // Calculate the 1-norm of matrix for rcond calculation |
|
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|
2442 for (octave_idx_type j = 0; j < nc; j++) |
|
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|
2443 { |
|
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changeset
|
2444 double atmp = 0.; |
|
15018
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changeset
|
2445 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
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changeset
|
2446 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2447 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2448 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2449 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2450 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2451 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2452 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2453 octave_idx_type b_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2454 retval = SparseComplexMatrix (nc, b_nc, b_nz); |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2455 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2456 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2457 octave_idx_type x_nz = b_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2458 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2459 if (typ == MatrixType::Permuted_Upper) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2460 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2461 octave_idx_type *perm = mattype.triangular_perm (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2462 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2463 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2464 OCTAVE_LOCAL_BUFFER (octave_idx_type, rperm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2465 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2466 rperm[perm[i]] = i; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2467 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2468 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2469 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2470 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2471 cwork[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2472 for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2473 cwork[b.ridx (i)] = b.data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2474 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2475 for (octave_idx_type k = nc-1; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2476 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2477 octave_idx_type kidx = perm[k]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2478 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2479 if (cwork[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2480 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2481 if (ridx (cidx (kidx+1)-1) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2482 data (cidx (kidx+1)-1) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2483 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2484 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2485 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2486 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2487 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2488 Complex tmp = cwork[k] / data (cidx (kidx+1)-1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2489 cwork[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2490 for (octave_idx_type i = cidx (kidx); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2491 i < cidx (kidx+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2492 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2493 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2494 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2495 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2496 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2497 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2498 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2499 // Count non-zeros in work vector and adjust space in |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2500 // retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2501 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2502 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2503 if (cwork[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2504 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2505 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2506 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2507 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2508 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2509 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2510 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2511 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2512 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2513 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2514 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2515 if (cwork[rperm[i]] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2516 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2517 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2518 retval.xdata (ii++) = cwork[rperm[i]]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2519 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2520 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2521 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2522 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2523 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2524 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2525 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2526 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2527 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2528 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2529 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2530 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2531 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2532 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2533 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2534 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2535 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2536 for (octave_idx_type k = j; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2537 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2538 octave_idx_type iidx = perm[k]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2539 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2540 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2541 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2542 double tmp = work[k] / data (cidx (iidx+1)-1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2543 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2544 for (octave_idx_type i = cidx (iidx); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2545 i < cidx (iidx+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2546 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2547 octave_idx_type idx2 = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2548 work[idx2] = work[idx2] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2549 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2550 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2551 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2552 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2553 for (octave_idx_type i = 0; i < j+1; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2554 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2555 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2556 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2557 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2558 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2559 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2560 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2561 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2562 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2563 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2564 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2565 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2566 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2567 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2568 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2569 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2570 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2571 cwork[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2572 for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2573 cwork[b.ridx (i)] = b.data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2574 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2575 for (octave_idx_type k = nc-1; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2576 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2577 if (cwork[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2578 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2579 if (ridx (cidx (k+1)-1) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2580 data (cidx (k+1)-1) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2581 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2582 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2583 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2584 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2585 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2586 Complex tmp = cwork[k] / data (cidx (k+1)-1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2587 cwork[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2588 for (octave_idx_type i = cidx (k); i < cidx (k+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2589 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2590 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2591 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2592 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2593 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2594 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2595 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2596 // Count non-zeros in work vector and adjust space in |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2597 // retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2598 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2599 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2600 if (cwork[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2601 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2602 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2603 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2604 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2605 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2606 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2607 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2608 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2609 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2610 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2611 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2612 if (cwork[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2613 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2614 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2615 retval.xdata (ii++) = cwork[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2616 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2617 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2618 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2619 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2620 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2621 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2622 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2623 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2624 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2625 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2626 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2627 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2628 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2629 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2630 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2631 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2632 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2633 for (octave_idx_type k = j; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2634 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2635 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2636 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2637 double tmp = work[k] / data (cidx (k+1)-1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2638 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2639 for (octave_idx_type i = cidx (k); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2640 i < cidx (k+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2641 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2642 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2643 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2644 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2645 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2646 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2647 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2648 for (octave_idx_type i = 0; i < j+1; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2649 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2650 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2651 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2652 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2653 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2654 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2655 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2656 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2657 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2658 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2659 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2660 triangular_error: |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2661 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2662 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2663 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2664 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2665 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2666 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2667 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2668 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2669 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2670 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2671 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2672 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2673 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2674 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2675 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2676 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2677 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2678 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2679 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2680 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2681 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2682 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2683 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2684 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2685 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2686 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2687 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2688 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2689 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2690 } |
| 5164 | 2691 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2692 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 2693 } |
| 2694 | |
| 2695 return retval; | |
| 2696 } | |
| 2697 | |
| 2698 Matrix | |
| 5785 | 2699 SparseMatrix::ltsolve (MatrixType &mattype, const Matrix& b, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2700 octave_idx_type& err, double& rcond, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2701 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2702 bool calc_cond) const |
| 5164 | 2703 { |
| 2704 Matrix retval; | |
| 2705 | |
| 5275 | 2706 octave_idx_type nr = rows (); |
| 2707 octave_idx_type nc = cols (); | |
| 5630 | 2708 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 2709 err = 0; |
| 2710 | |
| 6924 | 2711 if (nr != b.rows ()) |
| 5164 | 2712 (*current_liboctave_error_handler) |
| 2713 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 2714 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 2715 retval = Matrix (nc, b.cols (), 0.0); | |
| 5164 | 2716 else |
| 2717 { | |
| 2718 // Print spparms("spumoni") info if requested | |
| 2719 int typ = mattype.type (); | |
| 2720 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2721 |
| 5785 | 2722 if (typ == MatrixType::Permuted_Lower || |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2723 typ == MatrixType::Lower) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2724 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2725 double anorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2726 double ainvnorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2727 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2728 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2729 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2730 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2731 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2732 // Calculate the 1-norm of matrix for rcond calculation |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2733 for (octave_idx_type j = 0; j < nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2734 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2735 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2736 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2737 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2738 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2739 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2740 } |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2741 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2742 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2743 if (typ == MatrixType::Permuted_Lower) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2744 { |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2745 retval.resize (nc, b_nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2746 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2747 octave_idx_type *perm = mattype.triangular_perm (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2748 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2749 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2750 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2751 if (nc > nr) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2752 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2753 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2754 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2755 work[perm[i]] = b(i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2756 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2757 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2758 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2759 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2760 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2761 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2762 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2763 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2764 for (octave_idx_type i = cidx (k); i < cidx (k+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2765 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2766 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2767 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2768 mini = i; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2769 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2770 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2771 if (minr != k || data (mini) == 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2772 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2773 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2774 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
2775 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2776 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2777 double tmp = work[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2778 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2779 for (octave_idx_type i = cidx (k); i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2780 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2781 if (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2782 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2783 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2784 octave_idx_type iidx = perm[ridx (i)]; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2785 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2786 } |
|
07ebe522dac2
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10158
diff
changeset
|
2787 } |
|
07ebe522dac2
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diff
changeset
|
2788 } |
|
07ebe522dac2
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diff
changeset
|
2789 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2790 for (octave_idx_type i = 0; i < nc; i++) |
|
14844
5bc9b9cb4362
maint: Use Octave coding conventions for cuddled parenthesis in retval assignments.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
2791 retval(i, j) = work[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2792 } |
|
07ebe522dac2
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10158
diff
changeset
|
2793 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2794 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2795 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2796 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
2797 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2798 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2799 |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
2800 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2801 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2802 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2803 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
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changeset
|
2804 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2805 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2806 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2807 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2808 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2809 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2810 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2811 for (octave_idx_type i = cidx (k); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2812 i < cidx (k+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2813 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2814 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2815 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2816 mini = i; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2817 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2818 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2819 double tmp = work[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2820 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2821 for (octave_idx_type i = cidx (k); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2822 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2823 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2824 if (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2825 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2826 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2827 octave_idx_type iidx = perm[ridx (i)]; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2828 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2829 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2830 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2831 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2832 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2833 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2834 for (octave_idx_type i = j; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2835 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2836 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2837 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2838 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2839 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2840 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2841 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2842 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2843 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2844 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2845 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2846 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2847 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2848 retval.resize (nc, b_nc, 0.); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2849 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2850 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2851 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2852 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2853 work[i] = b(i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2854 for (octave_idx_type i = nr; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2855 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2856 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2857 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2858 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2859 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2860 if (ridx (cidx (k)) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2861 data (cidx (k)) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2862 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2863 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2864 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2865 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2866 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2867 double tmp = work[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2868 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2869 for (octave_idx_type i = cidx (k)+1; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2870 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2871 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2872 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2873 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2874 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2875 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2876 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2877 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2878 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2879 retval.xelem (i, j) = work[i]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2880 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2881 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2882 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2883 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2884 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2885 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2886 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2887 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2888 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2889 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2890 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2891 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2892 for (octave_idx_type k = j; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2893 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2894 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2895 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2896 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2897 double tmp = work[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2898 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2899 for (octave_idx_type i = cidx (k)+1; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2900 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2901 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2902 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2903 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2904 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2905 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2906 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2907 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2908 for (octave_idx_type i = j; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2909 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2910 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2911 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2912 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2913 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2914 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2915 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2916 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2917 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2918 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2919 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2920 triangular_error: |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2921 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2922 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2923 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2924 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2925 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2926 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2927 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2928 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2929 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2930 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2931 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2932 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2933 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2934 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2935 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2936 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2937 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2938 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2939 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2940 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2941 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2942 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2943 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2944 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2945 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2946 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2947 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2948 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2949 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2950 } |
| 5164 | 2951 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2952 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 2953 } |
| 2954 | |
| 2955 return retval; | |
| 2956 } | |
| 2957 | |
| 2958 SparseMatrix | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2959 SparseMatrix::ltsolve (MatrixType &mattype, const SparseMatrix& b, |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2960 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2961 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2962 bool calc_cond) const |
| 5164 | 2963 { |
| 2964 SparseMatrix retval; | |
| 2965 | |
| 5275 | 2966 octave_idx_type nr = rows (); |
| 2967 octave_idx_type nc = cols (); | |
| 5630 | 2968 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 2969 err = 0; |
| 2970 | |
| 6924 | 2971 if (nr != b.rows ()) |
| 5164 | 2972 (*current_liboctave_error_handler) |
| 2973 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 2974 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 2975 retval = SparseMatrix (nc, b.cols ()); | |
| 5164 | 2976 else |
| 2977 { | |
| 2978 // Print spparms("spumoni") info if requested | |
| 2979 int typ = mattype.type (); | |
| 2980 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2981 |
| 5785 | 2982 if (typ == MatrixType::Permuted_Lower || |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2983 typ == MatrixType::Lower) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2984 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2985 double anorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2986 double ainvnorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2987 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2988 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2989 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2990 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2991 // Calculate the 1-norm of matrix for rcond calculation |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2992 for (octave_idx_type j = 0; j < nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2993 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2994 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2995 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2996 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2997 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2998 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2999 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3000 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3001 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3002 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3003 octave_idx_type b_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3004 retval = SparseMatrix (nc, b_nc, b_nz); |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3005 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3006 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3007 octave_idx_type x_nz = b_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3008 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3009 if (typ == MatrixType::Permuted_Lower) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3010 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3011 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3012 octave_idx_type *perm = mattype.triangular_perm (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3013 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3014 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3015 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3016 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3017 work[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3018 for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3019 work[perm[b.ridx (i)]] = b.data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3020 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3021 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3022 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3023 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3024 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3025 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3026 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3027 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3028 for (octave_idx_type i = cidx (k); i < cidx (k+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3029 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3030 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3031 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3032 mini = i; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3033 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3034 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3035 if (minr != k || data (mini) == 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3036 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3037 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3038 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3039 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3040 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3041 double tmp = work[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3042 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3043 for (octave_idx_type i = cidx (k); i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3044 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3045 if (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3046 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3047 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3048 octave_idx_type iidx = perm[ridx (i)]; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3049 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3050 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3051 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3052 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3053 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3054 // Count non-zeros in work vector and adjust space in |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3055 // retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3056 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3057 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3058 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3059 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3060 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3061 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3062 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3063 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3064 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3065 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3066 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3067 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3068 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3069 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3070 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3071 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3072 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3073 retval.xdata (ii++) = work[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3074 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3075 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3076 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3077 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3078 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3079 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3080 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3081 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3082 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3083 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3084 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3085 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3086 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3087 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3088 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3089 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3090 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3091 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3092 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3093 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3094 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3095 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3096 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3097 for (octave_idx_type i = cidx (k); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3098 i < cidx (k+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3099 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3100 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3101 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3102 mini = i; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3103 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3104 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3105 double tmp = work[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3106 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3107 for (octave_idx_type i = cidx (k); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3108 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3109 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3110 if (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3111 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3112 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3113 octave_idx_type iidx = perm[ridx (i)]; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3114 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3115 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3116 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3117 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3118 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3119 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3120 for (octave_idx_type i = j; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3121 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3122 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3123 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3124 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3125 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3126 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3127 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3128 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3129 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3130 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3131 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3132 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3133 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3134 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3135 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3136 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3137 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3138 work[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3139 for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3140 work[b.ridx (i)] = b.data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3141 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3142 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3143 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3144 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3145 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3146 if (ridx (cidx (k)) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3147 data (cidx (k)) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3148 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3149 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3150 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3151 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3152 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3153 double tmp = work[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3154 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3155 for (octave_idx_type i = cidx (k)+1; i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3156 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3157 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3158 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3159 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3160 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3161 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3162 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3163 // Count non-zeros in work vector and adjust space in |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3164 // retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3165 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3166 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3167 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3168 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3169 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3170 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3171 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3172 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3173 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3174 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3175 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3176 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3177 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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changeset
