Mercurial > octave-nkf
annotate liboctave/array/dSparse.cc @ 18084:8e056300994b
Follow coding convention of defining and initializing only 1 variable per line in liboctave.
* liboctave/array/Array-b.cc, liboctave/array/Array-util.cc,
liboctave/array/Array.cc, liboctave/array/CDiagMatrix.cc,
liboctave/array/CMatrix.cc, liboctave/array/CSparse.cc,
liboctave/array/MDiagArray2.cc, liboctave/array/MatrixType.cc,
liboctave/array/PermMatrix.cc, liboctave/array/Sparse.cc,
liboctave/array/Sparse.h, liboctave/array/boolSparse.cc,
liboctave/array/dDiagMatrix.cc, liboctave/array/dMatrix.cc,
liboctave/array/dSparse.cc, liboctave/array/dim-vector.cc,
liboctave/array/fCDiagMatrix.cc, liboctave/array/fCMatrix.cc,
liboctave/array/fDiagMatrix.cc, liboctave/array/fMatrix.cc,
liboctave/array/idx-vector.cc, liboctave/array/idx-vector.h,
liboctave/numeric/CmplxLU.cc, liboctave/numeric/CmplxQR.cc,
liboctave/numeric/base-qr.cc, liboctave/numeric/bsxfun-defs.cc,
liboctave/numeric/bsxfun.h, liboctave/numeric/dbleLU.cc,
liboctave/numeric/dbleQR.cc, liboctave/numeric/fCmplxLU.cc,
liboctave/numeric/fCmplxQR.cc, liboctave/numeric/floatLU.cc,
liboctave/numeric/floatQR.cc, liboctave/numeric/lo-specfun.cc,
liboctave/numeric/oct-convn.cc, liboctave/numeric/oct-norm.cc,
liboctave/numeric/sparse-dmsolve.cc, liboctave/operators/mx-inlines.cc,
liboctave/operators/mx-op-defs.h, liboctave/util/caseless-str.h,
liboctave/util/kpse.cc, liboctave/util/lo-utils.cc,
liboctave/util/oct-binmap.h, liboctave/util/oct-cmplx.h,
liboctave/util/oct-inttypes.cc, liboctave/util/oct-inttypes.h,
liboctave/util/oct-sort.cc:
Follow coding convention of defining and initializing only 1 variable per line in liboctave.
| author | Rik <rik@octave.org> |
|---|---|
| date | Wed, 04 Dec 2013 22:13:18 -0800 |
| parents | 938f01339043 |
| children | b3f443b4802b |
| rev | line source |
|---|---|
| 5164 | 1 /* |
| 2 | |
|
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3 Copyright (C) 2004-2013 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; |
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169 octave_idx_type l = a.length (); |
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170 for (octave_idx_type i = 0; i < l; i++) |
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171 { |
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172 cidx (i) = j; |
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173 if (a(i, i) != 0.0) |
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174 { |
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175 data (j) = a(i, i); |
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176 ridx (j) = i; |
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177 j++; |
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178 } |
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179 } |
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180 for (octave_idx_type i = l; i <= a.cols (); i++) |
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181 cidx (i) = j; |
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182 } |
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183 |
| 5164 | 184 bool |
| 185 SparseMatrix::operator == (const SparseMatrix& a) const | |
| 186 { | |
| 5275 | 187 octave_idx_type nr = rows (); |
| 188 octave_idx_type nc = cols (); | |
| 5681 | 189 octave_idx_type nz = nnz (); |
| 5275 | 190 octave_idx_type nr_a = a.rows (); |
| 191 octave_idx_type nc_a = a.cols (); | |
| 5681 | 192 octave_idx_type nz_a = a.nnz (); |
| 5164 | 193 |
| 194 if (nr != nr_a || nc != nc_a || nz != nz_a) | |
| 195 return false; | |
| 196 | |
| 5275 | 197 for (octave_idx_type i = 0; i < nc + 1; i++) |
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198 if (cidx (i) != a.cidx (i)) |
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199 return false; |
| 5164 | 200 |
| 5275 | 201 for (octave_idx_type i = 0; i < nz; i++) |
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202 if (data (i) != a.data (i) || ridx (i) != a.ridx (i)) |
| 5164 | 203 return false; |
| 204 | |
| 205 return true; | |
| 206 } | |
| 207 | |
| 208 bool | |
| 209 SparseMatrix::operator != (const SparseMatrix& a) const | |
| 210 { | |
| 211 return !(*this == a); | |