|
3178 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3179 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3180 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3181 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
3182 retval.xdata (ii++) = work[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3183 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
3184 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3185 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3186 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3187 retval.maybe_compress (); |
|
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untabify liboctave C++ sources
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10158
diff
changeset
|
3188 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3189 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3190 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3191 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
3192 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3193 work[i] = 0.; |
|
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untabify liboctave C++ sources
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diff
changeset
|
3194 |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
3195 for (octave_idx_type j = 0; j < nr; j++) |
|
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untabify liboctave C++ sources
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diff
changeset
|
3196 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3197 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3198 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3199 for (octave_idx_type k = j; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3200 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3201 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3202 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3203 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
3204 double tmp = work[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3205 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
3206 for (octave_idx_type i = cidx (k)+1; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
3207 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3208 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
3209 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
3210 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3211 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
3212 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3213 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3214 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
3215 for (octave_idx_type i = j; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
3216 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
3217 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3218 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3219 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3220 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3221 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3222 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3223 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
3224 } |
|
07ebe522dac2
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10158
diff
changeset
|
3225 } |
|
07ebe522dac2
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diff
changeset
|
3226 |
|
07ebe522dac2
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diff
changeset
|
3227 triangular_error: |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3228 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3229 { |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
3230 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3231 { |
|
07ebe522dac2
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diff
changeset
|
3232 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3233 mattype.mark_as_rectangular (); |
|
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10158
diff
changeset
|
3234 } |
|
07ebe522dac2
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10158
diff
changeset
|
3235 else |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3236 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3237 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3238 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3239 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3240 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3241 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3242 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3243 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3244 { |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
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diff
changeset
|
3245 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3246 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3247 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3248 { |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
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diff
changeset
|
3249 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3250 mattype.mark_as_rectangular (); |
|
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untabify liboctave C++ sources
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10158
diff
changeset
|
3251 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3252 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3253 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3254 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3255 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
3256 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3257 } |
| 5164 | 3258 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3259 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 3260 } |
| 3261 | |
| 3262 return retval; | |
| 3263 } | |
| 3264 | |
| 3265 ComplexMatrix | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3266 SparseMatrix::ltsolve (MatrixType &mattype, const ComplexMatrix& b, |
|
12df7854fa7c
strip trailing whitespace from source files
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11574
diff
changeset
|
3267 octave_idx_type& err, double& rcond, |
|
10314
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diff
changeset
|
3268 solve_singularity_handler sing_handler, |
|
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3269 bool calc_cond) const |
| 5164 | 3270 { |
| 3271 ComplexMatrix retval; | |
| 3272 | |
| 5275 | 3273 octave_idx_type nr = rows (); |
| 3274 octave_idx_type nc = cols (); | |
| 5630 | 3275 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 3276 err = 0; |
| 3277 | |
| 6924 | 3278 if (nr != b.rows ()) |
| 5164 | 3279 (*current_liboctave_error_handler) |
| 3280 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 3281 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 3282 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0)); | |
| 5164 | 3283 else |
| 3284 { | |
| 3285 // Print spparms("spumoni") info if requested | |
| 3286 int typ = mattype.type (); | |
| 3287 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
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|
3288 |
| 5785 | 3289 if (typ == MatrixType::Permuted_Lower || |
|
10314
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diff
changeset
|
3290 typ == MatrixType::Lower) |
|
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diff
changeset
|
3291 { |
|
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diff
changeset
|
3292 double anorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
3293 double ainvnorm = 0.; |
|
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untabify liboctave C++ sources
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changeset
|
3294 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
3295 rcond = 1.; |
|
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diff
changeset
|
3296 |
|
07ebe522dac2
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changeset
|
3297 if (calc_cond) |
|
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changeset
|
3298 { |
|
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diff
changeset
|
3299 // Calculate the 1-norm of matrix for rcond calculation |
|
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untabify liboctave C++ sources
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changeset
|
3300 for (octave_idx_type j = 0; j < nc; j++) |
|
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changeset
|
3301 { |
|
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diff
changeset
|
3302 double atmp = 0.; |
|
15018
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Rik <rik@octave.org>
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changeset
|
3303 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
3d8ace26c5b4
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changeset
|
3304 atmp += fabs (data (i)); |
|
10314
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changeset
|
3305 if (atmp > anorm) |
|
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changeset
|
3306 anorm = atmp; |
|
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changeset
|
3307 } |
|
07ebe522dac2
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changeset
|
3308 } |
|
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changeset
|
3309 |
|
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changeset
|
3310 if (typ == MatrixType::Permuted_Lower) |
|
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changeset
|
3311 { |
|
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changeset
|
3312 retval.resize (nc, b_nc); |
|
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changeset
|
3313 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
3314 octave_idx_type *perm = mattype.triangular_perm (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3315 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3316 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3317 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3318 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3319 cwork[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3320 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3321 cwork[perm[i]] = b(i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3322 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3323 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3324 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3325 if (cwork[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3326 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3327 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3328 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3329 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3330 for (octave_idx_type i = cidx (k); i < cidx (k+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3331 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3332 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3333 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3334 mini = i; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3335 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3336 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3337 if (minr != k || data (mini) == 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3338 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3339 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3340 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3341 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3342 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3343 Complex tmp = cwork[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3344 cwork[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3345 for (octave_idx_type i = cidx (k); i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3346 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3347 if (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3348 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3349 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3350 octave_idx_type iidx = perm[ridx (i)]; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3351 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3352 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3353 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3354 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3355 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3356 for (octave_idx_type i = 0; i < nc; i++) |
|
14844
5bc9b9cb4362
maint: Use Octave coding conventions for cuddled parenthesis in retval assignments.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
3357 retval(i, j) = cwork[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3358 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3359 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3360 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3361 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3362 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3363 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3364 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3365 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3366 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3367 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3368 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3369 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3370 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3371 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3372 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3373 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3374 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3375 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3376 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3377 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3378 for (octave_idx_type i = cidx (k); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3379 i < cidx (k+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3380 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3381 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3382 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3383 mini = i; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3384 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3385 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3386 double tmp = work[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3387 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3388 for (octave_idx_type i = cidx (k); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3389 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3390 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3391 if (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3392 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3393 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3394 octave_idx_type iidx = perm[ridx (i)]; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3395 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3396 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3397 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3398 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3399 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3400 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3401 for (octave_idx_type i = j; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3402 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3403 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3404 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3405 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3406 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3407 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3408 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3409 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3410 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3411 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3412 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3413 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3414 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3415 retval.resize (nc, b_nc, 0.); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3416 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3417 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3418 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3419 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3420 cwork[i] = b(i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3421 for (octave_idx_type i = nr; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3422 cwork[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3423 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3424 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3425 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3426 if (cwork[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3427 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3428 if (ridx (cidx (k)) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3429 data (cidx (k)) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3430 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3431 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3432 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3433 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3434 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3435 Complex tmp = cwork[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3436 cwork[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3437 for (octave_idx_type i = cidx (k)+1; i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3438 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3439 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3440 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3441 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3442 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3443 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3444 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3445 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3446 retval.xelem (i, j) = cwork[i]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3447 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3448 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3449 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3450 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3451 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3452 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3453 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3454 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3455 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3456 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3457 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3458 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3459 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3460 for (octave_idx_type k = j; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3461 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3462 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3463 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3464 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3465 double tmp = work[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3466 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3467 for (octave_idx_type i = cidx (k)+1; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3468 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3469 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3470 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3471 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3472 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3473 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3474 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3475 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3476 for (octave_idx_type i = j; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3477 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3478 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3479 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3480 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3481 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3482 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3483 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3484 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3485 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3486 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3487 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3488 triangular_error: |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3489 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3490 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3491 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3492 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3493 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3494 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3495 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3496 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3497 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3498 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3499 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3500 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3501 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3502 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3503 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3504 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3505 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3506 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3507 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3508 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3509 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3510 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3511 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3512 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3513 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3514 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3515 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3516 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3517 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3518 } |
| 5164 | 3519 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3520 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 3521 } |
| 3522 | |
| 3523 return retval; | |
| 3524 } | |
| 3525 | |
| 3526 SparseComplexMatrix | |
| 5785 | 3527 SparseMatrix::ltsolve (MatrixType &mattype, const SparseComplexMatrix& b, |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3528 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3529 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3530 bool calc_cond) const |
| 5164 | 3531 { |
| 3532 SparseComplexMatrix retval; | |
| 3533 | |
| 5275 | 3534 octave_idx_type nr = rows (); |
| 3535 octave_idx_type nc = cols (); | |
| 5630 | 3536 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 3537 err = 0; |
| 3538 | |
| 6924 | 3539 if (nr != b.rows ()) |
| 5164 | 3540 (*current_liboctave_error_handler) |
| 3541 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 3542 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 3543 retval = SparseComplexMatrix (nc, b.cols ()); | |
| 5164 | 3544 else |
| 3545 { | |
| 3546 // Print spparms("spumoni") info if requested | |
| 3547 int typ = mattype.type (); | |
| 3548 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3549 |
| 5785 | 3550 if (typ == MatrixType::Permuted_Lower || |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3551 typ == MatrixType::Lower) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3552 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3553 double anorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3554 double ainvnorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3555 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3556 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3557 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3558 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3559 // Calculate the 1-norm of matrix for rcond calculation |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3560 for (octave_idx_type j = 0; j < nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3561 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3562 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3563 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3564 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3565 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3566 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3567 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3568 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3569 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3570 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3571 octave_idx_type b_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3572 retval = SparseComplexMatrix (nc, b_nc, b_nz); |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3573 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3574 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3575 octave_idx_type x_nz = b_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3576 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3577 if (typ == MatrixType::Permuted_Lower) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3578 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3579 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3580 octave_idx_type *perm = mattype.triangular_perm (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3581 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3582 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3583 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3584 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3585 cwork[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3586 for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3587 cwork[perm[b.ridx (i)]] = b.data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3588 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3589 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3590 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3591 if (cwork[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3592 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3593 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3594 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3595 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3596 for (octave_idx_type i = cidx (k); i < cidx (k+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3597 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3598 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3599 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3600 mini = i; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3601 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3602 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3603 if (minr != k || data (mini) == 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3604 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3605 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3606 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3607 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3608 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3609 Complex tmp = cwork[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3610 cwork[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3611 for (octave_idx_type i = cidx (k); i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3612 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3613 if (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3614 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3615 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3616 octave_idx_type iidx = perm[ridx (i)]; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3617 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3618 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3619 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3620 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3621 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3622 // Count non-zeros in work vector and adjust space in |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3623 // retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3624 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3625 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3626 if (cwork[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3627 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3628 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3629 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3630 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3631 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3632 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3633 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3634 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3635 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3636 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3637 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3638 if (cwork[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3639 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3640 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3641 retval.xdata (ii++) = cwork[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3642 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3643 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3644 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3645 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3646 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3647 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3648 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3649 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3650 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3651 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3652 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3653 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3654 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3655 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3656 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3657 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3658 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3659 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3660 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3661 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3662 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3663 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3664 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3665 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3666 for (octave_idx_type i = cidx (k); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3667 i < cidx (k+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3668 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3669 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3670 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3671 mini = i; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3672 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3673 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3674 double tmp = work[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3675 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3676 for (octave_idx_type i = cidx (k); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3677 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3678 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3679 if (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3680 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3681 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3682 octave_idx_type iidx = perm[ridx (i)]; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3683 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3684 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3685 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3686 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3687 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3688 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3689 for (octave_idx_type i = j; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3690 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3691 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3692 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3693 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3694 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3695 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3696 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3697 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3698 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3699 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3700 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3701 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3702 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3703 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3704 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3705 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3706 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3707 cwork[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3708 for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3709 cwork[b.ridx (i)] = b.data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3710 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3711 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3712 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3713 if (cwork[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3714 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3715 if (ridx (cidx (k)) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3716 data (cidx (k)) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3717 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3718 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3719 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3720 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3721 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3722 Complex tmp = cwork[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3723 cwork[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3724 for (octave_idx_type i = cidx (k)+1; i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3725 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3726 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3727 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3728 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3729 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3730 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3731 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3732 // Count non-zeros in work vector and adjust space in |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3733 // retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3734 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3735 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3736 if (cwork[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3737 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3738 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3739 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3740 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3741 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3742 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3743 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3744 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3745 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3746 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3747 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3748 if (cwork[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3749 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3750 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3751 retval.xdata (ii++) = cwork[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3752 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3753 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3754 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3755 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3756 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3757 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3758 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3759 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3760 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3761 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3762 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3763 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3764 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3765 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3766 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3767 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3768 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3769 for (octave_idx_type k = j; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3770 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3771 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3772 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3773 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3774 double tmp = work[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3775 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3776 for (octave_idx_type i = cidx (k)+1; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3777 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3778 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3779 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3780 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3781 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3782 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3783 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3784 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3785 for (octave_idx_type i = j; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3786 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3787 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3788 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3789 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3790 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3791 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3792 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3793 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3794 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3795 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3796 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3797 triangular_error: |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3798 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3799 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3800 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3801 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3802 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3803 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3804 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3805 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3806 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3807 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3808 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3809 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3810 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3811 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3812 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3813 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3814 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3815 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3816 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3817 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3818 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3819 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3820 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3821 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3822 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3823 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3824 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3825 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3826 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3827 } |
| 5164 | 3828 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3829 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 3830 } |
| 3831 | |
| 3832 return retval; | |
| 3833 } | |
| 3834 | |
| 3835 Matrix | |
| 5785 | 3836 SparseMatrix::trisolve (MatrixType &mattype, const Matrix& b, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3837 octave_idx_type& err, double& rcond, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3838 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3839 bool calc_cond) const |
| 5164 | 3840 { |
| 3841 Matrix retval; | |
| 3842 | |
| 5275 | 3843 octave_idx_type nr = rows (); |
| 3844 octave_idx_type nc = cols (); | |
| 5164 | 3845 err = 0; |
| 3846 | |
| 6924 | 3847 if (nr != nc || nr != b.rows ()) |
| 5164 | 3848 (*current_liboctave_error_handler) |
| 3849 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 3850 else if (nr == 0 || b.cols () == 0) |
| 3851 retval = Matrix (nc, b.cols (), 0.0); | |
| 5681 | 3852 else if (calc_cond) |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3853 (*current_liboctave_error_handler) |
| 5681 | 3854 ("calculation of condition number not implemented"); |
| 5164 | 3855 else |
| 3856 { | |
| 3857 // Print spparms("spumoni") info if requested | |
| 3858 volatile int typ = mattype.type (); | |
| 3859 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3860 |
| 5785 | 3861 if (typ == MatrixType::Tridiagonal_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3862 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3863 OCTAVE_LOCAL_BUFFER (double, D, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3864 OCTAVE_LOCAL_BUFFER (double, DL, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3865 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3866 if (mattype.is_dense ()) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3867 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3868 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3869 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3870 for (octave_idx_type j = 0; j < nc-1; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3871 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3872 D[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3873 DL[j] = data (ii); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3874 ii += 2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3875 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3876 D[nc-1] = data (ii); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3877 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3878 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3879 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3880 D[0] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3881 for (octave_idx_type i = 0; i < nr - 1; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3882 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3883 D[i+1] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3884 DL[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3885 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3886 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3887 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3888 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3889 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3890 if (ridx (i) == j) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3891 D[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3892 else if (ridx (i) == j + 1) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3893 DL[j] = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3894 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3895 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3896 |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
3897 octave_idx_type b_nc = b.cols (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3898 retval = b; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3899 double *result = retval.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3900 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3901 F77_XFCN (dptsv, DPTSV, (nr, b_nc, D, DL, result, |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
3902 b.rows (), err)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3903 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3904 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3905 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3906 err = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3907 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3908 typ = MatrixType::Tridiagonal; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3909 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3910 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3911 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3912 } |
| 5164 | 3913 |
| 5785 | 3914 if (typ == MatrixType::Tridiagonal) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3915 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3916 OCTAVE_LOCAL_BUFFER (double, DU, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3917 OCTAVE_LOCAL_BUFFER (double, D, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3918 OCTAVE_LOCAL_BUFFER (double, DL, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3919 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3920 if (mattype.is_dense ()) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3921 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3922 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3923 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3924 for (octave_idx_type j = 0; j < nc-1; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3925 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3926 D[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3927 DL[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3928 DU[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3929 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3930 D[nc-1] = data (ii); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3931 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3932 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3933 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3934 D[0] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3935 for (octave_idx_type i = 0; i < nr - 1; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3936 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3937 D[i+1] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3938 DL[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3939 DU[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3940 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3941 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3942 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3943 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3944 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3945 if (ridx (i) == j) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3946 D[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3947 else if (ridx (i) == j + 1) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3948 DL[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3949 else if (ridx (i) == j - 1) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3950 DU[j-1] = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3951 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3952 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3953 |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
3954 octave_idx_type b_nc = b.cols (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3955 retval = b; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3956 double *result = retval.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3957 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3958 F77_XFCN (dgtsv, DGTSV, (nr, b_nc, DL, D, DU, result, |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
3959 b.rows (), err)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3960 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3961 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3962 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3963 rcond = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3964 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3965 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3966 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3967 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3968 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3969 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3970 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3971 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3972 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3973 ("matrix singular to machine precision"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3974 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3975 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3976 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3977 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3978 } |
| 5785 | 3979 else if (typ != MatrixType::Tridiagonal_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3980 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 3981 } |
| 3982 | |
| 3983 return retval; | |
| 3984 } | |
| 3985 | |
| 3986 SparseMatrix | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3987 SparseMatrix::trisolve (MatrixType &mattype, const SparseMatrix& b, |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3988 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3989 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3990 bool calc_cond) const |
| 5164 | 3991 { |
| 3992 SparseMatrix retval; | |
| 3993 | |
| 5275 | 3994 octave_idx_type nr = rows (); |
| 3995 octave_idx_type nc = cols (); | |
| 5164 | 3996 err = 0; |
| 3997 | |
| 6924 | 3998 if (nr != nc || nr != b.rows ()) |
| 5164 | 3999 (*current_liboctave_error_handler) |
| 4000 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 4001 else if (nr == 0 || b.cols () == 0) |
| 4002 retval = SparseMatrix (nc, b.cols ()); | |
| 5681 | 4003 else if (calc_cond) |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4004 (*current_liboctave_error_handler) |
| 5681 | 4005 ("calculation of condition number not implemented"); |
| 5164 | 4006 else |
| 4007 { | |
| 4008 // Print spparms("spumoni") info if requested | |
| 4009 int typ = mattype.type (); | |
| 4010 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4011 |
| 5164 | 4012 // Note can't treat symmetric case as there is no dpttrf function |
| 5785 | 4013 if (typ == MatrixType::Tridiagonal || |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4014 typ == MatrixType::Tridiagonal_Hermitian) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4015 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4016 OCTAVE_LOCAL_BUFFER (double, DU2, nr - 2); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4017 OCTAVE_LOCAL_BUFFER (double, DU, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4018 OCTAVE_LOCAL_BUFFER (double, D, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4019 OCTAVE_LOCAL_BUFFER (double, DL, nr - 1); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4020 Array<octave_idx_type> ipvt (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4021 octave_idx_type *pipvt = ipvt.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4022 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4023 if (mattype.is_dense ()) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4024 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4025 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4026 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4027 for (octave_idx_type j = 0; j < nc-1; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4028 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4029 D[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4030 DL[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4031 DU[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4032 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4033 D[nc-1] = data (ii); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4034 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4035 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4036 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4037 D[0] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4038 for (octave_idx_type i = 0; i < nr - 1; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4039 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4040 D[i+1] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4041 DL[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4042 DU[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4043 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4044 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4045 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4046 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4047 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4048 if (ridx (i) == j) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4049 D[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4050 else if (ridx (i) == j + 1) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4051 DL[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4052 else if (ridx (i) == j - 1) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4053 DU[j-1] = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4054 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4055 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4056 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4057 F77_XFCN (dgttrf, DGTTRF, (nr, DL, D, DU, DU2, pipvt, err)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4058 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4059 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4060 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4061 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4062 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4063 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4064 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4065 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4066 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4067 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4068 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4069 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4070 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4071 ("matrix singular to machine precision"); |
|
07ebe522dac2
untabify liboctave C++ sources
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|
4072 |
|
11586
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|
4073 } |
|
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changeset
|
4074 else |
|
10314
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|
4075 { |
|
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|
4076 rcond = 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
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|
4077 char job = 'N'; |
|
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untabify liboctave C++ sources
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|
4078 volatile octave_idx_type x_nz = b.nnz (); |
|
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untabify liboctave C++ sources
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|
4079 octave_idx_type b_nc = b.cols (); |
|
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untabify liboctave C++ sources
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|
4080 retval = SparseMatrix (nr, b_nc, x_nz); |
|
15018
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maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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diff
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|
4081 retval.xcidx (0) = 0; |
|
10314
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|
4082 volatile octave_idx_type ii = 0; |
|
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untabify liboctave C++ sources
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|
4083 |
|
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|
4084 OCTAVE_LOCAL_BUFFER (double, work, nr); |
|
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untabify liboctave C++ sources
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diff
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|
4085 |
|
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changeset
|
4086 for (volatile octave_idx_type j = 0; j < b_nc; j++) |
|
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untabify liboctave C++ sources
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|
4087 { |
|
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changeset
|
4088 for (octave_idx_type i = 0; i < nr; i++) |
|
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untabify liboctave C++ sources
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changeset
|
4089 work[i] = 0.; |
|
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maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
4090 for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
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diff
changeset
|
4091 work[b.ridx (i)] = b.data (i); |
|
10314
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|
4092 |
|
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|
4093 F77_XFCN (dgttrs, DGTTRS, |
|
10314
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|
4094 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
11586
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|
4095 nr, 1, DL, D, DU, DU2, pipvt, |
|
10314
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|
4096 work, b.rows (), err |
|
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|
4097 F77_CHAR_ARG_LEN (1))); |
|
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untabify liboctave C++ sources
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|
4098 |
|
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|
4099 // Count non-zeros in work vector and adjust |
|
10314
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|
4100 // space in retval if needed |
|
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|
4101 octave_idx_type new_nnz = 0; |
|
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untabify liboctave C++ sources
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|
4102 for (octave_idx_type i = 0; i < nr; i++) |
|
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untabify liboctave C++ sources
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diff
changeset
|
4103 if (work[i] != 0.) |
|
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untabify liboctave C++ sources
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changeset
|
4104 new_nnz++; |
|
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untabify liboctave C++ sources
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diff
changeset
|
4105 |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
4106 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4107 { |
|
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diff
changeset
|
4108 // Resize the sparse matrix |
|
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diff
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|
4109 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
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|
4110 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4111 x_nz = sz; |
|
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untabify liboctave C++ sources
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diff
changeset
|
4112 } |
|
07ebe522dac2
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diff
changeset
|
4113 |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
4114 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
4115 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4116 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4117 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4118 retval.xdata (ii++) = work[i]; |
|
10314
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diff
changeset
|
4119 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4120 retval.xcidx (j+1) = ii; |
|
10314
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diff
changeset
|
4121 } |
|
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diff
changeset
|
4122 |
|
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untabify liboctave C++ sources
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diff
changeset
|
4123 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4124 } |
|
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untabify liboctave C++ sources
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diff
changeset
|
4125 } |
| 5785 | 4126 else if (typ != MatrixType::Tridiagonal_Hermitian) |
|
10314
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diff
changeset
|
4127 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 4128 } |
| 4129 | |
| 4130 return retval; | |
| 4131 } | |
| 4132 | |
| 4133 ComplexMatrix | |
|
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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changeset
|
4134 SparseMatrix::trisolve (MatrixType &mattype, const ComplexMatrix& b, |
|
12df7854fa7c
strip trailing whitespace from source files
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|
4135 octave_idx_type& err, double& rcond, |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
4136 solve_singularity_handler sing_handler, |
|
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untabify liboctave C++ sources
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diff
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|
4137 bool calc_cond) const |
| 5164 | 4138 { |
| 4139 ComplexMatrix retval; | |
| 4140 | |
| 5275 | 4141 octave_idx_type nr = rows (); |
| 4142 octave_idx_type nc = cols (); | |
| 5164 | 4143 err = 0; |
| 4144 | |
| 6924 | 4145 if (nr != nc || nr != b.rows ()) |
| 5164 | 4146 (*current_liboctave_error_handler) |
| 4147 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 4148 else if (nr == 0 || b.cols () == 0) |
| 4149 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0)); | |
| 5681 | 4150 else if (calc_cond) |
|
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
4151 (*current_liboctave_error_handler) |
| 5681 | 4152 ("calculation of condition number not implemented"); |
| 5164 | 4153 else |
| 4154 { | |
| 4155 // Print spparms("spumoni") info if requested | |
| 4156 volatile int typ = mattype.type (); | |
| 4157 mattype.info (); | |
|
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4158 |
| 5785 | 4159 if (typ == MatrixType::Tridiagonal_Hermitian) |
|
10314
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diff
changeset
|
4160 { |
|
07ebe522dac2
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diff
changeset
|
4161 OCTAVE_LOCAL_BUFFER (double, D, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4162 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4163 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4164 if (mattype.is_dense ()) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4165 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4166 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4167 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4168 for (octave_idx_type j = 0; j < nc-1; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4169 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4170 D[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4171 DL[j] = data (ii); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4172 ii += 2; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4173 } |
|
15018
3d8ace26c5b4
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Rik <rik@octave.org>
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14846
diff
changeset
|
4174 D[nc-1] = data (ii); |
|
10314
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diff
changeset
|
4175 } |
|
07ebe522dac2
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diff
changeset
|
4176 else |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4177 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4178 D[0] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
4179 for (octave_idx_type i = 0; i < nr - 1; i++) |
|
07ebe522dac2
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diff
changeset
|
4180 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4181 D[i+1] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4182 DL[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4183 } |
|
07ebe522dac2
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diff
changeset
|
4184 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4185 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
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Rik <rik@octave.org>
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diff
changeset
|
4186 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
10314
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untabify liboctave C++ sources
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changeset
|
4187 { |
|
15018
3d8ace26c5b4
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Rik <rik@octave.org>
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diff
changeset
|
4188 if (ridx (i) == j) |
|
3d8ace26c5b4
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14846
diff
changeset
|
4189 D[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
4190 else if (ridx (i) == j + 1) |
|
3d8ace26c5b4
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Rik <rik@octave.org>
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14846
diff
changeset
|
4191 DL[j] = data (i); |
|
10314
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changeset
|
4192 } |
|
07ebe522dac2
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diff
changeset
|
4193 } |
|
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changeset
|
4194 |
|
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changeset
|
4195 octave_idx_type b_nr = b.rows (); |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
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14844
diff
changeset
|
4196 octave_idx_type b_nc = b.cols (); |
|
10314
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changeset
|
4197 rcond = 1.; |
|
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changeset
|
4198 |
|
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changeset
|
4199 retval = b; |
|
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untabify liboctave C++ sources
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changeset
|
4200 Complex *result = retval.fortran_vec (); |
|
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|
4201 |
|
12df7854fa7c
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changeset
|
4202 F77_XFCN (zptsv, ZPTSV, (nr, b_nc, D, DL, result, |
|
10314
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untabify liboctave C++ sources
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|
4203 b_nr, err)); |
|
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changeset
|
4204 |
|
07ebe522dac2
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changeset
|
4205 if (err != 0) |
|
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changeset
|
4206 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4207 err = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4208 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4209 typ = MatrixType::Tridiagonal; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4210 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4211 } |
| 5164 | 4212 |
| 5785 | 4213 if (typ == MatrixType::Tridiagonal) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4214 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4215 OCTAVE_LOCAL_BUFFER (Complex, DU, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4216 OCTAVE_LOCAL_BUFFER (Complex, D, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4217 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4218 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4219 if (mattype.is_dense ()) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4220 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4221 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4222 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4223 for (octave_idx_type j = 0; j < nc-1; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4224 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4225 D[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4226 DL[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4227 DU[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4228 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4229 D[nc-1] = data (ii); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4230 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4231 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4232 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4233 D[0] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4234 for (octave_idx_type i = 0; i < nr - 1; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4235 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4236 D[i+1] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4237 DL[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4238 DU[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4239 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4240 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4241 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4242 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4243 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4244 if (ridx (i) == j) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4245 D[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4246 else if (ridx (i) == j + 1) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4247 DL[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4248 else if (ridx (i) == j - 1) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4249 DU[j-1] = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4250 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4251 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4252 |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
4253 octave_idx_type b_nr = b.rows (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
4254 octave_idx_type b_nc = b.cols (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4255 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4256 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4257 retval = b; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4258 Complex *result = retval.fortran_vec (); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4259 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4260 F77_XFCN (zgtsv, ZGTSV, (nr, b_nc, DL, D, DU, result, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4261 b_nr, err)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4262 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4263 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4264 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4265 rcond = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4266 err = -2; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4267 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4268 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4269 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4270 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4271 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4272 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4273 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4274 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4275 ("matrix singular to machine precision"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4276 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4277 } |
| 5785 | 4278 else if (typ != MatrixType::Tridiagonal_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4279 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 4280 } |
| 4281 | |
| 4282 return retval; | |
| 4283 } | |
| 4284 | |
| 4285 SparseComplexMatrix | |
| 5785 | 4286 SparseMatrix::trisolve (MatrixType &mattype, const SparseComplexMatrix& b, |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4287 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4288 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4289 bool calc_cond) const |
| 5164 | 4290 { |
| 4291 SparseComplexMatrix retval; | |
| 4292 | |
| 5275 | 4293 octave_idx_type nr = rows (); |
| 4294 octave_idx_type nc = cols (); | |
| 5164 | 4295 err = 0; |
| 4296 | |
| 6924 | 4297 if (nr != nc || nr != b.rows ()) |
| 5164 | 4298 (*current_liboctave_error_handler) |
| 4299 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 4300 else if (nr == 0 || b.cols () == 0) |
| 4301 retval = SparseComplexMatrix (nc, b.cols ()); | |
| 5681 | 4302 else if (calc_cond) |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4303 (*current_liboctave_error_handler) |
| 5681 | 4304 ("calculation of condition number not implemented"); |
| 5164 | 4305 else |
| 4306 { | |
| 4307 // Print spparms("spumoni") info if requested | |
| 4308 int typ = mattype.type (); | |
| 4309 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4310 |
| 5164 | 4311 // Note can't treat symmetric case as there is no dpttrf function |
| 5785 | 4312 if (typ == MatrixType::Tridiagonal || |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4313 typ == MatrixType::Tridiagonal_Hermitian) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4314 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4315 OCTAVE_LOCAL_BUFFER (double, DU2, nr - 2); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4316 OCTAVE_LOCAL_BUFFER (double, DU, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4317 OCTAVE_LOCAL_BUFFER (double, D, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4318 OCTAVE_LOCAL_BUFFER (double, DL, nr - 1); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4319 Array<octave_idx_type> ipvt (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4320 octave_idx_type *pipvt = ipvt.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4321 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4322 if (mattype.is_dense ()) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4323 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4324 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4325 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4326 for (octave_idx_type j = 0; j < nc-1; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4327 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4328 D[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4329 DL[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4330 DU[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4331 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4332 D[nc-1] = data (ii); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4333 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4334 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4335 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4336 D[0] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4337 for (octave_idx_type i = 0; i < nr - 1; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4338 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4339 D[i+1] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4340 DL[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4341 DU[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4342 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4343 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4344 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4345 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4346 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4347 if (ridx (i) == j) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4348 D[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4349 else if (ridx (i) == j + 1) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4350 DL[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4351 else if (ridx (i) == j - 1) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4352 DU[j-1] = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4353 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4354 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4355 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4356 F77_XFCN (dgttrf, DGTTRF, (nr, DL, D, DU, DU2, pipvt, err)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4357 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4358 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4359 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4360 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4361 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4362 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4363 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4364 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4365 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4366 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4367 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4368 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4369 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4370 ("matrix singular to machine precision"); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4371 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4372 else |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4373 { |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4374 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4375 char job = 'N'; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4376 octave_idx_type b_nr = b.rows (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4377 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4378 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4379 OCTAVE_LOCAL_BUFFER (double, Bz, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4380 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4381 // Take a first guess that the number of non-zero terms |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4382 // will be as many as in b |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4383 volatile octave_idx_type x_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4384 volatile octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4385 retval = SparseComplexMatrix (b_nr, b_nc, x_nz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4386 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4387 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4388 for (volatile octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4389 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4390 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4391 for (octave_idx_type i = 0; i < b_nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4392 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4393 Complex c = b (i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4394 Bx[i] = std::real (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4395 Bz[i] = std::imag (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4396 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4397 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4398 F77_XFCN (dgttrs, DGTTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4399 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4400 nr, 1, DL, D, DU, DU2, pipvt, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4401 Bx, b_nr, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4402 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4403 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4404 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4405 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4406 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4407 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4408 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4409 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4410 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4411 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4412 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4413 F77_XFCN (dgttrs, DGTTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4414 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4415 nr, 1, DL, D, DU, DU2, pipvt, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4416 Bz, b_nr, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4417 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4418 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4419 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4420 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4421 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4422 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4423 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4424 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4425 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4426 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4427 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4428 // Count non-zeros in work vector and adjust |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4429 // space in retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4430 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4431 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4432 if (Bx[i] != 0. || Bz[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4433 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4434 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4435 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4436 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4437 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4438 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4439 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4440 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4441 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4442 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4443 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4444 if (Bx[i] != 0. || Bz[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4445 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4446 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4447 retval.xdata (ii++) = |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4448 Complex (Bx[i], Bz[i]); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4449 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4450 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4451 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4452 } |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4453 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4454 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4455 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4456 } |
| 5785 | 4457 else if (typ != MatrixType::Tridiagonal_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4458 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 4459 } |
| 4460 | |
| 4461 return retval; | |
| 4462 } | |
| 4463 | |
| 4464 Matrix | |
| 5785 | 4465 SparseMatrix::bsolve (MatrixType &mattype, const Matrix& b, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4466 octave_idx_type& err, double& rcond, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4467 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4468 bool calc_cond) const |
| 5164 | 4469 { |
| 4470 Matrix retval; | |
| 4471 | |
| 5275 | 4472 octave_idx_type nr = rows (); |
| 4473 octave_idx_type nc = cols (); | |
| 5164 | 4474 err = 0; |
| 4475 | |
| 6924 | 4476 if (nr != nc || nr != b.rows ()) |
| 5164 | 4477 (*current_liboctave_error_handler) |
| 4478 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 4479 else if (nr == 0 || b.cols () == 0) |
| 4480 retval = Matrix (nc, b.cols (), 0.0); | |
| 5164 | 4481 else |
| 4482 { | |
| 4483 // Print spparms("spumoni") info if requested | |
| 4484 volatile int typ = mattype.type (); | |
| 4485 mattype.info (); | |
| 4486 | |
| 5785 | 4487 if (typ == MatrixType::Banded_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4488 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4489 octave_idx_type n_lower = mattype.nlower (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4490 octave_idx_type ldm = n_lower + 1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4491 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4492 double *tmp_data = m_band.fortran_vec (); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4493 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4494 if (! mattype.is_dense ()) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4495 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4496 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4497 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4498 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4499 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4500 tmp_data[ii++] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4501 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4502 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4503 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4504 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4505 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4506 octave_idx_type ri = ridx (i); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4507 if (ri >= j) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4508 m_band(ri - j, j) = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4509 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4510 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4511 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4512 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4513 if (calc_cond) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4514 anorm = m_band.abs ().sum ().row (0).max (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4515 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4516 char job = 'L'; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4517 F77_XFCN (dpbtrf, DPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4518 nr, n_lower, tmp_data, ldm, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4519 F77_CHAR_ARG_LEN (1))); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4520 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4521 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4522 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4523 // Matrix is not positive definite!! Fall through to |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4524 // unsymmetric banded solver. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4525 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4526 typ = MatrixType::Banded; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4527 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4528 err = 0; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4529 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4530 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4531 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4532 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4533 { |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4534 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4535 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4536 Array<octave_idx_type> iz (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4537 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4538 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4539 F77_XFCN (dpbcon, DPBCON, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4540 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4541 nr, n_lower, tmp_data, ldm, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4542 anorm, rcond, pz, piz, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4543 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4544 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4545 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4546 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4547 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4548 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4549 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4550 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4551 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4552 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4553 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4554 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4555 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4556 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4557 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4558 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4559 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4560 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4561 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4562 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4563 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4564 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4565 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4566 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4567 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4568 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4569 { |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4570 retval = b; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4571 double *result = retval.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4572 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4573 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4574 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4575 F77_XFCN (dpbtrs, DPBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4576 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4577 nr, n_lower, b_nc, tmp_data, |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
4578 ldm, result, b.rows (), err |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4579 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4580 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4581 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4582 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4583 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4584 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4585 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4586 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4587 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4588 } |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4589 } |
| 5164 | 4590 |
| 5785 | 4591 if (typ == MatrixType::Banded) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4592 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4593 // Create the storage for the banded form of the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4594 octave_idx_type n_upper = mattype.nupper (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4595 octave_idx_type n_lower = mattype.nlower (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4596 octave_idx_type ldm = n_upper + 2 * n_lower + 1; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4597 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4598 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4599 double *tmp_data = m_band.fortran_vec (); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4600 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4601 if (! mattype.is_dense ()) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4602 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4603 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4604 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4605 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4606 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4607 tmp_data[ii++] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4608 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4609 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4610 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4611 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4612 m_band(ridx (i) - j + n_lower + n_upper, j) = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4613 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4614 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4615 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4616 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4617 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4618 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4619 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4620 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4621 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4622 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4623 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4624 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4625 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4626 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4627 |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4628 Array<octave_idx_type> ipvt (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4629 octave_idx_type *pipvt = ipvt.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4630 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4631 F77_XFCN (dgbtrf, DGBTRF, (nr, nr, n_lower, n_upper, tmp_data, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4632 ldm, pipvt, err)); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4633 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4634 // Throw-away extra info LAPACK gives so as to not |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4635 // change output. |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4636 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4637 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4638 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4639 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4640 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4641 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4642 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4643 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4644 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4645 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4646 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4647 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4648 ("matrix singular to machine precision"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4649 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4650 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4651 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4652 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4653 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4654 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4655 char job = '1'; |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4656 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4657 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4658 Array<octave_idx_type> iz (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4659 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4660 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4661 F77_XFCN (dgbcon, DGBCON, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4662 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4663 nc, n_lower, n_upper, tmp_data, ldm, pipvt, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4664 anorm, rcond, pz, piz, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4665 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4666 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4667 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4668 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4669 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4670 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4671 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4672 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4673 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4674 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4675 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4676 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4677 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4678 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4679 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4680 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4681 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4682 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4683 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4684 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4685 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4686 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4687 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4688 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4689 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4690 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4691 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4692 retval = b; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4693 double *result = retval.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4694 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4695 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4696 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4697 char job = 'N'; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4698 F77_XFCN (dgbtrs, DGBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4699 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4700 nr, n_lower, n_upper, b_nc, tmp_data, |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
4701 ldm, pipvt, result, b.rows (), err |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4702 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4703 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4704 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4705 } |
| 5785 | 4706 else if (typ != MatrixType::Banded_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4707 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 4708 } |
| 4709 | |
| 4710 return retval; | |
| 4711 } | |
| 4712 | |
| 4713 SparseMatrix | |
| 5785 | 4714 SparseMatrix::bsolve (MatrixType &mattype, const SparseMatrix& b, |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
4715 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4716 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4717 bool calc_cond) const |
| 5164 | 4718 { |
| 4719 SparseMatrix retval; | |
| 4720 | |
| 5275 | 4721 octave_idx_type nr = rows (); |
| 4722 octave_idx_type nc = cols (); | |
| 5164 | 4723 err = 0; |
| 4724 | |
| 6924 | 4725 if (nr != nc || nr != b.rows ()) |
| 5164 | 4726 (*current_liboctave_error_handler) |
| 4727 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 4728 else if (nr == 0 || b.cols () == 0) |
| 4729 retval = SparseMatrix (nc, b.cols ()); | |
| 5164 | 4730 else |
| 4731 { | |
| 4732 // Print spparms("spumoni") info if requested | |
| 4733 volatile int typ = mattype.type (); | |
| 4734 mattype.info (); | |
| 4735 | |
| 5785 | 4736 if (typ == MatrixType::Banded_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4737 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4738 octave_idx_type n_lower = mattype.nlower (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4739 octave_idx_type ldm = n_lower + 1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4740 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4741 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4742 double *tmp_data = m_band.fortran_vec (); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4743 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4744 if (! mattype.is_dense ()) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4745 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4746 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4747 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4748 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4749 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4750 tmp_data[ii++] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4751 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4752 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4753 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4754 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4755 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4756 octave_idx_type ri = ridx (i); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4757 if (ri >= j) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4758 m_band(ri - j, j) = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4759 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4760 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4761 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4762 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4763 if (calc_cond) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4764 anorm = m_band.abs ().sum ().row (0).max (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4765 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4766 char job = 'L'; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4767 F77_XFCN (dpbtrf, DPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4768 nr, n_lower, tmp_data, ldm, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4769 F77_CHAR_ARG_LEN (1))); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4770 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4771 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4772 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4773 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4774 typ = MatrixType::Banded; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4775 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4776 err = 0; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4777 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4778 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4779 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4780 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4781 { |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4782 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4783 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4784 Array<octave_idx_type> iz (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4785 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4786 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4787 F77_XFCN (dpbcon, DPBCON, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4788 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4789 nr, n_lower, tmp_data, ldm, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4790 anorm, rcond, pz, piz, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4791 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4792 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4793 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4794 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4795 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4796 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4797 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4798 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4799 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4800 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4801 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4802 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4803 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4804 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4805 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4806 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4807 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4808 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4809 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4810 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4811 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4812 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4813 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4814 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4815 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4816 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4817 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4818 octave_idx_type b_nr = b.rows (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4819 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4820 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4821 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4822 // Take a first guess that the number of non-zero terms |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4823 // will be as many as in b |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4824 volatile octave_idx_type x_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4825 volatile octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4826 retval = SparseMatrix (b_nr, b_nc, x_nz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4827 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4828 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4829 for (volatile octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4830 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4831 for (octave_idx_type i = 0; i < b_nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4832 Bx[i] = b.elem (i, j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4833 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4834 F77_XFCN (dpbtrs, DPBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4835 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4836 nr, n_lower, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4837 ldm, Bx, b_nr, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4838 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4839 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4840 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4841 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4842 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4843 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4844 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4845 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4846 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4847 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4848 for (octave_idx_type i = 0; i < b_nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4849 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4850 double tmp = Bx[i]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4851 if (tmp != 0.0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4852 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4853 if (ii == x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4854 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4855 // Resize the sparse matrix |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4856 octave_idx_type sz = x_nz * |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4857 (b_nc - j) / b_nc; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4858 sz = (sz > 10 ? sz : 10) + x_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4859 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4860 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4861 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4862 retval.xdata (ii) = tmp; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4863 retval.xridx (ii++) = i; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4864 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4865 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4866 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4867 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4868 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4869 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4870 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4871 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4872 } |
| 5164 | 4873 |
| 5785 | 4874 if (typ == MatrixType::Banded) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4875 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4876 // Create the storage for the banded form of the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4877 octave_idx_type n_upper = mattype.nupper (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4878 octave_idx_type n_lower = mattype.nlower (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4879 octave_idx_type ldm = n_upper + 2 * n_lower + 1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4880 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4881 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4882 double *tmp_data = m_band.fortran_vec (); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4883 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4884 if (! mattype.is_dense ()) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4885 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4886 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4887 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4888 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4889 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4890 tmp_data[ii++] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4891 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4892 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4893 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4894 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4895 m_band(ridx (i) - j + n_lower + n_upper, j) = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4896 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4897 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4898 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4899 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4900 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4901 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4902 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4903 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4904 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4905 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4906 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4907 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4908 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4909 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4910 |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4911 Array<octave_idx_type> ipvt (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4912 octave_idx_type *pipvt = ipvt.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4913 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4914 F77_XFCN (dgbtrf, DGBTRF, (nr, nr, n_lower, n_upper, tmp_data, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4915 ldm, pipvt, err)); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4916 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4917 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4918 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4919 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4920 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4921 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4922 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4923 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4924 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4925 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4926 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4927 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4928 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4929 ("matrix singular to machine precision"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4930 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4931 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4932 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4933 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4934 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4935 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4936 char job = '1'; |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4937 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4938 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4939 Array<octave_idx_type> iz (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4940 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4941 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4942 F77_XFCN (dgbcon, DGBCON, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4943 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4944 nc, n_lower, n_upper, tmp_data, ldm, pipvt, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4945 anorm, rcond, pz, piz, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4946 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4947 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4948 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4949 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4950 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4951 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4952 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4953 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4954 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4955 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4956 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4957 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4958 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4959 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4960 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4961 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4962 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4963 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4964 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4965 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4966 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4967 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4968 else |
|
07ebe522dac2
untabify liboctave C++ sources
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|
4969 rcond = 1.; |
|
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|
4970 |
|
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|
4971 if (err == 0) |
|
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untabify liboctave C++ sources
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diff
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|
4972 { |
|
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|
4973 char job = 'N'; |
|
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untabify liboctave C++ sources
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diff
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|
4974 volatile octave_idx_type x_nz = b.nnz (); |
|
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untabify liboctave C++ sources
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|
4975 octave_idx_type b_nc = b.cols (); |
|
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untabify liboctave C++ sources
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|
4976 retval = SparseMatrix (nr, b_nc, x_nz); |
|
15018
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maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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diff
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|
4977 retval.xcidx (0) = 0; |
|
10314
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|
4978 volatile octave_idx_type ii = 0; |
|
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|
4979 |
|
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|
4980 OCTAVE_LOCAL_BUFFER (double, work, nr); |
|
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untabify liboctave C++ sources
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|
4981 |
|
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changeset
|
4982 for (volatile octave_idx_type j = 0; j < b_nc; j++) |
|
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untabify liboctave C++ sources
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diff
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|
4983 { |
|
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changeset
|
4984 for (octave_idx_type i = 0; i < nr; i++) |
|
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untabify liboctave C++ sources
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changeset
|
4985 work[i] = 0.; |
|
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diff
changeset
|
4986 for (octave_idx_type i = b.cidx (j); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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diff
changeset
|
4987 i < b.cidx (j+1); i++) |
|
3d8ace26c5b4
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Rik <rik@octave.org>
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diff
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|
4988 work[b.ridx (i)] = b.data (i); |
|
10314
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|
4989 |
|
11586
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|
4990 F77_XFCN (dgbtrs, DGBTRS, |
|
10314
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|
4991 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
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|
4992 nr, n_lower, n_upper, 1, tmp_data, |
|
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|
4993 ldm, pipvt, work, b.rows (), err |
|
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untabify liboctave C++ sources
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|
4994 F77_CHAR_ARG_LEN (1))); |
|
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untabify liboctave C++ sources
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|
4995 |
|
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|
4996 // Count non-zeros in work vector and adjust |
|
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|
4997 // space in retval if needed |
|
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|
4998 octave_idx_type new_nnz = 0; |
|
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|
4999 for (octave_idx_type i = 0; i < nr; i++) |
|
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|
5000 if (work[i] != 0.) |
|
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changeset
|
5001 new_nnz++; |
|
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|
5002 |
|
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changeset
|
5003 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
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|
5004 { |
|
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changeset
|
5005 // Resize the sparse matrix |
|
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|
5006 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
|
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untabify liboctave C++ sources
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|
5007 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
5008 x_nz = sz; |
|
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changeset
|
5009 } |
|
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diff
changeset
|
5010 |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
5011 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5012 if (work[i] != 0.) |
|
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untabify liboctave C++ sources
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diff
changeset
|
5013 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5014 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5015 retval.xdata (ii++) = work[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5016 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5017 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
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diff
changeset
|
5018 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5019 |
|
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untabify liboctave C++ sources
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diff
changeset
|
5020 retval.maybe_compress (); |
|
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diff
changeset
|
5021 } |
|
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diff
changeset
|
5022 } |
|
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diff
changeset
|
5023 } |
| 5785 | 5024 else if (typ != MatrixType::Banded_Hermitian) |
|
10314
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changeset
|
5025 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 5026 } |
| 5027 | |
| 5028 return retval; | |
| 5029 } | |
| 5030 | |
| 5031 ComplexMatrix | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
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|
5032 SparseMatrix::bsolve (MatrixType &mattype, const ComplexMatrix& b, |
|
12df7854fa7c
strip trailing whitespace from source files
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|
5033 octave_idx_type& err, double& rcond, |
|
10314
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changeset
|
5034 solve_singularity_handler sing_handler, |
|
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untabify liboctave C++ sources
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parents:
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diff
changeset
|
5035 bool calc_cond) const |
| 5164 | 5036 { |
| 5037 ComplexMatrix retval; | |
| 5038 | |
| 5275 | 5039 octave_idx_type nr = rows (); |
| 5040 octave_idx_type nc = cols (); | |
| 5164 | 5041 err = 0; |
| 5042 | |
| 6924 | 5043 if (nr != nc || nr != b.rows ()) |
| 5164 | 5044 (*current_liboctave_error_handler) |
| 5045 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 5046 else if (nr == 0 || b.cols () == 0) |
| 5047 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0)); | |
| 5164 | 5048 else |
| 5049 { | |
| 5050 // Print spparms("spumoni") info if requested | |
| 5051 volatile int typ = mattype.type (); | |
| 5052 mattype.info (); | |
| 5053 | |
| 5785 | 5054 if (typ == MatrixType::Banded_Hermitian) |
|
10314
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diff
changeset
|
5055 { |
|
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diff
changeset
|
5056 octave_idx_type n_lower = mattype.nlower (); |
|
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untabify liboctave C++ sources
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diff
changeset
|
5057 octave_idx_type ldm = n_lower + 1; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5058 |
|
07ebe522dac2
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diff
changeset
|
5059 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
5060 double *tmp_data = m_band.fortran_vec (); |
|
11586
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diff
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|
5061 |
|
12df7854fa7c
strip trailing whitespace from source files
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diff
changeset
|
5062 if (! mattype.is_dense ()) |
|
10314
07ebe522dac2
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parents:
10158
diff
changeset
|
5063 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5064 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5065 |
|
07ebe522dac2
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diff
changeset
|
5066 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
5067 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5068 tmp_data[ii++] = 0.; |
|
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diff
changeset
|
5069 } |
|
07ebe522dac2
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diff
changeset
|
5070 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5071 for (octave_idx_type j = 0; j < nc; j++) |
|
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Rik <rik@octave.org>
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diff
changeset
|
5072 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
10314
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|
5073 { |
|
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changeset
|
5074 octave_idx_type ri = ridx (i); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5075 if (ri >= j) |
|
15018
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Rik <rik@octave.org>
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changeset
|
5076 m_band(ri - j, j) = data (i); |
|
10314
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diff
changeset
|
5077 } |
|
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changeset
|
5078 |
|
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changeset
|
5079 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
5080 double anorm; |
|
07ebe522dac2
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diff
changeset
|
5081 if (calc_cond) |
|
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diff
changeset
|
5082 anorm = m_band.abs ().sum ().row (0).max (); |
|
10314
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|
5083 |
|
07ebe522dac2
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changeset
|
5084 char job = 'L'; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5085 F77_XFCN (dpbtrf, DPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1), |
|
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untabify liboctave C++ sources
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changeset
|
5086 nr, n_lower, tmp_data, ldm, err |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
5087 F77_CHAR_ARG_LEN (1))); |
|
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changeset
|
5088 |
|
12df7854fa7c
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changeset
|
5089 if (err != 0) |
|
10314
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changeset
|
5090 { |
|
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changeset
|
5091 // Matrix is not positive definite!! Fall through to |
|
07ebe522dac2
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changeset
|
5092 // unsymmetric banded solver. |
|
07ebe522dac2
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changeset
|
5093 mattype.mark_as_unsymmetric (); |
|
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untabify liboctave C++ sources
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changeset
|
5094 typ = MatrixType::Banded; |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
5095 rcond = 0.0; |
|
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changeset
|
5096 err = 0; |
|
11586
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changeset
|
5097 } |
|
12df7854fa7c
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changeset
|
5098 else |
|
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changeset
|
5099 { |
|
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changeset
|
5100 if (calc_cond) |
|
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changeset
|
5101 { |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
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11523
diff
changeset
|
5102 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
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changeset
|
5103 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5104 Array<octave_idx_type> iz (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5105 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5106 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5107 F77_XFCN (dpbcon, DPBCON, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5108 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5109 nr, n_lower, tmp_data, ldm, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5110 anorm, rcond, pz, piz, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5111 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5112 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5113 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5114 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5115 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5116 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5117 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5118 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5119 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5120 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5121 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5122 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5123 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5124 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5125 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5126 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5127 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5128 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5129 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5130 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5131 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5132 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5133 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5134 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5135 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5136 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5137 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5138 octave_idx_type b_nr = b.rows (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5139 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5140 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5141 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5142 OCTAVE_LOCAL_BUFFER (double, Bz, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5143 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5144 retval.resize (b_nr, b_nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5145 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5146 for (volatile octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5147 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5148 for (octave_idx_type i = 0; i < b_nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5149 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5150 Complex c = b (i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5151 Bx[i] = std::real (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5152 Bz[i] = std::imag (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5153 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5154 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5155 F77_XFCN (dpbtrs, DPBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5156 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5157 nr, n_lower, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5158 ldm, Bx, b_nr, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5159 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5160 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5161 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5162 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5163 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5164 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5165 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5166 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5167 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5168 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5169 F77_XFCN (dpbtrs, DPBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5170 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5171 nr, n_lower, 1, tmp_data, |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5172 ldm, Bz, b.rows (), err |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5173 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5174 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5175 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5176 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5177 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5178 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5179 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5180 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5181 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5182 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5183 for (octave_idx_type i = 0; i < b_nr; i++) |
|
14844
5bc9b9cb4362
maint: Use Octave coding conventions for cuddled parenthesis in retval assignments.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
5184 retval(i, j) = Complex (Bx[i], Bz[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5185 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5186 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5187 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5188 } |
| 5164 | 5189 |
| 5785 | 5190 if (typ == MatrixType::Banded) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5191 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5192 // Create the storage for the banded form of the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5193 octave_idx_type n_upper = mattype.nupper (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5194 octave_idx_type n_lower = mattype.nlower (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5195 octave_idx_type ldm = n_upper + 2 * n_lower + 1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5196 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5197 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5198 double *tmp_data = m_band.fortran_vec (); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5199 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5200 if (! mattype.is_dense ()) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5201 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5202 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5203 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5204 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5205 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5206 tmp_data[ii++] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5207 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5208 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5209 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5210 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5211 m_band(ridx (i) - j + n_lower + n_upper, j) = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5212 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5213 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5214 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5215 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5216 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5217 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5218 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5219 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5220 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5221 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5222 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5223 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5224 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5225 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5226 |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5227 Array<octave_idx_type> ipvt (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5228 octave_idx_type *pipvt = ipvt.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5229 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5230 F77_XFCN (dgbtrf, DGBTRF, (nr, nr, n_lower, n_upper, tmp_data, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5231 ldm, pipvt, err)); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5232 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5233 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5234 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5235 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5236 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5237 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5238 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5239 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5240 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5241 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5242 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5243 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5244 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5245 ("matrix singular to machine precision"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5246 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5247 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5248 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5249 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5250 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5251 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5252 char job = '1'; |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5253 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5254 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5255 Array<octave_idx_type> iz (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5256 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5257 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5258 F77_XFCN (dpbcon, DPBCON, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5259 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5260 nr, n_lower, tmp_data, ldm, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5261 anorm, rcond, pz, piz, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5262 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5263 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5264 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5265 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5266 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5267 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5268 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5269 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5270 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5271 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5272 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5273 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5274 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5275 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5276 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5277 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5278 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5279 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5280 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5281 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5282 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5283 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5284 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5285 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5286 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5287 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5288 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5289 char job = 'N'; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5290 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5291 retval.resize (nr,b_nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5292 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5293 OCTAVE_LOCAL_BUFFER (double, Bz, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5294 OCTAVE_LOCAL_BUFFER (double, Bx, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5295 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5296 for (volatile octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5297 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5298 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5299 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5300 Complex c = b (i, j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5301 Bx[i] = std::real (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5302 Bz[i] = std::imag (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5303 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5304 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5305 F77_XFCN (dgbtrs, DGBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5306 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5307 nr, n_lower, n_upper, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5308 ldm, pipvt, Bx, b.rows (), err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5309 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5310 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5311 F77_XFCN (dgbtrs, DGBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5312 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5313 nr, n_lower, n_upper, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5314 ldm, pipvt, Bz, b.rows (), err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5315 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5316 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5317 for (octave_idx_type i = 0; i < nr; i++) |
|
14844
5bc9b9cb4362
maint: Use Octave coding conventions for cuddled parenthesis in retval assignments.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
5318 retval(i, j) = Complex (Bx[i], Bz[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5319 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5320 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5321 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5322 } |
| 5785 | 5323 else if (typ != MatrixType::Banded_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5324 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 5325 } |
| 5326 | |
| 5327 return retval; | |
| 5328 } | |
| 5329 | |
| 5330 SparseComplexMatrix | |
| 5785 | 5331 SparseMatrix::bsolve (MatrixType &mattype, const SparseComplexMatrix& b, |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5332 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5333 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5334 bool calc_cond) const |
| 5164 | 5335 { |
| 5336 SparseComplexMatrix retval; | |
| 5337 | |
| 5275 | 5338 octave_idx_type nr = rows (); |
| 5339 octave_idx_type nc = cols (); | |
| 5164 | 5340 err = 0; |
| 5341 | |
| 6924 | 5342 if (nr != nc || nr != b.rows ()) |
| 5164 | 5343 (*current_liboctave_error_handler) |
| 5344 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 5345 else if (nr == 0 || b.cols () == 0) |
| 5346 retval = SparseComplexMatrix (nc, b.cols ()); | |
| 5164 | 5347 else |
| 5348 { | |
| 5349 // Print spparms("spumoni") info if requested | |
| 5350 volatile int typ = mattype.type (); | |
| 5351 mattype.info (); | |
| 5352 | |
| 5785 | 5353 if (typ == MatrixType::Banded_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5354 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5355 octave_idx_type n_lower = mattype.nlower (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5356 octave_idx_type ldm = n_lower + 1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5357 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5358 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5359 double *tmp_data = m_band.fortran_vec (); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5360 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5361 if (! mattype.is_dense ()) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5362 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5363 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5364 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5365 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5366 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5367 tmp_data[ii++] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5368 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5369 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5370 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5371 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5372 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5373 octave_idx_type ri = ridx (i); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5374 if (ri >= j) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5375 m_band(ri - j, j) = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5376 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5377 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5378 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5379 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5380 if (calc_cond) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5381 anorm = m_band.abs ().sum ().row (0).max (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5382 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5383 char job = 'L'; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5384 F77_XFCN (dpbtrf, DPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5385 nr, n_lower, tmp_data, ldm, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5386 F77_CHAR_ARG_LEN (1))); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5387 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5388 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5389 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5390 // Matrix is not positive definite!! Fall through to |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5391 // unsymmetric banded solver. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5392 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5393 typ = MatrixType::Banded; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5394 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5395 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5396 err = 0; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5397 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5398 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5399 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5400 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5401 { |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5402 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5403 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5404 Array<octave_idx_type> iz (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5405 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5406 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5407 F77_XFCN (dpbcon, DPBCON, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5408 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5409 nr, n_lower, tmp_data, ldm, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5410 anorm, rcond, pz, piz, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5411 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5412 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5413 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5414 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5415 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5416 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5417 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5418 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5419 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5420 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5421 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5422 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5423 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5424 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5425 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5426 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5427 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5428 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5429 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5430 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5431 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5432 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5433 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5434 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5435 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5436 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5437 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5438 octave_idx_type b_nr = b.rows (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5439 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5440 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5441 OCTAVE_LOCAL_BUFFER (double, Bz, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5442 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5443 // Take a first guess that the number of non-zero terms |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5444 // will be as many as in b |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5445 volatile octave_idx_type x_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5446 volatile octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5447 retval = SparseComplexMatrix (b_nr, b_nc, x_nz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5448 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5449 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5450 for (volatile octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5451 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5452 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5453 for (octave_idx_type i = 0; i < b_nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5454 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5455 Complex c = b (i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5456 Bx[i] = std::real (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5457 Bz[i] = std::imag (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5458 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5459 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5460 F77_XFCN (dpbtrs, DPBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5461 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5462 nr, n_lower, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5463 ldm, Bx, b_nr, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5464 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5465 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5466 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5467 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5468 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5469 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5470 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5471 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5472 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5473 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5474 F77_XFCN (dpbtrs, DPBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5475 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5476 nr, n_lower, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5477 ldm, Bz, b_nr, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5478 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5479 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5480 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5481 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5482 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5483 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5484 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5485 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5486 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5487 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5488 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5489 // Count non-zeros in work vector and adjust |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5490 // space in retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5491 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5492 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5493 if (Bx[i] != 0. || Bz[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5494 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5495 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5496 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5497 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5498 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5499 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5500 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5501 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5502 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5503 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5504 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5505 if (Bx[i] != 0. || Bz[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5506 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5507 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5508 retval.xdata (ii++) = |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5509 Complex (Bx[i], Bz[i]); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5510 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5511 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5512 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5513 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5514 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5515 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5516 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5517 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5518 } |
| 5164 | 5519 |
| 5785 | 5520 if (typ == MatrixType::Banded) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5521 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5522 // Create the storage for the banded form of the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5523 octave_idx_type n_upper = mattype.nupper (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5524 octave_idx_type n_lower = mattype.nlower (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5525 octave_idx_type ldm = n_upper + 2 * n_lower + 1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5526 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5527 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5528 double *tmp_data = m_band.fortran_vec (); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5529 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5530 if (! mattype.is_dense ()) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5531 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5532 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5533 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5534 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5535 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5536 tmp_data[ii++] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5537 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5538 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5539 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5540 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5541 m_band(ridx (i) - j + n_lower + n_upper, j) = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5542 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5543 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5544 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5545 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5546 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5547 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5548 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5549 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5550 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5551 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5552 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5553 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5554 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5555 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5556 |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5557 Array<octave_idx_type> ipvt (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5558 octave_idx_type *pipvt = ipvt.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5559 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5560 F77_XFCN (dgbtrf, DGBTRF, (nr, nr, n_lower, n_upper, tmp_data, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5561 ldm, pipvt, err)); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5562 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5563 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5564 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5565 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5566 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5567 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5568 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5569 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5570 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5571 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5572 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5573 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5574 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5575 ("matrix singular to machine precision"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5576 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5577 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5578 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5579 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5580 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5581 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5582 char job = '1'; |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5583 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5584 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5585 Array<octave_idx_type> iz (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5586 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5587 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5588 F77_XFCN (dgbcon, DGBCON, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5589 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5590 nc, n_lower, n_upper, tmp_data, ldm, pipvt, |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5591 anorm, rcond, pz, piz, err |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5592 F77_CHAR_ARG_LEN (1))); |
|
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5593 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
5594 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5595 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5596 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5597 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5598 |
|
07ebe522dac2
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diff
changeset
|
5599 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5600 { |
|
07ebe522dac2
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diff
changeset
|
5601 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5602 |
|
07ebe522dac2
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diff
changeset
|
5603 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5604 { |
|
07ebe522dac2
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diff
changeset
|
5605 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5606 mattype.mark_as_rectangular (); |
|
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untabify liboctave C++ sources
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diff
changeset
|
5607 } |
|
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diff
changeset
|
5608 else |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5609 (*current_liboctave_error_handler) |
|
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untabify liboctave C++ sources
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diff
changeset
|
5610 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5611 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5612 } |
|
07ebe522dac2
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diff
changeset
|
5613 } |
|
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untabify liboctave C++ sources
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diff
changeset
|
5614 else |
|
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5615 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5616 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5617 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5618 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5619 char job = 'N'; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5620 volatile octave_idx_type x_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
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|
5621 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5622 retval = SparseComplexMatrix (nr, b_nc, x_nz); |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5623 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5624 volatile octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5625 |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
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diff
changeset
|
5626 OCTAVE_LOCAL_BUFFER (double, Bx, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5627 OCTAVE_LOCAL_BUFFER (double, Bz, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5628 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5629 for (volatile octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5630 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
5631 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5632 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5633 Bx[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5634 Bz[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5635 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5636 for (octave_idx_type i = b.cidx (j); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5637 i < b.cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5638 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5639 Complex c = b.data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5640 Bx[b.ridx (i)] = std::real (c); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5641 Bz[b.ridx (i)] = std::imag (c); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5642 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5643 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
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11574
diff
changeset
|
5644 F77_XFCN (dgbtrs, DGBTRS, |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
5645 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5646 nr, n_lower, n_upper, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5647 ldm, pipvt, Bx, b.rows (), err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5648 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5649 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
5650 F77_XFCN (dgbtrs, DGBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5651 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5652 nr, n_lower, n_upper, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5653 ldm, pipvt, Bz, b.rows (), err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5654 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5655 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5656 // Count non-zeros in work vector and adjust |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5657 // space in retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5658 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5659 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5660 if (Bx[i] != 0. || Bz[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5661 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
5662 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5663 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5664 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5665 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5666 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5667 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5668 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5669 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5670 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5671 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5672 if (Bx[i] != 0. || Bz[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5673 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5674 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5675 retval.xdata (ii++) = |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
5676 Complex (Bx[i], Bz[i]); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
5677 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5678 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
5679 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5680 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5681 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5682 } |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
5683 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5684 } |
| 5785 | 5685 else if (typ != MatrixType::Banded_Hermitian) |
|
10314
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untabify liboctave C++ sources
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10158
diff
changeset
|
5686 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 5687 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
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11574
diff
changeset
|
5688 |
| 5164 | 5689 return retval; |
| 5690 } | |
| 5691 | |
| 5692 void * | |
| 5681 | 5693 SparseMatrix::factorize (octave_idx_type& err, double &rcond, Matrix &Control, |
|
10314
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untabify liboctave C++ sources
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changeset
|
5694 Matrix &Info, solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5695 bool calc_cond) const |
| 5164 | 5696 { |
| 5697 // The return values | |
| 5404 | 5698 void *Numeric = 0; |
| 5164 | 5699 err = 0; |
| 5700 | |
| 5203 | 5701 #ifdef HAVE_UMFPACK |
| 5164 | 5702 // Setup the control parameters |
| 5703 Control = Matrix (UMFPACK_CONTROL, 1); | |
| 5704 double *control = Control.fortran_vec (); | |
| 5322 | 5705 UMFPACK_DNAME (defaults) (control); |
| 5164 | 5706 |
| 5893 | 5707 double tmp = octave_sparse_params::get_key ("spumoni"); |
| 5164 | 5708 if (!xisnan (tmp)) |
| 5709 Control (UMFPACK_PRL) = tmp; | |
| 5893 | 5710 tmp = octave_sparse_params::get_key ("piv_tol"); |
| 5164 | 5711 if (!xisnan (tmp)) |
| 5712 { | |
| 5713 Control (UMFPACK_SYM_PIVOT_TOLERANCE) = tmp; | |
| 5714 Control (UMFPACK_PIVOT_TOLERANCE) = tmp; | |
| 5715 } | |
| 5716 | |
| 5717 // Set whether we are allowed to modify Q or not | |
| 5893 | 5718 tmp = octave_sparse_params::get_key ("autoamd"); |
| 5164 | 5719 if (!xisnan (tmp)) |
| 5720 Control (UMFPACK_FIXQ) = tmp; | |
| 5721 | |
| 5322 | 5722 UMFPACK_DNAME (report_control) (control); |
| 5164 | 5723 |
| 5275 | 5724 const octave_idx_type *Ap = cidx (); |
| 5725 const octave_idx_type *Ai = ridx (); | |
| 5164 | 5726 const double *Ax = data (); |
| 5275 | 5727 octave_idx_type nr = rows (); |
| 5728 octave_idx_type nc = cols (); | |
| 5164 | 5729 |
| 5322 | 5730 UMFPACK_DNAME (report_matrix) (nr, nc, Ap, Ai, Ax, 1, control); |
| 5164 | 5731 |
| 5732 void *Symbolic; | |
| 5733 Info = Matrix (1, UMFPACK_INFO); | |
| 5734 double *info = Info.fortran_vec (); | |
| 7520 | 5735 int status = UMFPACK_DNAME (qsymbolic) (nr, nc, Ap, Ai, Ax, 0, |
|
10314
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diff
changeset
|
5736 &Symbolic, control, info); |
| 5164 | 5737 |
| 5738 if (status < 0) | |
| 5739 { | |
|
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strip trailing whitespace from source files
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changeset
|
5740 (*current_liboctave_error_handler) |
|
10314
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diff
changeset
|
5741 ("SparseMatrix::solve symbolic factorization failed"); |
| 5164 | 5742 err = -1; |
| 5743 | |
| 5322 | 5744 UMFPACK_DNAME (report_status) (control, status); |
| 5745 UMFPACK_DNAME (report_info) (control, info); | |
| 5746 | |
| 5747 UMFPACK_DNAME (free_symbolic) (&Symbolic) ; | |
| 5164 | 5748 } |
| 5749 else | |
| 5750 { | |
| 5322 | 5751 UMFPACK_DNAME (report_symbolic) (Symbolic, control); |
| 5752 | |
| 5753 status = UMFPACK_DNAME (numeric) (Ap, Ai, Ax, Symbolic, | |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5754 &Numeric, control, info) ; |
| 5322 | 5755 UMFPACK_DNAME (free_symbolic) (&Symbolic) ; |
| 5164 | 5756 |
| 5681 | 5757 if (calc_cond) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5758 rcond = Info (UMFPACK_RCOND); |
| 5681 | 5759 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5760 rcond = 1.; |
| 5164 | 5761 volatile double rcond_plus_one = rcond + 1.0; |
| 5762 | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5763 if (status == UMFPACK_WARNING_singular_matrix || |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5764 rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5765 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5766 UMFPACK_DNAME (report_numeric) (Numeric, control); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5767 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5768 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5769 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5770 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5771 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5772 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5773 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5774 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5775 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5776 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5777 } |
| 5610 | 5778 else if (status < 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5779 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5780 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5781 ("SparseMatrix::solve numeric factorization failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5782 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5783 UMFPACK_DNAME (report_status) (control, status); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5784 UMFPACK_DNAME (report_info) (control, info); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5785 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5786 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5787 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5788 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5789 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5790 UMFPACK_DNAME (report_numeric) (Numeric, control); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5791 } |
| 5164 | 5792 } |
| 5793 | |
| 5794 if (err != 0) | |
| 5322 | 5795 UMFPACK_DNAME (free_numeric) (&Numeric); |
| 5164 | 5796 |
| 5203 | 5797 #else |
| 5798 (*current_liboctave_error_handler) ("UMFPACK not installed"); | |
| 5799 #endif | |
| 5800 | |
| 5164 | 5801 return Numeric; |
| 5802 } | |
| 5803 | |
| 5804 Matrix | |
| 5785 | 5805 SparseMatrix::fsolve (MatrixType &mattype, const Matrix& b, |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5806 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5807 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5808 bool calc_cond) const |
| 5164 | 5809 { |
| 5810 Matrix retval; | |
| 5811 | |
| 5275 | 5812 octave_idx_type nr = rows (); |
| 5813 octave_idx_type nc = cols (); | |
| 5164 | 5814 err = 0; |
| 5815 | |
| 6924 | 5816 if (nr != nc || nr != b.rows ()) |
| 5164 | 5817 (*current_liboctave_error_handler) |
| 5818 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 5819 else if (nr == 0 || b.cols () == 0) |
| 5820 retval = Matrix (nc, b.cols (), 0.0); | |
| 5164 | 5821 else |
| 5822 { | |
| 5823 // Print spparms("spumoni") info if requested | |
| 5506 | 5824 volatile int typ = mattype.type (); |
| 5164 | 5825 mattype.info (); |
| 5826 | |
| 5785 | 5827 if (typ == MatrixType::Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5828 { |
| 5506 | 5829 #ifdef HAVE_CHOLMOD |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5830 cholmod_common Common; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5831 cholmod_common *cm = &Common; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5832 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5833 // Setup initial parameters |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5834 CHOLMOD_NAME(start) (cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5835 cm->prefer_zomplex = false; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5836 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5837 double spu = octave_sparse_params::get_key ("spumoni"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5838 if (spu == 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5839 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5840 cm->print = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5841 cm->print_function = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5842 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5843 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5844 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5845 cm->print = static_cast<int> (spu) + 2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5846 cm->print_function =&SparseCholPrint; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5847 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5848 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5849 cm->error_handler = &SparseCholError; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5850 cm->complex_divide = CHOLMOD_NAME(divcomplex); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5851 cm->hypotenuse = CHOLMOD_NAME(hypot); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5852 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5853 cm->final_ll = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5854 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5855 cholmod_sparse Astore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5856 cholmod_sparse *A = &Astore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5857 double dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5858 A->nrow = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5859 A->ncol = nc; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5860 |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5861 A->p = cidx (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5862 A->i = ridx (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5863 A->nzmax = nnz (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5864 A->packed = true; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5865 A->sorted = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5866 A->nz = 0; |
|
16313
6aafe87a3144
use int64_t for idx type if --enable-64
John W. Eaton <jwe@octave.org>
parents:
15271
diff
changeset
|
5867 #ifdef USE_64_BIT_IDX_T |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5868 A->itype = CHOLMOD_LONG; |
| 5506 | 5869 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5870 A->itype = CHOLMOD_INT; |
| 5506 | 5871 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5872 A->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5873 A->stype = 1; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5874 A->xtype = CHOLMOD_REAL; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5875 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5876 if (nr < 1) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5877 A->x = &dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5878 else |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5879 A->x = data (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5880 |
|
07ebe522dac2
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10158
diff
changeset
|
5881 cholmod_dense Bstore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5882 cholmod_dense *B = &Bstore; |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5883 B->nrow = b.rows (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5884 B->ncol = b.cols (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5885 B->d = B->nrow; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5886 B->nzmax = B->nrow * B->ncol; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5887 B->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5888 B->xtype = CHOLMOD_REAL; |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5889 if (nc < 1 || b.cols () < 1) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5890 B->x = &dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5891 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5892 // We won't alter it, honest :-) |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5893 B->x = const_cast<double *>(b.fortran_vec ()); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5894 |
|
07ebe522dac2
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10158
diff
changeset
|
5895 cholmod_factor *L; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5896 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5897 L = CHOLMOD_NAME(analyze) (A, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5898 CHOLMOD_NAME(factorize) (A, L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5899 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5900 rcond = CHOLMOD_NAME(rcond)(L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5901 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5902 rcond = 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5903 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5904 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5905 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5906 if (rcond == 0.0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5907 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5908 // Either its indefinite or singular. Try UMFPACK |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5909 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5910 typ = MatrixType::Full; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5911 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5912 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5913 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5914 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5915 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5916 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5917 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5918 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5919 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5920 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5921 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5922 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5923 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5924 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5925 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5926 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5927 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5928 rcond); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5929 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5930 return retval; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5931 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5932 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5933 cholmod_dense *X; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5934 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5935 X = CHOLMOD_NAME(solve) (CHOLMOD_A, L, B, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5936 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5937 |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5938 retval.resize (b.rows (), b.cols ()); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5939 for (octave_idx_type j = 0; j < b.cols (); j++) |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5940 { |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5941 octave_idx_type jr = j * b.rows (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5942 for (octave_idx_type i = 0; i < b.rows (); i++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5943 retval.xelem (i,j) = static_cast<double *>(X->x)[jr + i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5944 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5945 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5946 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5947 CHOLMOD_NAME(free_dense) (&X, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5948 CHOLMOD_NAME(free_factor) (&L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5949 CHOLMOD_NAME(finish) (cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5950 static char tmp[] = " "; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5951 CHOLMOD_NAME(print_common) (tmp, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5952 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5953 } |
| 5506 | 5954 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5955 (*current_liboctave_warning_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5956 ("CHOLMOD not installed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5957 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5958 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5959 typ = MatrixType::Full; |
| 5506 | 5960 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5961 } |
| 5164 | 5962 |
| 5785 | 5963 if (typ == MatrixType::Full) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5964 { |
| 5203 | 5965 #ifdef HAVE_UMFPACK |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5966 Matrix Control, Info; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5967 void *Numeric = |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5968 factorize (err, rcond, Control, Info, sing_handler, calc_cond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5969 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5970 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5971 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5972 const double *Bx = b.fortran_vec (); |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
5973 retval.resize (b.rows (), b.cols ()); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5974 double *result = retval.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5975 octave_idx_type b_nr = b.rows (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5976 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5977 int status = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5978 double *control = Control.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5979 double *info = Info.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5980 const octave_idx_type *Ap = cidx (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5981 const octave_idx_type *Ai = ridx (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5982 const double *Ax = data (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5983 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5984 for (octave_idx_type j = 0, iidx = 0; j < b_nc; j++, iidx += b_nr) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5985 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5986 status = UMFPACK_DNAME (solve) (UMFPACK_A, Ap, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5987 Ai, Ax, &result[iidx], &Bx[iidx], |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5988 Numeric, control, info); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5989 if (status < 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5990 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5991 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5992 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5993 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5994 UMFPACK_DNAME (report_status) (control, status); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5995 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5996 err = -1; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5997 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5998 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5999 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6000 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6001 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6002 UMFPACK_DNAME (report_info) (control, info); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6003 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6004 UMFPACK_DNAME (free_numeric) (&Numeric); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6005 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6006 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6007 mattype.mark_as_rectangular (); |
| 5681 | 6008 |
| 5203 | 6009 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6010 (*current_liboctave_error_handler) ("UMFPACK not installed"); |
| 5203 | 6011 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6012 } |
| 5785 | 6013 else if (typ != MatrixType::Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6014 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 6015 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6016 |
| 5164 | 6017 return retval; |
| 6018 } | |
| 6019 | |
| 6020 SparseMatrix | |
| 5785 | 6021 SparseMatrix::fsolve (MatrixType &mattype, const SparseMatrix& b, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6022 octave_idx_type& err, double& rcond, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6023 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6024 bool calc_cond) const |
| 5164 | 6025 { |
| 6026 SparseMatrix retval; | |
| 6027 | |
| 5275 | 6028 octave_idx_type nr = rows (); |
| 6029 octave_idx_type nc = cols (); | |
| 5164 | 6030 err = 0; |
| 6031 | |
| 6924 | 6032 if (nr != nc || nr != b.rows ()) |
| 5164 | 6033 (*current_liboctave_error_handler) |
| 6034 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 6035 else if (nr == 0 || b.cols () == 0) |
| 6036 retval = SparseMatrix (nc, b.cols ()); | |
| 5164 | 6037 else |
| 6038 { | |
| 6039 // Print spparms("spumoni") info if requested | |
| 5506 | 6040 volatile int typ = mattype.type (); |
| 5164 | 6041 mattype.info (); |
| 6042 | |
| 5785 | 6043 if (typ == MatrixType::Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6044 { |
| 5506 | 6045 #ifdef HAVE_CHOLMOD |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6046 cholmod_common Common; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6047 cholmod_common *cm = &Common; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6048 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6049 // Setup initial parameters |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6050 CHOLMOD_NAME(start) (cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6051 cm->prefer_zomplex = false; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6052 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6053 double spu = octave_sparse_params::get_key ("spumoni"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6054 if (spu == 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6055 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6056 cm->print = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6057 cm->print_function = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6058 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6059 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6060 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6061 cm->print = static_cast<int> (spu) + 2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6062 cm->print_function =&SparseCholPrint; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6063 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6064 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6065 cm->error_handler = &SparseCholError; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6066 cm->complex_divide = CHOLMOD_NAME(divcomplex); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6067 cm->hypotenuse = CHOLMOD_NAME(hypot); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6068 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6069 cm->final_ll = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6070 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6071 cholmod_sparse Astore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6072 cholmod_sparse *A = &Astore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6073 double dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6074 A->nrow = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6075 A->ncol = nc; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6076 |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6077 A->p = cidx (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6078 A->i = ridx (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6079 A->nzmax = nnz (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6080 A->packed = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6081 A->sorted = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6082 A->nz = 0; |
|
16313
6aafe87a3144
use int64_t for idx type if --enable-64
John W. Eaton <jwe@octave.org>
parents:
15271
diff
changeset
|
6083 #ifdef USE_64_BIT_IDX_T |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6084 A->itype = CHOLMOD_LONG; |
| 5506 | 6085 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6086 A->itype = CHOLMOD_INT; |
| 5506 | 6087 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6088 A->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6089 A->stype = 1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6090 A->xtype = CHOLMOD_REAL; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6091 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6092 if (nr < 1) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6093 A->x = &dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6094 else |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6095 A->x = data (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6096 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6097 cholmod_sparse Bstore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6098 cholmod_sparse *B = &Bstore; |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6099 B->nrow = b.rows (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6100 B->ncol = b.cols (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6101 B->p = b.cidx (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6102 B->i = b.ridx (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6103 B->nzmax = b.nnz (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6104 B->packed = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6105 B->sorted = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6106 B->nz = 0; |
|
16313
6aafe87a3144
use int64_t for idx type if --enable-64
John W. Eaton <jwe@octave.org>
parents:
15271
diff
changeset
|
6107 #ifdef USE_64_BIT_IDX_T |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6108 B->itype = CHOLMOD_LONG; |
| 5506 | 6109 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6110 B->itype = CHOLMOD_INT; |
| 5506 | 6111 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6112 B->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6113 B->stype = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6114 B->xtype = CHOLMOD_REAL; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6115 |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6116 if (b.rows () < 1 || b.cols () < 1) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6117 B->x = &dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6118 else |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6119 B->x = b.data (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6120 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6121 cholmod_factor *L; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6122 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6123 L = CHOLMOD_NAME(analyze) (A, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6124 CHOLMOD_NAME(factorize) (A, L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6125 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6126 rcond = CHOLMOD_NAME(rcond)(L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6127 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6128 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6129 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6130 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6131 if (rcond == 0.0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6132 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6133 // Either its indefinite or singular. Try UMFPACK |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6134 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6135 typ = MatrixType::Full; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6136 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6137 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6138 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6139 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6140 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6141 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6142 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6143 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6144 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6145 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6146 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6147 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6148 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6149 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6150 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6151 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6152 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6153 rcond); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6154 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6155 return retval; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6156 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6157 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6158 cholmod_sparse *X; |
|
07ebe522dac2
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|
6159 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
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|
6160 X = CHOLMOD_NAME(spsolve) (CHOLMOD_A, L, B, cm); |
|
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|
6161 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
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|
6162 |
|
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|
6163 retval = SparseMatrix (static_cast<octave_idx_type>(X->nrow), |
|
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|
6164 static_cast<octave_idx_type>(X->ncol), |
|
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|
6165 static_cast<octave_idx_type>(X->nzmax)); |
|
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|
6166 for (octave_idx_type j = 0; |
|
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|
6167 j <= static_cast<octave_idx_type>(X->ncol); j++) |
|
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Rik <rik@octave.org>
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|
6168 retval.xcidx (j) = static_cast<octave_idx_type *>(X->p)[j]; |
|
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|
6169 for (octave_idx_type j = 0; |
|
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|
6170 j < static_cast<octave_idx_type>(X->nzmax); j++) |
|
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|
6171 { |
|
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|
6172 retval.xridx (j) = static_cast<octave_idx_type *>(X->i)[j]; |
|
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Rik <rik@octave.org>
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|
6173 retval.xdata (j) = static_cast<double *>(X->x)[j]; |
|
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|
6174 } |
|
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changeset
|
6175 |
|
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|
6176 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
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|
6177 CHOLMOD_NAME(free_sparse) (&X, cm); |
|
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|
6178 CHOLMOD_NAME(free_factor) (&L, cm); |
|
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|
6179 CHOLMOD_NAME(finish) (cm); |
|
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|
6180 static char tmp[] = " "; |
|
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|
6181 CHOLMOD_NAME(print_common) (tmp, cm); |
|
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|
6182 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
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|
6183 } |
| 5506 | 6184 #else |
|
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|
6185 (*current_liboctave_warning_handler) |
|
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changeset
|
6186 ("CHOLMOD not installed"); |
|
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changeset
|
6187 |
|
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changeset
|
6188 mattype.mark_as_unsymmetric (); |
|
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|
6189 typ = MatrixType::Full; |
| 5506 | 6190 #endif |
|
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|
6191 } |
| 5164 | 6192 |
| 5785 | 6193 if (typ == MatrixType::Full) |
|
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|
6194 { |
| 5203 | 6195 #ifdef HAVE_UMFPACK |
|
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|
6196 Matrix Control, Info; |
|
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|
6197 void *Numeric = factorize (err, rcond, Control, Info, |
|
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|
6198 sing_handler, calc_cond); |
|
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|
6199 |
|
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changeset
|
6200 if (err == 0) |
|
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diff
changeset
|
6201 { |
|
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diff
changeset
|
6202 octave_idx_type b_nr = b.rows (); |
|
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untabify liboctave C++ sources
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|
6203 octave_idx_type b_nc = b.cols (); |
|
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changeset
|
6204 int status = 0; |
|
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|
6205 double *control = Control.fortran_vec (); |
|
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untabify liboctave C++ sources
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|
6206 double *info = Info.fortran_vec (); |
|
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|
6207 const octave_idx_type *Ap = cidx (); |
|
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|
6208 const octave_idx_type *Ai = ridx (); |
|
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|
6209 const double *Ax = data (); |
|
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|
6210 |
|
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changeset
|
6211 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr); |
|
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changeset
|
6212 OCTAVE_LOCAL_BUFFER (double, Xx, b_nr); |
|
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|
6213 |
|
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changeset
|
6214 // Take a first guess that the number of non-zero terms |
|
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|
6215 // will be as many as in b |
|
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|
6216 octave_idx_type x_nz = b.nnz (); |
|
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|
6217 octave_idx_type ii = 0; |
|
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|
6218 retval = SparseMatrix (b_nr, b_nc, x_nz); |
|
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|
6219 |
|
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maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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changeset
|
6220 retval.xcidx (0) = 0; |
|
10314
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changeset
|
6221 for (octave_idx_type j = 0; j < b_nc; j++) |
|
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changeset
|
6222 { |
|
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diff
changeset
|
6223 |
|
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changeset
|
6224 for (octave_idx_type i = 0; i < b_nr; i++) |
|
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untabify liboctave C++ sources
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changeset
|
6225 Bx[i] = b.elem (i, j); |
|
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changeset
|
6226 |
|
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changeset
|
6227 status = UMFPACK_DNAME (solve) (UMFPACK_A, Ap, |
|
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strip trailing whitespace from source files
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|
6228 Ai, Ax, Xx, Bx, Numeric, control, |
|
10314
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diff
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|
6229 info); |
|
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changeset
|
6230 if (status < 0) |
|
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|
6231 { |
|
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diff
changeset
|
6232 (*current_liboctave_error_handler) |
|
10314
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changeset
|
6233 ("SparseMatrix::solve solve failed"); |
|
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changeset
|
6234 |
|
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changeset
|
6235 UMFPACK_DNAME (report_status) (control, status); |
|
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|
6236 |
|
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changeset
|
6237 err = -1; |
|
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changeset
|
6238 |
|
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diff
changeset
|
6239 break; |
|
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changeset
|
6240 } |
|
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changeset
|
6241 |
|
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changeset
|
6242 for (octave_idx_type i = 0; i < b_nr; i++) |
|
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changeset
|
6243 { |
|
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changeset
|
6244 double tmp = Xx[i]; |
|
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changeset
|
6245 if (tmp != 0.0) |
|
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changeset
|
6246 { |
|
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changeset
|
6247 if (ii == x_nz) |
|
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changeset
|
6248 { |
|
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changeset
|
6249 // Resize the sparse matrix |
|
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changeset
|
6250 octave_idx_type sz = x_nz * (b_nc - j) / b_nc; |
|
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|
6251 sz = (sz > 10 ? sz : 10) + x_nz; |
|
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changeset
|
6252 retval.change_capacity (sz); |
|
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changeset
|
6253 x_nz = sz; |
|
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changeset
|
6254 } |
|
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changeset
|
6255 retval.xdata (ii) = tmp; |
|
3d8ace26c5b4
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changeset
|
6256 retval.xridx (ii++) = i; |
|
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changeset
|
6257 } |
|
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changeset
|
6258 } |
|
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changeset
|
6259 retval.xcidx (j+1) = ii; |
|
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changeset
|
6260 } |
|
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changeset
|
6261 |
|
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changeset
|
6262 retval.maybe_compress (); |
|
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changeset
|
6263 |
|
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changeset
|
6264 UMFPACK_DNAME (report_info) (control, info); |
|
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changeset
|
6265 |
|
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changeset
|
6266 UMFPACK_DNAME (free_numeric) (&Numeric); |
|
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changeset
|
6267 } |
|
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changeset
|
6268 else |
|
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changeset
|
6269 mattype.mark_as_rectangular (); |
| 5681 | 6270 |
| 5203 | 6271 #else |
|
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changeset
|
6272 (*current_liboctave_error_handler) ("UMFPACK not installed"); |
| 5203 | 6273 #endif |
|
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changeset
|
6274 } |
| 5785 | 6275 else if (typ != MatrixType::Hermitian) |
|
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changeset
|
6276 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 6277 } |
|
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|
6278 |
| 5164 | 6279 return retval; |
| 6280 } | |
| 6281 | |
| 6282 ComplexMatrix | |
|
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John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
6283 SparseMatrix::fsolve (MatrixType &mattype, const ComplexMatrix& b, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6284 octave_idx_type& err, double& rcond, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6285 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6286 bool calc_cond) const |
| 5164 | 6287 { |
| 6288 ComplexMatrix retval; | |
| 6289 | |
| 5275 | 6290 octave_idx_type nr = rows (); |
| 6291 octave_idx_type nc = cols (); | |
| 5164 | 6292 err = 0; |
| 6293 | |
| 6924 | 6294 if (nr != nc || nr != b.rows ()) |
| 5164 | 6295 (*current_liboctave_error_handler) |
| 6296 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 6297 else if (nr == 0 || b.cols () == 0) |
| 6298 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0)); | |
| 5164 | 6299 else |
| 6300 { | |
| 6301 // Print spparms("spumoni") info if requested | |
| 5506 | 6302 volatile int typ = mattype.type (); |
| 5164 | 6303 mattype.info (); |
| 6304 | |
| 5785 | 6305 if (typ == MatrixType::Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6306 { |
| 5506 | 6307 #ifdef HAVE_CHOLMOD |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6308 cholmod_common Common; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6309 cholmod_common *cm = &Common; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6310 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6311 // Setup initial parameters |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
6312 CHOLMOD_NAME(start) (cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6313 cm->prefer_zomplex = false; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6314 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6315 double spu = octave_sparse_params::get_key ("spumoni"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6316 if (spu == 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6317 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6318 cm->print = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6319 cm->print_function = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6320 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6321 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6322 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6323 cm->print = static_cast<int> (spu) + 2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6324 cm->print_function =&SparseCholPrint; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6325 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6326 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6327 cm->error_handler = &SparseCholError; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6328 cm->complex_divide = CHOLMOD_NAME(divcomplex); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6329 cm->hypotenuse = CHOLMOD_NAME(hypot); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6330 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6331 cm->final_ll = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6332 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6333 cholmod_sparse Astore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6334 cholmod_sparse *A = &Astore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6335 double dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6336 A->nrow = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6337 A->ncol = nc; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6338 |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6339 A->p = cidx (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6340 A->i = ridx (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6341 A->nzmax = nnz (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6342 A->packed = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6343 A->sorted = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6344 A->nz = 0; |
|
16313
6aafe87a3144
use int64_t for idx type if --enable-64
John W. Eaton <jwe@octave.org>
parents:
15271
diff
changeset
|
6345 #ifdef USE_64_BIT_IDX_T |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6346 A->itype = CHOLMOD_LONG; |
| 5506 | 6347 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6348 A->itype = CHOLMOD_INT; |
| 5506 | 6349 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6350 A->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6351 A->stype = 1; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6352 A->xtype = CHOLMOD_REAL; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6353 |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
6354 if (nr < 1) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6355 A->x = &dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6356 else |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6357 A->x = data (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6358 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6359 cholmod_dense Bstore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6360 cholmod_dense *B = &Bstore; |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6361 B->nrow = b.rows (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6362 B->ncol = b.cols (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
6363 B->d = B->nrow; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6364 B->nzmax = B->nrow * B->ncol; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6365 B->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6366 B->xtype = CHOLMOD_COMPLEX; |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6367 if (nc < 1 || b.cols () < 1) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6368 B->x = &dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6369 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6370 // We won't alter it, honest :-) |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6371 B->x = const_cast<Complex *>(b.fortran_vec ()); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6372 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6373 cholmod_factor *L; |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
6374 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
6375 L = CHOLMOD_NAME(analyze) (A, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
6376 CHOLMOD_NAME(factorize) (A, L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
6377 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6378 rcond = CHOLMOD_NAME(rcond)(L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6379 else |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
6380 rcond = 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
6381 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
6382 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6383 if (rcond == 0.0) |
|
07ebe522dac2
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diff
changeset
|
6384 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6385 // Either its indefinite or singular. Try UMFPACK |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6386 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6387 typ = MatrixType::Full; |
|
07ebe522dac2
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diff
changeset
|
6388 } |
|
07ebe522dac2
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parents:
10158
diff
changeset
|
6389 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6390 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6391 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
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diff
changeset
|
6392 |
|
07ebe522dac2
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diff
changeset
|
6393 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6394 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6395 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6396 |
|
07ebe522dac2
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diff
changeset
|
6397 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6398 { |
|
07ebe522dac2
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10158
diff
changeset
|
6399 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6400 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
6401 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6402 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6403 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6404 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6405 rcond); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6406 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6407 return retval; |
|
07ebe522dac2
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parents:
10158
diff
changeset
|
6408 } |
|
07ebe522dac2
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parents:
10158
diff
changeset
|
6409 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6410 cholmod_dense *X; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6411 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6412 X = CHOLMOD_NAME(solve) (CHOLMOD_A, L, B, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6413 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6414 |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6415 retval.resize (b.rows (), b.cols ()); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6416 for (octave_idx_type j = 0; j < b.cols (); j++) |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6417 { |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6418 octave_idx_type jr = j * b.rows (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6419 for (octave_idx_type i = 0; i < b.rows (); i++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
6420 retval.xelem (i,j) = static_cast<Complex *>(X->x)[jr + i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6421 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6422 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6423 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6424 CHOLMOD_NAME(free_dense) (&X, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6425 CHOLMOD_NAME(free_factor) (&L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6426 CHOLMOD_NAME(finish) (cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6427 static char tmp[] = " "; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6428 CHOLMOD_NAME(print_common) (tmp, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6429 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6430 } |
| 5506 | 6431 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6432 (*current_liboctave_warning_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6433 ("CHOLMOD not installed"); |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
6434 |
|
07ebe522dac2
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diff
changeset
|
6435 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6436 typ = MatrixType::Full; |
| 5506 | 6437 #endif |
|
10314
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6438 } |
| 5164 | 6439 |
| 5785 | 6440 if (typ == MatrixType::Full) |
|
10314
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6441 { |
| 5203 | 6442 #ifdef HAVE_UMFPACK |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6443 Matrix Control, Info; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
6444 void *Numeric = factorize (err, rcond, Control, Info, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6445 sing_handler, calc_cond); |
|
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untabify liboctave C++ sources
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diff
changeset
|
6446 |
|
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untabify liboctave C++ sources
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diff
changeset
|
6447 if (err == 0) |
|
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untabify liboctave C++ sources
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diff
changeset
|
6448 { |
|
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untabify liboctave C++ sources
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diff
changeset
|
6449 octave_idx_type b_nr = b.rows (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6450 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6451 int status = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6452 double *control = Control.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6453 double *info = Info.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6454 const octave_idx_type *Ap = cidx (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6455 const octave_idx_type *Ai = ridx (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6456 const double *Ax = data (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6457 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6458 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6459 OCTAVE_LOCAL_BUFFER (double, Bz, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6460 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6461 retval.resize (b_nr, b_nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6462 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6463 OCTAVE_LOCAL_BUFFER (double, Xx, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6464 OCTAVE_LOCAL_BUFFER (double, Xz, b_nr); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
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changeset
|
6465 |
|
10314
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6466 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6467 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6468 for (octave_idx_type i = 0; i < b_nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6469 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6470 Complex c = b (i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6471 Bx[i] = std::real (c); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
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diff
changeset
|
6472 Bz[i] = std::imag (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6473 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6474 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6475 status = UMFPACK_DNAME (solve) (UMFPACK_A, Ap, |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6476 Ai, Ax, Xx, Bx, Numeric, control, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6477 info); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6478 int status2 = UMFPACK_DNAME (solve) (UMFPACK_A, |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6479 Ap, Ai, Ax, Xz, Bz, Numeric, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6480 control, info) ; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6481 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6482 if (status < 0 || status2 < 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6483 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6484 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6485 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6486 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6487 UMFPACK_DNAME (report_status) (control, status); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
6488 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6489 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
6490 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6491 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6492 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6493 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6494 for (octave_idx_type i = 0; i < b_nr; i++) |
|
14844
5bc9b9cb4362
maint: Use Octave coding conventions for cuddled parenthesis in retval assignments.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
6495 retval(i, j) = Complex (Xx[i], Xz[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6496 } |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
6497 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6498 UMFPACK_DNAME (report_info) (control, info); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6499 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6500 UMFPACK_DNAME (free_numeric) (&Numeric); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6501 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6502 else |
|
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untabify liboctave C++ sources
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diff
changeset
|
6503 mattype.mark_as_rectangular (); |
| 5681 | 6504 |
| 5203 | 6505 #else |
|
10314
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diff
changeset
|
6506 (*current_liboctave_error_handler) ("UMFPACK not installed"); |
| 5203 | 6507 #endif |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
6508 } |
| 5785 | 6509 else if (typ != MatrixType::Hermitian) |
|
10314
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diff
changeset
|
6510 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 6511 } |
|
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diff
changeset
|
6512 |
| 5164 | 6513 return retval; |
| 6514 } | |
| 6515 | |
| 6516 SparseComplexMatrix | |
|
11586
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diff
changeset
|
6517 SparseMatrix::fsolve (MatrixType &mattype, const SparseComplexMatrix& b, |
|
10314
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diff
changeset
|
6518 octave_idx_type& err, double& rcond, |
|
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changeset
|
6519 solve_singularity_handler sing_handler, |
|
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diff
changeset
|
6520 bool calc_cond) const |
| 5164 | 6521 { |
| 6522 SparseComplexMatrix retval; | |
| 6523 | |
| 5275 | 6524 octave_idx_type nr = rows (); |
| 6525 octave_idx_type nc = cols (); | |
| 5164 | 6526 err = 0; |
| 6527 | |
| 6924 | 6528 if (nr != nc || nr != b.rows ()) |
| 5164 | 6529 (*current_liboctave_error_handler) |
| 6530 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 6531 else if (nr == 0 || b.cols () == 0) |
| 6532 retval = SparseComplexMatrix (nc, b.cols ()); | |
| 5164 | 6533 else |
| 6534 { | |
| 6535 // Print spparms("spumoni") info if requested | |
| 5506 | 6536 volatile int typ = mattype.type (); |
| 5164 | 6537 mattype.info (); |
| 6538 | |
| 5785 | 6539 if (typ == MatrixType::Hermitian) |
|
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changeset
|
6540 { |
| 5506 | 6541 #ifdef HAVE_CHOLMOD |
|
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changeset
|
6542 cholmod_common Common; |
|
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changeset
|
6543 cholmod_common *cm = &Common; |
|
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changeset
|
6544 |
|
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changeset
|
6545 // Setup initial parameters |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6546 CHOLMOD_NAME(start) (cm); |
|
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untabify liboctave C++ sources
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changeset
|
6547 cm->prefer_zomplex = false; |
|
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changeset
|
6548 |
|
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changeset
|
6549 double spu = octave_sparse_params::get_key ("spumoni"); |
|
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changeset
|
6550 if (spu == 0.) |
|
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diff
changeset
|
6551 { |
|
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diff
changeset
|
6552 cm->print = -1; |
|
07ebe522dac2
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diff
changeset
|
6553 cm->print_function = 0; |
|
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diff
changeset
|
6554 } |
|
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10158
diff
changeset
|
6555 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6556 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6557 cm->print = static_cast<int> (spu) + 2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6558 cm->print_function =&SparseCholPrint; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6559 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6560 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6561 cm->error_handler = &SparseCholError; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6562 cm->complex_divide = CHOLMOD_NAME(divcomplex); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6563 cm->hypotenuse = CHOLMOD_NAME(hypot); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6564 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6565 cm->final_ll = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6566 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6567 cholmod_sparse Astore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6568 cholmod_sparse *A = &Astore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6569 double dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6570 A->nrow = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6571 A->ncol = nc; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6572 |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6573 A->p = cidx (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6574 A->i = ridx (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6575 A->nzmax = nnz (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6576 A->packed = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6577 A->sorted = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6578 A->nz = 0; |
|
16313
6aafe87a3144
use int64_t for idx type if --enable-64
John W. Eaton <jwe@octave.org>
parents:
15271
diff
changeset
|
6579 #ifdef USE_64_BIT_IDX_T |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6580 A->itype = CHOLMOD_LONG; |
| 5506 | 6581 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6582 A->itype = CHOLMOD_INT; |
| 5506 | 6583 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6584 A->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6585 A->stype = 1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6586 A->xtype = CHOLMOD_REAL; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6587 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6588 if (nr < 1) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6589 A->x = &dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6590 else |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6591 A->x = data (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6592 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6593 cholmod_sparse Bstore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6594 cholmod_sparse *B = &Bstore; |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6595 B->nrow = b.rows (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6596 B->ncol = b.cols (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6597 B->p = b.cidx (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6598 B->i = b.ridx (); |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6599 B->nzmax = b.nnz (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6600 B->packed = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6601 B->sorted = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6602 B->nz = 0; |
|
16313
6aafe87a3144
use int64_t for idx type if --enable-64
John W. Eaton <jwe@octave.org>
parents:
15271
diff
changeset
|
6603 #ifdef USE_64_BIT_IDX_T |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6604 B->itype = CHOLMOD_LONG; |
| 5506 | 6605 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6606 B->itype = CHOLMOD_INT; |
| 5506 | 6607 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6608 B->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6609 B->stype = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6610 B->xtype = CHOLMOD_COMPLEX; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6611 |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6612 if (b.rows () < 1 || b.cols () < 1) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6613 B->x = &dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6614 else |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6615 B->x = b.data (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6616 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6617 cholmod_factor *L; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6618 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6619 L = CHOLMOD_NAME(analyze) (A, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6620 CHOLMOD_NAME(factorize) (A, L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6621 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6622 rcond = CHOLMOD_NAME(rcond)(L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6623 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6624 rcond = 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6625 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6626 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6627 if (rcond == 0.0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6628 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6629 // Either its indefinite or singular. Try UMFPACK |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6630 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6631 typ = MatrixType::Full; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6632 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6633 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6634 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6635 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6636 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6637 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6638 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6639 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6640 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6641 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6642 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6643 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6644 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6645 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6646 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6647 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6648 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6649 rcond); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6650 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6651 return retval; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6652 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6653 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6654 cholmod_sparse *X; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6655 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6656 X = CHOLMOD_NAME(spsolve) (CHOLMOD_A, L, B, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6657 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6658 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6659 retval = SparseComplexMatrix |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6660 (static_cast<octave_idx_type>(X->nrow), |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6661 static_cast<octave_idx_type>(X->ncol), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6662 static_cast<octave_idx_type>(X->nzmax)); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6663 for (octave_idx_type j = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6664 j <= static_cast<octave_idx_type>(X->ncol); j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
6665 retval.xcidx (j) = static_cast<octave_idx_type *>(X->p)[j]; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6666 for (octave_idx_type j = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6667 j < static_cast<octave_idx_type>(X->nzmax); j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6668 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
6669 retval.xridx (j) = static_cast<octave_idx_type *>(X->i)[j]; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
6670 retval.xdata (j) = static_cast<Complex *>(X->x)[j]; |
|
10314
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|
6671 } |
|
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|
6672 |
|
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|
6673 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
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|
6674 CHOLMOD_NAME(free_sparse) (&X, cm); |
|
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|
6675 CHOLMOD_NAME(free_factor) (&L, cm); |
|
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|
6676 CHOLMOD_NAME(finish) (cm); |
|
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|
6677 static char tmp[] = " "; |
|
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|
6678 CHOLMOD_NAME(print_common) (tmp, cm); |
|
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|
6679 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
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|
6680 } |
| 5506 | 6681 #else |
|
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|
6682 (*current_liboctave_warning_handler) |
|
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|
6683 ("CHOLMOD not installed"); |
|
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|
6684 |
|
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|
6685 mattype.mark_as_unsymmetric (); |
|
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|
6686 typ = MatrixType::Full; |
| 5506 | 6687 #endif |
|
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|
6688 } |
| 5164 | 6689 |
| 5785 | 6690 if (typ == MatrixType::Full) |
|
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|
6691 { |
| 5203 | 6692 #ifdef HAVE_UMFPACK |
|
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|
6693 Matrix Control, Info; |
|
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|
6694 void *Numeric = factorize (err, rcond, Control, Info, |
|
10314
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|
6695 sing_handler, calc_cond); |
|
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|
6696 |
|
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|
6697 if (err == 0) |
|
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|
6698 { |
|
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|
6699 octave_idx_type b_nr = b.rows (); |
|
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|
6700 octave_idx_type b_nc = b.cols (); |
|
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|
6701 int status = 0; |
|
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|
6702 double *control = Control.fortran_vec (); |
|
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|
6703 double *info = Info.fortran_vec (); |
|
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|
6704 const octave_idx_type *Ap = cidx (); |
|
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|
6705 const octave_idx_type *Ai = ridx (); |
|
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|
6706 const double *Ax = data (); |
|
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|
6707 |
|
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|
6708 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr); |
|
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|
6709 OCTAVE_LOCAL_BUFFER (double, Bz, b_nr); |
|
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|
6710 |
|
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|
6711 // Take a first guess that the number of non-zero terms |
|
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|
6712 // will be as many as in b |
|
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|
6713 octave_idx_type x_nz = b.nnz (); |
|
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|
6714 octave_idx_type ii = 0; |
|
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|
6715 retval = SparseComplexMatrix (b_nr, b_nc, x_nz); |
|
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|
6716 |
|
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changeset
|
6717 OCTAVE_LOCAL_BUFFER (double, Xx, b_nr); |
|
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|
6718 OCTAVE_LOCAL_BUFFER (double, Xz, b_nr); |
|
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|
6719 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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changeset
|
6720 retval.xcidx (0) = 0; |
|
10314
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|
6721 for (octave_idx_type j = 0; j < b_nc; j++) |
|
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|
6722 { |
|
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changeset
|
6723 for (octave_idx_type i = 0; i < b_nr; i++) |
|
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|
6724 { |
|
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changeset
|
6725 Complex c = b (i,j); |
|
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|
6726 Bx[i] = std::real (c); |
|
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|
6727 Bz[i] = std::imag (c); |
|
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diff
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|
6728 } |
|
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diff
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|
6729 |
|
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|
6730 status = UMFPACK_DNAME (solve) (UMFPACK_A, Ap, |
|
11586
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|
6731 Ai, Ax, Xx, Bx, Numeric, control, |
|
10314
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|
6732 info); |
|
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changeset
|
6733 int status2 = UMFPACK_DNAME (solve) (UMFPACK_A, |
|
11586
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|
6734 Ap, Ai, Ax, Xz, Bz, Numeric, |
|
10314
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|
6735 control, info) ; |
|
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|
6736 |
|
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|
6737 if (status < 0 || status2 < 0) |
|
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|
6738 { |
|
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diff
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|
6739 (*current_liboctave_error_handler) |
|
10314
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changeset
|
6740 ("SparseMatrix::solve solve failed"); |
|
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diff
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|
6741 |
|
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changeset
|
6742 UMFPACK_DNAME (report_status) (control, status); |
|
11586
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|
6743 |
|
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|
6744 err = -1; |
|
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diff
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|
6745 |
|
07ebe522dac2
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diff
changeset
|
6746 break; |
|
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diff
changeset
|
6747 } |
|
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diff
changeset
|
6748 |
|
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changeset
|
6749 for (octave_idx_type i = 0; i < b_nr; i++) |
|
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|
6750 { |
|
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diff
changeset
|
6751 Complex tmp = Complex (Xx[i], Xz[i]); |
|
07ebe522dac2
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|
6752 if (tmp != 0.0) |
|
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|
6753 { |
|
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changeset
|
6754 if (ii == x_nz) |
|
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changeset
|
6755 { |
|
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changeset
|
6756 // Resize the sparse matrix |
|
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|
6757 octave_idx_type sz = x_nz * (b_nc - j) / b_nc; |
|
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|
6758 sz = (sz > 10 ? sz : 10) + x_nz; |
|
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|
6759 retval.change_capacity (sz); |
|
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changeset
|
6760 x_nz = sz; |
|
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|
6761 } |
|
15018
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Rik <rik@octave.org>
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changeset
|
6762 retval.xdata (ii) = tmp; |
|
3d8ace26c5b4
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Rik <rik@octave.org>
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changeset
|
6763 retval.xridx (ii++) = i; |
|
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|
6764 } |
|
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|
6765 } |
|
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|
6766 retval.xcidx (j+1) = ii; |
|
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|
6767 } |
|
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|
6768 |
|
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changeset
|
6769 retval.maybe_compress (); |
|
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|
6770 |
|
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changeset
|
6771 UMFPACK_DNAME (report_info) (control, info); |
|
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|
6772 |
|
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changeset
|
6773 UMFPACK_DNAME (free_numeric) (&Numeric); |
|
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|
6774 } |
|
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changeset
|
6775 else |
|
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changeset
|
6776 mattype.mark_as_rectangular (); |
| 5203 | 6777 #else |
|
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|
6778 (*current_liboctave_error_handler) ("UMFPACK not installed"); |
| 5203 | 6779 #endif |
|
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|
6780 } |
| 5785 | 6781 else if (typ != MatrixType::Hermitian) |
|
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changeset
|
6782 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 6783 } |
|
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|
6784 |
| 5164 | 6785 return retval; |
| 6786 } | |
| 6787 | |
| 6788 Matrix | |
| 5785 | 6789 SparseMatrix::solve (MatrixType &mattype, const Matrix& b) const |
| 5164 | 6790 { |
| 5275 | 6791 octave_idx_type info; |
| 5164 | 6792 double rcond; |
| 6793 return solve (mattype, b, info, rcond, 0); | |
| 6794 } | |
| 6795 | |
| 6796 Matrix | |
|
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changeset
|
6797 SparseMatrix::solve (MatrixType &mattype, const Matrix& b, |
|
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|
6798 octave_idx_type& info) const |
| 5164 | 6799 { |
| 6800 double rcond; | |
| 6801 return solve (mattype, b, info, rcond, 0); | |
| 6802 } | |
| 6803 | |
| 6804 Matrix | |
|
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|
6805 SparseMatrix::solve (MatrixType &mattype, const Matrix& b, octave_idx_type& info, |
|
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|
6806 double& rcond) const |
| 5164 | 6807 { |
| 6808 return solve (mattype, b, info, rcond, 0); | |
| 6809 } | |
| 6810 | |
| 6811 Matrix | |
|
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6812 SparseMatrix::solve (MatrixType &mattype, const Matrix& b, octave_idx_type& err, |
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6813 double& rcond, solve_singularity_handler sing_handler, |
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6814 bool singular_fallback) const |
| 5164 | 6815 { |
| 5681 | 6816 Matrix retval; |
| 5322 | 6817 int typ = mattype.type (false); |
| 5164 | 6818 |
| 5785 | 6819 if (typ == MatrixType::Unknown) |
| 5164 | 6820 typ = mattype.type (*this); |
| 6821 | |
| 5681 | 6822 // Only calculate the condition number for CHOLMOD/UMFPACK |
| 5785 | 6823 if (typ == MatrixType::Diagonal || typ == MatrixType::Permuted_Diagonal) |
| 5681 | 6824 retval = dsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6825 else if (typ == MatrixType::Upper || typ == MatrixType::Permuted_Upper) |
| 5681 | 6826 retval = utsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6827 else if (typ == MatrixType::Lower || typ == MatrixType::Permuted_Lower) |
| 5681 | 6828 retval = ltsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6829 else if (typ == MatrixType::Banded || typ == MatrixType::Banded_Hermitian) |
| 5681 | 6830 retval = bsolve (mattype, b, err, rcond, sing_handler, false); |
|
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6831 else if (typ == MatrixType::Tridiagonal || |
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6832 typ == MatrixType::Tridiagonal_Hermitian) |
| 5681 | 6833 retval = trisolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6834 else if (typ == MatrixType::Full || typ == MatrixType::Hermitian) |
| 5681 | 6835 retval = fsolve (mattype, b, err, rcond, sing_handler, true); |
| 5785 | 6836 else if (typ != MatrixType::Rectangular) |
| 5164 | 6837 { |
| 5681 | 6838 (*current_liboctave_error_handler) ("unknown matrix type"); |
| 5164 | 6839 return Matrix (); |
| 6840 } | |
| 5681 | 6841 |
| 6842 // Rectangular or one of the above solvers flags a singular matrix | |
| 5785 | 6843 if (singular_fallback && mattype.type (false) == MatrixType::Rectangular) |
| 5681 | 6844 { |
| 6845 rcond = 1.; | |
| 6846 #ifdef USE_QRSOLVE | |
| 6847 retval = qrsolve (*this, b, err); | |
| 6848 #else | |
| 6849 retval = dmsolve<Matrix, SparseMatrix, Matrix> (*this, b, err); | |
| 6850 #endif | |
| 6851 } | |
| 6852 | |
| 6853 return retval; | |
| 5164 | 6854 } |
| 6855 | |
| 6856 SparseMatrix | |
| 5785 | 6857 SparseMatrix::solve (MatrixType &mattype, const SparseMatrix& b) const |
| 5164 | 6858 { |
| 5275 | 6859 octave_idx_type info; |
| 5164 | 6860 double rcond; |
| 6861 return solve (mattype, b, info, rcond, 0); | |
| 6862 } | |
| 6863 | |
| 6864 SparseMatrix | |
|
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6865 SparseMatrix::solve (MatrixType &mattype, const SparseMatrix& b, |
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6866 octave_idx_type& info) const |
| 5164 | 6867 { |
| 6868 double rcond; | |
| 6869 return solve (mattype, b, info, rcond, 0); | |
| 6870 } | |
| 6871 | |
| 6872 SparseMatrix | |
| 5785 | 6873 SparseMatrix::solve (MatrixType &mattype, const SparseMatrix& b, |
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6874 octave_idx_type& info, double& rcond) const |
| 5164 | 6875 { |
| 6876 return solve (mattype, b, info, rcond, 0); | |
| 6877 } | |
| 6878 | |
| 6879 SparseMatrix | |
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6880 SparseMatrix::solve (MatrixType &mattype, const SparseMatrix& b, |
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6881 octave_idx_type& err, double& rcond, |
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6882 solve_singularity_handler sing_handler, |
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6883 bool singular_fallback) const |
| 5164 | 6884 { |
| 5681 | 6885 SparseMatrix retval; |
| 5322 | 6886 int typ = mattype.type (false); |
| 5164 | 6887 |
| 5785 | 6888 if (typ == MatrixType::Unknown) |
| 5164 | 6889 typ = mattype.type (*this); |
| 6890 | |
| 5785 | 6891 if (typ == MatrixType::Diagonal || typ == MatrixType::Permuted_Diagonal) |
| 5681 | 6892 retval = dsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6893 else if (typ == MatrixType::Upper || typ == MatrixType::Permuted_Upper) |
| 5681 | 6894 retval = utsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6895 else if (typ == MatrixType::Lower || typ == MatrixType::Permuted_Lower) |
| 5681 | 6896 retval = ltsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6897 else if (typ == MatrixType::Banded || typ == MatrixType::Banded_Hermitian) |
| 5681 | 6898 retval = bsolve (mattype, b, err, rcond, sing_handler, false); |
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6899 else if (typ == MatrixType::Tridiagonal || |
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6900 typ == MatrixType::Tridiagonal_Hermitian) |
| 5681 | 6901 retval = trisolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6902 else if (typ == MatrixType::Full || typ == MatrixType::Hermitian) |
| 5681 | 6903 retval = fsolve (mattype, b, err, rcond, sing_handler, true); |
| 5785 | 6904 else if (typ != MatrixType::Rectangular) |
| 5164 | 6905 { |
| 5681 | 6906 (*current_liboctave_error_handler) ("unknown matrix type"); |
| 5164 | 6907 return SparseMatrix (); |
| 6908 } | |
| 5681 | 6909 |
| 5785 | 6910 if (singular_fallback && mattype.type (false) == MatrixType::Rectangular) |
| 5681 | 6911 { |
| 6912 rcond = 1.; | |
| 6913 #ifdef USE_QRSOLVE | |
| 6914 retval = qrsolve (*this, b, err); | |
| 6915 #else | |
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6916 retval = dmsolve<SparseMatrix, SparseMatrix, |
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6917 SparseMatrix> (*this, b, err); |
| 5681 | 6918 #endif |
| 6919 } | |
| 6920 | |
| 6921 return retval; | |
| 5164 | 6922 } |
| 6923 | |
| 6924 ComplexMatrix | |
| 5785 | 6925 SparseMatrix::solve (MatrixType &mattype, const ComplexMatrix& b) const |
| 5164 | 6926 { |
| 5275 | 6927 octave_idx_type info; |
| 5164 | 6928 double rcond; |
| 6929 return solve (mattype, b, info, rcond, 0); | |
| 6930 } | |
| 6931 | |
| 6932 ComplexMatrix | |
|
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6933 SparseMatrix::solve (MatrixType &mattype, const ComplexMatrix& b, |
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6934 octave_idx_type& info) const |
| 5164 | 6935 { |
| 6936 double rcond; | |
| 6937 return solve (mattype, b, info, rcond, 0); | |
| 6938 } | |
| 6939 | |
| 6940 ComplexMatrix | |
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6941 SparseMatrix::solve (MatrixType &mattype, const ComplexMatrix& b, |
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6942 octave_idx_type& info, double& rcond) const |
| 5164 | 6943 { |
| 6944 return solve (mattype, b, info, rcond, 0); | |
| 6945 } | |
| 6946 | |
| 6947 ComplexMatrix | |
|
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6948 SparseMatrix::solve (MatrixType &mattype, const ComplexMatrix& b, |
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6949 octave_idx_type& err, double& rcond, |
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6950 solve_singularity_handler sing_handler, |
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6951 bool singular_fallback) const |
| 5164 | 6952 { |
| 5681 | 6953 ComplexMatrix retval; |
| 5322 | 6954 int typ = mattype.type (false); |
| 5164 | 6955 |
| 5785 | 6956 if (typ == MatrixType::Unknown) |
| 5164 | 6957 typ = mattype.type (*this); |
| 6958 | |
| 5785 | 6959 if (typ == MatrixType::Diagonal || typ == MatrixType::Permuted_Diagonal) |
| 5681 | 6960 retval = dsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6961 else if (typ == MatrixType::Upper || typ == MatrixType::Permuted_Upper) |
| 5681 | 6962 retval = utsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6963 else if (typ == MatrixType::Lower || typ == MatrixType::Permuted_Lower) |
| 5681 | 6964 retval = ltsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6965 else if (typ == MatrixType::Banded || typ == MatrixType::Banded_Hermitian) |
| 5681 | 6966 retval = bsolve (mattype, b, err, rcond, sing_handler, false); |
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6967 else if (typ == MatrixType::Tridiagonal || |
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6968 typ == MatrixType::Tridiagonal_Hermitian) |
| 5681 | 6969 retval = trisolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6970 else if (typ == MatrixType::Full || typ == MatrixType::Hermitian) |
| 5681 | 6971 retval = fsolve (mattype, b, err, rcond, sing_handler, true); |
| 5785 | 6972 else if (typ != MatrixType::Rectangular) |
| 5164 | 6973 { |
| 5681 | 6974 (*current_liboctave_error_handler) ("unknown matrix type"); |
| 5164 | 6975 return ComplexMatrix (); |
| 6976 } | |
| 5681 | 6977 |
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6978 if (singular_fallback && mattype.type (false) == MatrixType::Rectangular) |
| 5681 | 6979 { |
| 6980 rcond = 1.; | |
| 6981 #ifdef USE_QRSOLVE | |
| 6982 retval = qrsolve (*this, b, err); | |
| 6983 #else | |
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6984 retval = dmsolve<ComplexMatrix, SparseMatrix, |
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6985 ComplexMatrix> (*this, b, err); |
| 5681 | 6986 #endif |
| 6987 } | |
| 6988 | |
| 6989 return retval; | |
| 5164 | 6990 } |
| 6991 | |
| 6992 SparseComplexMatrix | |
| 5785 | 6993 SparseMatrix::solve (MatrixType &mattype, const SparseComplexMatrix& b) const |
| 5164 | 6994 { |
| 5275 | 6995 octave_idx_type info; |
| 5164 | 6996 double rcond; |
| 6997 return solve (mattype, b, info, rcond, 0); | |
| 6998 } | |
| 6999 | |
| 7000 SparseComplexMatrix | |
|
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7001 SparseMatrix::solve (MatrixType &mattype, const SparseComplexMatrix& b, |
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7002 octave_idx_type& info) const |
| 5164 | 7003 { |
| 7004 double rcond; | |
| 7005 return solve (mattype, b, info, rcond, 0); | |
| 7006 } | |
| 7007 | |
| 7008 SparseComplexMatrix | |
| 5785 | 7009 SparseMatrix::solve (MatrixType &mattype, const SparseComplexMatrix& b, |
|
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7010 octave_idx_type& info, double& rcond) const |
| 5164 | 7011 { |
| 7012 return solve (mattype, b, info, rcond, 0); | |
| 7013 } | |
| 7014 | |
| 7015 SparseComplexMatrix | |
|
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7016 SparseMatrix::solve (MatrixType &mattype, const SparseComplexMatrix& b, |
|
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7017 octave_idx_type& err, double& rcond, |
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7018 solve_singularity_handler sing_handler, |
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7019 bool singular_fallback) const |
| 5164 | 7020 { |
| 5681 | 7021 SparseComplexMatrix retval; |
| 5322 | 7022 int typ = mattype.type (false); |
| 5164 | 7023 |
| 5785 | 7024 if (typ == MatrixType::Unknown) |
| 5164 | 7025 typ = mattype.type (*this); |
| 7026 | |
| 5785 | 7027 if (typ == MatrixType::Diagonal || typ == MatrixType::Permuted_Diagonal) |
| 5681 | 7028 retval = dsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 7029 else if (typ == MatrixType::Upper || typ == MatrixType::Permuted_Upper) |
| 5681 | 7030 retval = utsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 7031 else if (typ == MatrixType::Lower || typ == MatrixType::Permuted_Lower) |
| 5681 | 7032 retval = ltsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 7033 else if (typ == MatrixType::Banded || typ == MatrixType::Banded_Hermitian) |
| 5681 | 7034 retval = bsolve (mattype, b, err, rcond, sing_handler, false); |
|
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7035 else if (typ == MatrixType::Tridiagonal || |
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7036 typ == MatrixType::Tridiagonal_Hermitian) |
| 5681 | 7037 retval = trisolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 7038 else if (typ == MatrixType::Full || typ == MatrixType::Hermitian) |
| 5681 | 7039 retval = fsolve (mattype, b, err, rcond, sing_handler, true); |
| 5785 | 7040 else if (typ != MatrixType::Rectangular) |
| 5164 | 7041 { |
| 5681 | 7042 (*current_liboctave_error_handler) ("unknown matrix type"); |
| 5164 | 7043 return SparseComplexMatrix (); |
| 7044 } | |
| 5681 | 7045 |
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7046 if (singular_fallback && mattype.type (false) == MatrixType::Rectangular) |
| 5681 | 7047 { |
| 7048 rcond = 1.; | |
| 7049 #ifdef USE_QRSOLVE | |
| 7050 retval = qrsolve (*this, b, err); | |
| 7051 #else | |
|
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7052 retval = dmsolve<SparseComplexMatrix, SparseMatrix, |
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7053 SparseComplexMatrix> (*this, b, err); |
| 5681 | 7054 #endif |
| 7055 } | |
| 7056 | |
| 7057 return retval; | |
| 5164 | 7058 } |
| 7059 | |
| 7060 ColumnVector | |
| 5785 | 7061 SparseMatrix::solve (MatrixType &mattype, const ColumnVector& b) const |
| 5164 | 7062 { |
| 5275 | 7063 octave_idx_type info; double rcond; |
| 5164 | 7064 return solve (mattype, b, info, rcond); |
| 7065 } | |
| 7066 | |
| 7067 ColumnVector | |
| 5785 | 7068 SparseMatrix::solve (MatrixType &mattype, const ColumnVector& b, octave_idx_type& info) const |
| 5164 | 7069 { |
| 7070 double rcond; | |
| 7071 return solve (mattype, b, info, rcond); | |
| 7072 } | |
| 7073 | |
| 7074 ColumnVector | |
| 5785 | 7075 SparseMatrix::solve (MatrixType &mattype, const ColumnVector& b, octave_idx_type& info, double& rcond) const |
| 5164 | 7076 { |
| 7077 return solve (mattype, b, info, rcond, 0); | |
| 7078 } | |
| 7079 | |
| 7080 ColumnVector | |
| 5785 | 7081 SparseMatrix::solve (MatrixType &mattype, const ColumnVector& b, octave_idx_type& info, double& rcond, |
|
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7082 solve_singularity_handler sing_handler) const |
| 5164 | 7083 { |
| 7084 Matrix tmp (b); | |
| 5275 | 7085 return solve (mattype, tmp, info, rcond, sing_handler).column (static_cast<octave_idx_type> (0)); |
| 5164 | 7086 } |
| 7087 | |
| 7088 ComplexColumnVector | |
| 5785 | 7089 SparseMatrix::solve (MatrixType &mattype, const ComplexColumnVector& b) const |
| 5164 | 7090 { |
| 5275 | 7091 octave_idx_type info; |
| 5164 | 7092 double rcond; |
| 7093 return solve (mattype, b, info, rcond, 0); | |
| 7094 } | |
| 7095 | |
| 7096 ComplexColumnVector | |
| 5785 | 7097 SparseMatrix::solve (MatrixType &mattype, const ComplexColumnVector& b, octave_idx_type& info) const |
| 5164 | 7098 { |
| 7099 double rcond; | |
| 7100 return solve (mattype, b, info, rcond, 0); | |
| 7101 } | |
| 7102 | |
| 7103 ComplexColumnVector | |
|
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7104 SparseMatrix::solve (MatrixType &mattype, const ComplexColumnVector& b, octave_idx_type& info, |
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7105 double& rcond) const |
| 5164 | 7106 { |
| 7107 return solve (mattype, b, info, rcond, 0); | |
| 7108 } | |
| 7109 | |
| 7110 ComplexColumnVector | |
| 5785 | 7111 SparseMatrix::solve (MatrixType &mattype, const ComplexColumnVector& b, octave_idx_type& info, double& rcond, |
|
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7112 solve_singularity_handler sing_handler) const |
| 5164 | 7113 { |
| 7114 ComplexMatrix tmp (b); | |
| 5275 | 7115 return solve (mattype, tmp, info, rcond, sing_handler).column (static_cast<octave_idx_type> (0)); |
| 5164 | 7116 } |
| 7117 | |
| 7118 Matrix | |
| 7119 SparseMatrix::solve (const Matrix& b) const | |
| 7120 { | |
| 5275 | 7121 octave_idx_type info; |
| 5164 | 7122 double rcond; |
| 7123 return solve (b, info, rcond, 0); | |
| 7124 } | |
| 7125 | |
| 7126 Matrix | |
| 5275 | 7127 SparseMatrix::solve (const Matrix& b, octave_idx_type& info) const |
| 5164 | 7128 { |
| 7129 double rcond; | |
| 7130 return solve (b, info, rcond, 0); | |
| 7131 } | |
| 7132 | |
| 7133 Matrix | |
|
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changeset
|
7134 SparseMatrix::solve (const Matrix& b, octave_idx_type& info, |
|
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|
7135 double& rcond) const |
| 5164 | 7136 { |
| 7137 return solve (b, info, rcond, 0); | |
| 7138 } | |
| 7139 | |
| 7140 Matrix | |
|
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changeset
|
7141 SparseMatrix::solve (const Matrix& b, octave_idx_type& err, |
|
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|
7142 double& rcond, |
|
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|
7143 solve_singularity_handler sing_handler) const |
| 5164 | 7144 { |
| 5785 | 7145 MatrixType mattype (*this); |
| 5164 | 7146 return solve (mattype, b, err, rcond, sing_handler); |
| 7147 } | |
| 7148 | |
| 7149 SparseMatrix | |
| 7150 SparseMatrix::solve (const SparseMatrix& b) const | |
| 7151 { | |
| 5275 | 7152 octave_idx_type info; |
| 5164 | 7153 double rcond; |
| 7154 return solve (b, info, rcond, 0); | |
| 7155 } | |
| 7156 | |
| 7157 SparseMatrix | |
|
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changeset
|
7158 SparseMatrix::solve (const SparseMatrix& b, |
|
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|
7159 octave_idx_type& info) const |
| 5164 | 7160 { |
| 7161 double rcond; | |
| 7162 return solve (b, info, rcond, 0); | |
| 7163 } | |
| 7164 | |
| 7165 SparseMatrix | |
| 7166 SparseMatrix::solve (const SparseMatrix& b, | |
|
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|
7167 octave_idx_type& info, double& rcond) const |
| 5164 | 7168 { |
| 7169 return solve (b, info, rcond, 0); | |
| 7170 } | |
| 7171 | |
| 7172 SparseMatrix | |
|
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|
7173 SparseMatrix::solve (const SparseMatrix& b, |
|
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|
7174 octave_idx_type& err, double& rcond, |
|
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|
7175 solve_singularity_handler sing_handler) const |
| 5164 | 7176 { |
| 5785 | 7177 MatrixType mattype (*this); |
| 5164 | 7178 return solve (mattype, b, err, rcond, sing_handler); |
| 7179 } | |
| 7180 | |
| 7181 ComplexMatrix | |
|
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|
7182 SparseMatrix::solve (const ComplexMatrix& b, |
|
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John W. Eaton <jwe@octave.org>
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|
7183 octave_idx_type& info) const |
| 5164 | 7184 { |
| 7185 double rcond; | |
| 7186 return solve (b, info, rcond, 0); | |
| 7187 } | |
| 7188 | |
| 7189 ComplexMatrix | |
|
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|
7190 SparseMatrix::solve (const ComplexMatrix& b, |
|
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John W. Eaton <jwe@octave.org>
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|
7191 octave_idx_type& info, double& rcond) const |
| 5164 | 7192 { |
| 7193 return solve (b, info, rcond, 0); | |
| 7194 } | |
| 7195 | |
| 7196 ComplexMatrix | |
|
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changeset
|
7197 SparseMatrix::solve (const ComplexMatrix& b, |
|
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|
7198 octave_idx_type& err, double& rcond, |
|
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John W. Eaton <jwe@octave.org>
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|
7199 solve_singularity_handler sing_handler) const |
| 5164 | 7200 { |
| 5785 | 7201 MatrixType mattype (*this); |
| 5164 | 7202 return solve (mattype, b, err, rcond, sing_handler); |
| 7203 } | |
| 7204 | |
| 7205 SparseComplexMatrix | |
| 7206 SparseMatrix::solve (const SparseComplexMatrix& b) const | |
| 7207 { | |
| 5275 | 7208 octave_idx_type info; |
| 5164 | 7209 double rcond; |
| 7210 return solve (b, info, rcond, 0); | |
| 7211 } | |
| 7212 | |
| 7213 SparseComplexMatrix | |
|
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changeset
|
7214 SparseMatrix::solve (const SparseComplexMatrix& b, |
|
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|
7215 octave_idx_type& info) const |
| 5164 | 7216 { |
| 7217 double rcond; | |
| 7218 return solve (b, info, rcond, 0); | |
| 7219 } | |
| 7220 | |
| 7221 SparseComplexMatrix | |
| 7222 SparseMatrix::solve (const SparseComplexMatrix& b, | |
|
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|
7223 octave_idx_type& info, double& rcond) const |
| 5164 | 7224 { |
| 7225 return solve (b, info, rcond, 0); | |
| 7226 } | |
| 7227 | |
| 7228 SparseComplexMatrix | |
|
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changeset
|
7229 SparseMatrix::solve (const SparseComplexMatrix& b, |
|
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changeset
|
7230 octave_idx_type& err, double& rcond, |
|
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untabify liboctave C++ sources
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changeset
|
7231 solve_singularity_handler sing_handler) const |
| 5164 | 7232 { |
| 5785 | 7233 MatrixType mattype (*this); |
| 5164 | 7234 return solve (mattype, b, err, rcond, sing_handler); |
| 7235 } | |
| 7236 | |
| 7237 ColumnVector | |
| 7238 SparseMatrix::solve (const ColumnVector& b) const | |
| 7239 { | |
| 5275 | 7240 octave_idx_type info; double rcond; |
| 5164 | 7241 return solve (b, info, rcond); |
| 7242 } | |
| 7243 | |
| 7244 ColumnVector | |
| 5275 | 7245 SparseMatrix::solve (const ColumnVector& b, octave_idx_type& info) const |
| 5164 | 7246 { |
| 7247 double rcond; | |
| 7248 return solve (b, info, rcond); | |
| 7249 } | |
| 7250 | |
| 7251 ColumnVector | |
| 5275 | 7252 SparseMatrix::solve (const ColumnVector& b, octave_idx_type& info, double& rcond) const |
| 5164 | 7253 { |
| 7254 return solve (b, info, rcond, 0); | |
| 7255 } | |
| 7256 | |
| 7257 ColumnVector | |
| 5275 | 7258 SparseMatrix::solve (const ColumnVector& b, octave_idx_type& info, double& rcond, |
|
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John W. Eaton <jwe@octave.org>
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|
7259 solve_singularity_handler sing_handler) const |
| 5164 | 7260 { |
| 7261 Matrix tmp (b); | |
| 5275 | 7262 return solve (tmp, info, rcond, sing_handler).column (static_cast<octave_idx_type> (0)); |
| 5164 | 7263 } |
| 7264 | |
| 7265 ComplexColumnVector | |
| 7266 SparseMatrix::solve (const ComplexColumnVector& b) const | |
| 7267 { | |
| 5275 | 7268 octave_idx_type info; |
| 5164 | 7269 double rcond; |
| 7270 return solve (b, info, rcond, 0); | |
| 7271 } | |
| 7272 | |
| 7273 ComplexColumnVector | |
| 5275 | 7274 SparseMatrix::solve (const ComplexColumnVector& b, octave_idx_type& info) const |
| 5164 | 7275 { |
| 7276 double rcond; | |
| 7277 return solve (b, info, rcond, 0); | |
| 7278 } | |
| 7279 | |
| 7280 ComplexColumnVector | |
|
11586
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|
7281 SparseMatrix::solve (const ComplexColumnVector& b, octave_idx_type& info, |
|
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|
7282 double& rcond) const |
| 5164 | 7283 { |
| 7284 return solve (b, info, rcond, 0); | |
| 7285 } | |
| 7286 | |
| 7287 ComplexColumnVector | |
| 5275 | 7288 SparseMatrix::solve (const ComplexColumnVector& b, octave_idx_type& info, double& rcond, |
|
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|
7289 solve_singularity_handler sing_handler) const |
| 5164 | 7290 { |
| 7291 ComplexMatrix tmp (b); | |
| 5275 | 7292 return solve (tmp, info, rcond, sing_handler).column (static_cast<octave_idx_type> (0)); |
| 5164 | 7293 } |
| 7294 | |
| 7295 // other operations. | |
| 7296 | |
| 7297 bool | |
| 7298 SparseMatrix::any_element_is_negative (bool neg_zero) const | |
| 7299 { | |
| 5681 | 7300 octave_idx_type nel = nnz (); |
| 5164 | 7301 |
| 7302 if (neg_zero) | |
| 7303 { | |
| 5275 | 7304 for (octave_idx_type i = 0; i < nel; i++) |
|
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changeset
|
7305 if (lo_ieee_signbit (data (i))) |
|
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John W. Eaton <jwe@octave.org>
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changeset
|
7306 return true; |
| 5164 | 7307 } |
| 7308 else | |
| 7309 { | |
| 5275 | 7310 for (octave_idx_type i = 0; i < nel; i++) |
|
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untabify liboctave C++ sources
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changeset
|
7311 if (data (i) < 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
7312 return true; |
| 5164 | 7313 } |
| 7314 | |
| 7315 return false; | |
| 7316 } | |
| 7317 | |
| 7318 bool | |
|
7922
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7319 SparseMatrix::any_element_is_nan (void) const |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7320 { |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7321 octave_idx_type nel = nnz (); |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7322 |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7323 for (octave_idx_type i = 0; i < nel; i++) |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7324 { |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7325 double val = data (i); |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7326 if (xisnan (val)) |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
7327 return true; |
|
7922
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7328 } |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7329 |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7330 return false; |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7331 } |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7332 |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7333 bool |
| 5164 | 7334 SparseMatrix::any_element_is_inf_or_nan (void) const |
| 7335 { | |
| 5681 | 7336 octave_idx_type nel = nnz (); |
| 5275 | 7337 |
| 7338 for (octave_idx_type i = 0; i < nel; i++) | |
| 5164 | 7339 { |
| 7340 double val = data (i); | |
| 7341 if (xisinf (val) || xisnan (val)) | |
|
10314
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
7342 return true; |
| 5164 | 7343 } |
| 7344 | |
| 7345 return false; | |
| 7346 } | |
| 7347 | |
| 7348 bool | |
|
9852
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7349 SparseMatrix::any_element_not_one_or_zero (void) const |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7350 { |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
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9812
diff
changeset
|
7351 octave_idx_type nel = nnz (); |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
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9812
diff
changeset
|
7352 |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
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9812
diff
changeset
|
7353 for (octave_idx_type i = 0; i < nel; i++) |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
7354 { |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7355 double val = data (i); |
|
aabf7a8c2e57
implement sparse logical conversion
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diff
changeset
|
7356 if (val != 0.0 && val != 1.0) |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
7357 return true; |
|
9852
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7358 } |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7359 |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
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9812
diff
changeset
|
7360 return false; |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7361 } |
|
aabf7a8c2e57
implement sparse logical conversion
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9812
diff
changeset
|
7362 |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
7363 bool |
| 6989 | 7364 SparseMatrix::all_elements_are_zero (void) const |
| 7365 { | |
| 7366 octave_idx_type nel = nnz (); | |
| 7367 | |
| 7368 for (octave_idx_type i = 0; i < nel; i++) | |
| 7369 if (data (i) != 0) | |
| 7370 return false; | |
| 7371 | |
| 7372 return true; | |
| 7373 } | |
| 7374 | |
| 7375 bool | |
| 5164 | 7376 SparseMatrix::all_elements_are_int_or_inf_or_nan (void) const |
| 7377 { | |
| 5681 | 7378 octave_idx_type nel = nnz (); |
| 5275 | 7379 |
| 7380 for (octave_idx_type i = 0; i < nel; i++) | |
| 5164 | 7381 { |
| 7382 double val = data (i); | |
| 7383 if (xisnan (val) || D_NINT (val) == val) | |
|
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changeset
|
7384 continue; |
| 5164 | 7385 else |
|
10314
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diff
changeset
|
7386 return false; |
| 5164 | 7387 } |
| 7388 | |
| 7389 return true; | |
| 7390 } | |
| 7391 | |
| 7392 // Return nonzero if any element of M is not an integer. Also extract | |
| 7393 // the largest and smallest values and return them in MAX_VAL and MIN_VAL. | |
| 7394 | |
| 7395 bool | |
| 7396 SparseMatrix::all_integers (double& max_val, double& min_val) const | |
| 7397 { | |
| 5681 | 7398 octave_idx_type nel = nnz (); |
| 5164 | 7399 |
| 7400 if (nel == 0) | |
| 7401 return false; | |
| 7402 | |
| 7403 max_val = data (0); | |
| 7404 min_val = data (0); | |
| 7405 | |
| 5275 | 7406 for (octave_idx_type i = 0; i < nel; i++) |
| 5164 | 7407 { |
| 7408 double val = data (i); | |
| 7409 | |
| 7410 if (val > max_val) | |
|
10314
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changeset
|
7411 max_val = val; |
| 5164 | 7412 |
| 7413 if (val < min_val) | |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
7414 min_val = val; |
| 5164 | 7415 |
| 7416 if (D_NINT (val) != val) | |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
7417 return false; |
| 5164 | 7418 } |
| 7419 | |
| 7420 return true; | |
| 7421 } | |
| 7422 | |
| 7423 bool | |
| 7424 SparseMatrix::too_large_for_float (void) const | |
| 7425 { | |
|
15212
4bbd3bbb8912
reduce code duplication in too_large_for_float array functions
John W. Eaton <jwe@octave.org>
parents:
15018
diff
changeset
|
7426 return test_any (xtoo_large_for_float); |
| 5164 | 7427 } |
| 7428 | |
|
11586
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diff
changeset
|
7429 SparseBoolMatrix |
|
12df7854fa7c
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diff
changeset
|
7430 SparseMatrix::operator ! (void) const |
|
12df7854fa7c
strip trailing whitespace from source files
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diff
changeset
|
7431 { |
|
11130
7c573eb981eb
consistently give error for operator not applied to NaN values
John W. Eaton <jwe@octave.org>
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10785
diff
changeset
|
7432 if (any_element_is_nan ()) |
|
7c573eb981eb
consistently give error for operator not applied to NaN values
John W. Eaton <jwe@octave.org>
parents:
10785
diff
changeset
|
7433 gripe_nan_to_logical_conversion (); |
|
7c573eb981eb
consistently give error for operator not applied to NaN values
John W. Eaton <jwe@octave.org>
parents:
10785
diff
changeset
|
7434 |
| 5275 | 7435 octave_idx_type nr = rows (); |
| 7436 octave_idx_type nc = cols (); | |
| 5681 | 7437 octave_idx_type nz1 = nnz (); |
| 5275 | 7438 octave_idx_type nz2 = nr*nc - nz1; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7439 |
| 5164 | 7440 SparseBoolMatrix r (nr, nc, nz2); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7441 |
| 5275 | 7442 octave_idx_type ii = 0; |
| 7443 octave_idx_type jj = 0; | |
| 5164 | 7444 r.cidx (0) = 0; |
| 5275 | 7445 for (octave_idx_type i = 0; i < nc; i++) |
| 5164 | 7446 { |
| 5275 | 7447 for (octave_idx_type j = 0; j < nr; j++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7448 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7449 if (jj < cidx (i+1) && ridx (jj) == j) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7450 jj++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7451 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7452 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7453 r.data (ii) = true; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7454 r.ridx (ii++) = j; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7455 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7456 } |
| 5164 | 7457 r.cidx (i+1) = ii; |
| 7458 } | |
| 7459 | |
| 7460 return r; | |
| 7461 } | |
| 7462 | |
| 5775 | 7463 // FIXME Do these really belong here? Maybe they should be |
| 5164 | 7464 // in a base class? |
| 7465 | |
| 7466 SparseBoolMatrix | |
| 7467 SparseMatrix::all (int dim) const | |
| 7468 { | |
| 7469 SPARSE_ALL_OP (dim); | |
| 7470 } | |
| 7471 | |
| 7472 SparseBoolMatrix | |
| 7473 SparseMatrix::any (int dim) const | |
| 7474 { | |
| 7475 SPARSE_ANY_OP (dim); | |
| 7476 } | |
| 7477 | |
| 7478 SparseMatrix | |
| 7479 SparseMatrix::cumprod (int dim) const | |
| 7480 { | |
| 7481 SPARSE_CUMPROD (SparseMatrix, double, cumprod); | |
| 7482 } | |
| 7483 | |
| 7484 SparseMatrix | |
| 7485 SparseMatrix::cumsum (int dim) const | |
| 7486 { | |
| 7487 SPARSE_CUMSUM (SparseMatrix, double, cumsum); | |
| 7488 } | |
| 7489 | |
| 7490 SparseMatrix | |
| 7491 SparseMatrix::prod (int dim) const | |
| 7492 { | |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
7493 if ((rows () == 1 && dim == -1) || dim == 1) |
|
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
7494 return transpose (). prod (0). transpose (); |
| 7269 | 7495 else |
| 7496 { | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7497 SPARSE_REDUCTION_OP (SparseMatrix, double, *=, |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7498 (cidx (j+1) - cidx (j) < nr ? 0.0 : 1.0), 1.0); |
| 7269 | 7499 } |
| 5164 | 7500 } |
| 7501 | |
| 7502 SparseMatrix | |
| 7503 SparseMatrix::sum (int dim) const | |
| 7504 { | |
| 7505 SPARSE_REDUCTION_OP (SparseMatrix, double, +=, 0.0, 0.0); | |
| 7506 } | |
| 7507 | |
| 7508 SparseMatrix | |
| 7509 SparseMatrix::sumsq (int dim) const | |
| 7510 { | |
| 7511 #define ROW_EXPR \ | |
| 7269 | 7512 double d = data (i); \ |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7513 tmp[ridx (i)] += d * d |
| 5164 | 7514 |
| 7515 #define COL_EXPR \ | |
| 7269 | 7516 double d = data (i); \ |
| 5164 | 7517 tmp[j] += d * d |
| 7518 | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7519 SPARSE_BASE_REDUCTION_OP (SparseMatrix, double, ROW_EXPR, COL_EXPR, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7520 0.0, 0.0); |
| 5164 | 7521 |
| 7522 #undef ROW_EXPR | |
| 7523 #undef COL_EXPR | |
| 7524 } | |
| 7525 | |
| 7526 SparseMatrix | |
| 7527 SparseMatrix::abs (void) const | |
| 7528 { | |
| 5681 | 7529 octave_idx_type nz = nnz (); |
| 5164 | 7530 |
| 7531 SparseMatrix retval (*this); | |
| 7532 | |
| 5275 | 7533 for (octave_idx_type i = 0; i < nz; i++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7534 retval.data (i) = fabs (retval.data (i)); |
| 5164 | 7535 |
| 7536 return retval; | |
| 7537 } | |
| 7538 | |
| 7539 SparseMatrix | |
| 5275 | 7540 SparseMatrix::diag (octave_idx_type k) const |
| 5164 | 7541 { |
|
7620
36594d5bbe13
Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents:
7602
diff
changeset
|
7542 return MSparse<double>::diag (k); |
| 5164 | 7543 } |
| 7544 | |
| 7545 Matrix | |
| 7546 SparseMatrix::matrix_value (void) const | |
| 7547 { | |
|
10431
5dd7a7bf4950
simplify sparse->full conversions in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents:
10421
diff
changeset
|
7548 return Sparse<double>::array_value (); |
| 5164 | 7549 } |
| 7550 | |
| 7551 std::ostream& | |
| 7552 operator << (std::ostream& os, const SparseMatrix& a) | |
| 7553 { | |
| 5275 | 7554 octave_idx_type nc = a.cols (); |
| 5164 | 7555 |
| 7556 // add one to the printed indices to go from | |
| 7557 // zero-based to one-based arrays | |
| 10550 | 7558 for (octave_idx_type j = 0; j < nc; j++) |
| 7559 { | |
| 7560 octave_quit (); | |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7561 for (octave_idx_type i = a.cidx (j); i < a.cidx (j+1); i++) |
| 10550 | 7562 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7563 os << a.ridx (i) + 1 << " " << j + 1 << " "; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7564 octave_write_double (os, a.data (i)); |
| 10550 | 7565 os << "\n"; |
| 7566 } | |
| 7567 } | |
| 5164 | 7568 |
| 7569 return os; | |
| 7570 } | |
| 7571 | |
| 7572 std::istream& | |
| 7573 operator >> (std::istream& is, SparseMatrix& a) | |
| 7574 { | |
|
9469
c6edba80dfae
sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents:
9417
diff
changeset
|
7575 typedef SparseMatrix::element_type elt_type; |
|
c6edba80dfae
sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents:
9417
diff
changeset
|
7576 |
|
c6edba80dfae
sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents:
9417
diff
changeset
|
7577 return read_sparse_matrix<elt_type> (is, a, octave_read_value<double>); |
| 5164 | 7578 } |
| 7579 | |
| 7580 SparseMatrix | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7581 SparseMatrix::squeeze (void) const |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7582 { |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7583 return MSparse<double>::squeeze (); |
| 5164 | 7584 } |
| 7585 | |
| 7586 SparseMatrix | |
| 7587 SparseMatrix::reshape (const dim_vector& new_dims) const | |
| 7588 { | |
| 7589 return MSparse<double>::reshape (new_dims); | |
| 7590 } | |
| 7591 | |
| 7592 SparseMatrix | |
| 5275 | 7593 SparseMatrix::permute (const Array<octave_idx_type>& vec, bool inv) const |
| 5164 | 7594 { |
| 7595 return MSparse<double>::permute (vec, inv); | |
| 7596 } | |
| 7597 | |
| 7598 SparseMatrix | |
| 5275 | 7599 SparseMatrix::ipermute (const Array<octave_idx_type>& vec) const |
| 5164 | 7600 { |
| 7601 return MSparse<double>::ipermute (vec); | |
| 7602 } | |
| 7603 | |
| 7604 // matrix by matrix -> matrix operations | |
| 7605 | |
| 7606 SparseMatrix | |
| 7607 operator * (const SparseMatrix& m, const SparseMatrix& a) | |
| 7608 { | |
| 5681 | 7609 SPARSE_SPARSE_MUL (SparseMatrix, double, double); |
| 5164 | 7610 } |
| 7611 | |
| 5429 | 7612 Matrix |
| 7613 operator * (const Matrix& m, const SparseMatrix& a) | |
| 7614 { | |
| 5681 | 7615 FULL_SPARSE_MUL (Matrix, double, 0.); |
| 5429 | 7616 } |
| 7617 | |
| 7618 Matrix | |
|
7802
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7619 mul_trans (const Matrix& m, const SparseMatrix& a) |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7620 { |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7621 FULL_SPARSE_MUL_TRANS (Matrix, double, 0., ); |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7622 } |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7623 |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7624 Matrix |
| 5429 | 7625 operator * (const SparseMatrix& m, const Matrix& a) |
| 7626 { | |
| 5681 | 7627 SPARSE_FULL_MUL (Matrix, double, 0.); |
| 5429 | 7628 } |
| 7629 | |
|
7802
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7630 Matrix |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7631 trans_mul (const SparseMatrix& m, const Matrix& a) |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7632 { |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7633 SPARSE_FULL_TRANS_MUL (Matrix, double, 0., ); |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7634 } |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7635 |
|
8964
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7636 // diag * sparse and sparse * diag |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7637 |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7638 SparseMatrix |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7639 operator * (const DiagMatrix& d, const SparseMatrix& a) |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7640 { |
|
8967
5bbbf482909a
fix omissions adjusting JR's patches
Jaroslav Hajek <highegg@gmail.com>
parents:
8966
diff
changeset
|
7641 return do_mul_dm_sm<SparseMatrix> (d, a); |
|
8964
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7642 } |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7643 |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7644 SparseMatrix |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7645 operator * (const SparseMatrix& a, const DiagMatrix& d) |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7646 { |
|
8967
5bbbf482909a
fix omissions adjusting JR's patches
Jaroslav Hajek <highegg@gmail.com>
parents:
8966
diff
changeset
|
7647 return do_mul_sm_dm<SparseMatrix> (a, d); |
|
8964
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7648 } |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7649 |
|
8966
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7650 SparseMatrix |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7651 operator + (const DiagMatrix& d, const SparseMatrix& a) |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7652 { |
|
8967
5bbbf482909a
fix omissions adjusting JR's patches
Jaroslav Hajek <highegg@gmail.com>
parents:
8966
diff
changeset
|
7653 return do_add_dm_sm<SparseMatrix> (d, a); |
|
8966
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7654 } |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7655 |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7656 SparseMatrix |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7657 operator - (const DiagMatrix& d, const SparseMatrix& a) |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7658 { |
|
8967
5bbbf482909a
fix omissions adjusting JR's patches
Jaroslav Hajek <highegg@gmail.com>
parents:
8966
diff
changeset
|
7659 return do_sub_dm_sm<SparseMatrix> (d, a); |
|
8966
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7660 } |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7661 |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7662 SparseMatrix |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7663 operator + (const SparseMatrix& a, const DiagMatrix& d) |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7664 { |
|
8967
5bbbf482909a
fix omissions adjusting JR's patches
Jaroslav Hajek <highegg@gmail.com>
parents:
8966
diff
changeset
|
7665 return do_add_sm_dm<SparseMatrix> (a, d); |
|
8966
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7666 } |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7667 |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7668 SparseMatrix |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7669 operator - (const SparseMatrix& a, const DiagMatrix& d) |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7670 { |
|
8967
5bbbf482909a
fix omissions adjusting JR's patches
Jaroslav Hajek <highegg@gmail.com>
parents:
8966
diff
changeset
|
7671 return do_sub_sm_dm<SparseMatrix> (a, d); |
|
8966
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7672 } |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7673 |
|
8968
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7674 // perm * sparse and sparse * perm |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7675 |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7676 SparseMatrix |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7677 operator * (const PermMatrix& p, const SparseMatrix& a) |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7678 { |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7679 return octinternal_do_mul_pm_sm (p, a); |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7680 } |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7681 |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7682 SparseMatrix |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7683 operator * (const SparseMatrix& a, const PermMatrix& p) |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7684 { |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7685 return octinternal_do_mul_sm_pm (a, p); |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7686 } |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7687 |
| 5775 | 7688 // FIXME -- it would be nice to share code among the min/max |
| 5164 | 7689 // functions below. |
| 7690 | |
| 7691 #define EMPTY_RETURN_CHECK(T) \ | |
| 7692 if (nr == 0 || nc == 0) \ | |
| 7693 return T (nr, nc); | |
| 7694 | |
| 7695 SparseMatrix | |
| 7696 min (double d, const SparseMatrix& m) | |
| 7697 { | |
| 7698 SparseMatrix result; | |
| 7699 | |
| 5275 | 7700 octave_idx_type nr = m.rows (); |
| 7701 octave_idx_type nc = m.columns (); | |
| 5164 | 7702 |
| 7703 EMPTY_RETURN_CHECK (SparseMatrix); | |
| 7704 | |
| 7705 // Count the number of non-zero elements | |
| 7706 if (d < 0.) | |
| 7707 { | |
| 7708 result = SparseMatrix (nr, nc, d); | |
| 5275 | 7709 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7710 for (octave_idx_type i = m.cidx (j); i < m.cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7711 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7712 double tmp = xmin (d, m.data (i)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7713 if (tmp != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7714 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7715 octave_idx_type idx = m.ridx (i) + j * nr; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7716 result.xdata (idx) = tmp; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7717 result.xridx (idx) = m.ridx (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7718 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7719 } |
| 5164 | 7720 } |
| 7721 else | |
| 7722 { | |
| 5275 | 7723 octave_idx_type nel = 0; |
| 7724 for (octave_idx_type j = 0; j < nc; j++) | |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7725 for (octave_idx_type i = m.cidx (j); i < m.cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7726 if (xmin (d, m.data (i)) != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7727 nel++; |
| 5164 | 7728 |
| 7729 result = SparseMatrix (nr, nc, nel); | |
| 7730 | |
| 5275 | 7731 octave_idx_type ii = 0; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7732 result.xcidx (0) = 0; |
| 5275 | 7733 for (octave_idx_type j = 0; j < nc; j++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7734 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7735 for (octave_idx_type i = m.cidx (j); i < m.cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7736 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7737 double tmp = xmin (d, m.data (i)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7738 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7739 if (tmp != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7740 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7741 result.xdata (ii) = tmp; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7742 result.xridx (ii++) = m.ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7743 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7744 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7745 result.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7746 } |
| 5164 | 7747 } |
| 7748 | |
| 7749 return result; | |
| 7750 } | |
| 7751 | |
| 7752 SparseMatrix | |
| 7753 min (const SparseMatrix& m, double d) | |
| 7754 { | |
| 7755 return min (d, m); | |
| 7756 } | |
| 7757 | |
| 7758 SparseMatrix | |
| 7759 min (const SparseMatrix& a, const SparseMatrix& b) | |
| 7760 { | |
| 7761 SparseMatrix r; | |
| 7762 | |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
7763 if ((a.rows () == b.rows ()) && (a.cols () == b.cols ())) |
| 5164 | 7764 { |
| 5275 | 7765 octave_idx_type a_nr = a.rows (); |
| 7766 octave_idx_type a_nc = a.cols (); | |
| 7767 | |
| 7768 octave_idx_type b_nr = b.rows (); | |
| 7769 octave_idx_type b_nc = b.cols (); | |
| 5164 | 7770 |
| 7771 if (a_nr != b_nr || a_nc != b_nc) | |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7772 gripe_nonconformant ("min", a_nr, a_nc, b_nr, b_nc); |
| 5164 | 7773 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7774 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7775 r = SparseMatrix (a_nr, a_nc, (a.nnz () + b.nnz ())); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7776 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7777 octave_idx_type jx = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7778 r.cidx (0) = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7779 for (octave_idx_type i = 0 ; i < a_nc ; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7780 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7781 octave_idx_type ja = a.cidx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7782 octave_idx_type ja_max = a.cidx (i+1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7783 bool ja_lt_max= ja < ja_max; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7784 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7785 octave_idx_type jb = b.cidx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7786 octave_idx_type jb_max = b.cidx (i+1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7787 bool jb_lt_max = jb < jb_max; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7788 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7789 while (ja_lt_max || jb_lt_max ) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7790 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7791 octave_quit (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7792 if ((! jb_lt_max) || |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7793 (ja_lt_max && (a.ridx (ja) < b.ridx (jb)))) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7794 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7795 double tmp = xmin (a.data (ja), 0.); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7796 if (tmp != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7797 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7798 r.ridx (jx) = a.ridx (ja); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7799 r.data (jx) = tmp; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7800 jx++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7801 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7802 ja++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7803 ja_lt_max= ja < ja_max; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7804 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7805 else if (( !ja_lt_max ) || |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7806 (jb_lt_max && (b.ridx (jb) < a.ridx (ja)) ) ) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7807 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7808 double tmp = xmin (0., b.data (jb)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7809 if (tmp != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7810 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7811 r.ridx (jx) = b.ridx (jb); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7812 r.data (jx) = tmp; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7813 jx++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7814 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7815 jb++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7816 jb_lt_max= jb < jb_max; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7817 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7818 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7819 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7820 double tmp = xmin (a.data (ja), b.data (jb)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7821 if (tmp != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7822 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7823 r.data (jx) = tmp; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7824 r.ridx (jx) = a.ridx (ja); |
| 5164 | 7825 jx++; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7826 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7827 ja++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7828 ja_lt_max= ja < ja_max; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7829 jb++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7830 jb_lt_max= jb < jb_max; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7831 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7832 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7833 r.cidx (i+1) = jx; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7834 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7835 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7836 r.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7837 } |
| 5164 | 7838 } |
| 7839 else | |
| 7840 (*current_liboctave_error_handler) ("matrix size mismatch"); | |
| 7841 | |
| 7842 return r; | |
| 7843 } | |
| 7844 | |
| 7845 SparseMatrix | |
| 7846 max (double d, const SparseMatrix& m) | |
| 7847 { | |
| 7848 SparseMatrix result; | |
| 7849 | |
| 5275 | 7850 octave_idx_type nr = m.rows (); |
| 7851 octave_idx_type nc = m.columns (); | |
| 5164 | 7852 |
| 7853 EMPTY_RETURN_CHECK (SparseMatrix); | |
| 7854 | |
| 7855 // Count the number of non-zero elements | |
| 7856 if (d > 0.) | |
| 7857 { | |
| 7858 result = SparseMatrix (nr, nc, d); | |
| 5275 | 7859 for (octave_idx_type j = 0; j < nc; j++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7860 for (octave_idx_type i = m.cidx (j); i < m.cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7861 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7862 double tmp = xmax (d, m.data (i)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7863 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7864 if (tmp != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7865 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7866 octave_idx_type idx = m.ridx (i) + j * nr; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7867 result.xdata (idx) = tmp; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7868 result.xridx (idx) = m.ridx (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7869 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7870 } |
| 5164 | 7871 } |
| 7872 else | |
| 7873 { | |
| 5275 | 7874 octave_idx_type nel = 0; |
| 7875 for (octave_idx_type j = 0; j < nc; j++) | |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7876 for (octave_idx_type i = m.cidx (j); i < m.cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7877 if (xmax (d, m.data (i)) != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7878 nel++; |
| 5164 | 7879 |
| 7880 result = SparseMatrix (nr, nc, nel); | |
| 7881 | |
| 5275 | 7882 octave_idx_type ii = 0; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7883 result.xcidx (0) = 0; |
| 5275 | 7884 for (octave_idx_type j = 0; j < nc; j++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7885 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7886 for (octave_idx_type i = m.cidx (j); i < m.cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7887 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7888 double tmp = xmax (d, m.data (i)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7889 if (tmp != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7890 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7891 result.xdata (ii) = tmp; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7892 result.xridx (ii++) = m.ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7893 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7894 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7895 result.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7896 } |
| 5164 | 7897 } |
| 7898 | |
| 7899 return result; | |
| 7900 } | |
| 7901 | |
| 7902 SparseMatrix | |
| 7903 max (const SparseMatrix& m, double d) | |
| 7904 { | |
| 7905 return max (d, m); | |
| 7906 } | |
| 7907 | |
| 7908 SparseMatrix | |
| 7909 max (const SparseMatrix& a, const SparseMatrix& b) | |
| 7910 { | |
| 7911 SparseMatrix r; | |
| 7912 | |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
7913 if ((a.rows () == b.rows ()) && (a.cols () == b.cols ())) |
| 5164 | 7914 { |
| 5275 | 7915 octave_idx_type a_nr = a.rows (); |
| 7916 octave_idx_type a_nc = a.cols (); | |
| 7917 | |
| 7918 octave_idx_type b_nr = b.rows (); | |
| 7919 octave_idx_type b_nc = b.cols (); | |
| 5164 | 7920 |
| 7921 if (a_nr != b_nr || a_nc != b_nc) | |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7922 gripe_nonconformant ("min", a_nr, a_nc, b_nr, b_nc); |
| 5164 | 7923 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7924 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7925 r = SparseMatrix (a_nr, a_nc, (a.nnz () + b.nnz ())); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7926 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7927 octave_idx_type jx = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7928 r.cidx (0) = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7929 for (octave_idx_type i = 0 ; i < a_nc ; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7930 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7931 octave_idx_type ja = a.cidx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7932 octave_idx_type ja_max = a.cidx (i+1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7933 bool ja_lt_max= ja < ja_max; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7934 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7935 octave_idx_type jb = b.cidx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7936 octave_idx_type jb_max = b.cidx (i+1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7937 bool jb_lt_max = jb < jb_max; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7938 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7939 while (ja_lt_max || jb_lt_max ) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7940 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7941 octave_quit (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7942 if ((! jb_lt_max) || |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7943 (ja_lt_max && (a.ridx (ja) < b.ridx (jb)))) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7944 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7945 double tmp = xmax (a.data (ja), 0.); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7946 if (tmp != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7947 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7948 r.ridx (jx) = a.ridx (ja); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7949 r.data (jx) = tmp; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7950 jx++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7951 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7952 ja++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7953 ja_lt_max= ja < ja_max; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7954 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7955 else if (( !ja_lt_max ) || |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7956 (jb_lt_max && (b.ridx (jb) < a.ridx (ja)) ) ) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7957 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7958 double tmp = xmax (0., b.data (jb)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7959 if (tmp != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7960 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7961 r.ridx (jx) = b.ridx (jb); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7962 r.data (jx) = tmp; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7963 jx++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7964 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7965 jb++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7966 jb_lt_max= jb < jb_max; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7967 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7968 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7969 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7970 double tmp = xmax (a.data (ja), b.data (jb)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7971 if (tmp != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7972 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7973 r.data (jx) = tmp; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7974 r.ridx (jx) = a.ridx (ja); |
| 5164 | 7975 jx++; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7976 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7977 ja++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7978 ja_lt_max= ja < ja_max; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7979 jb++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7980 jb_lt_max= jb < jb_max; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7981 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7982 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7983 r.cidx (i+1) = jx; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7984 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7985 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7986 r.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7987 } |
| 5164 | 7988 } |
| 7989 else | |
| 7990 (*current_liboctave_error_handler) ("matrix size mismatch"); | |
| 7991 | |
| 7992 return r; | |
| 7993 } | |
| 7994 | |
| 7995 SPARSE_SMS_CMP_OPS (SparseMatrix, 0.0, , double, 0.0, ) | |
| 7996 SPARSE_SMS_BOOL_OPS (SparseMatrix, double, 0.0) | |
| 7997 | |
| 7998 SPARSE_SSM_CMP_OPS (double, 0.0, , SparseMatrix, 0.0, ) | |
| 7999 SPARSE_SSM_BOOL_OPS (double, SparseMatrix, 0.0) | |
| 8000 | |
| 8001 SPARSE_SMSM_CMP_OPS (SparseMatrix, 0.0, , SparseMatrix, 0.0, ) | |
| 8002 SPARSE_SMSM_BOOL_OPS (SparseMatrix, SparseMatrix, 0.0) |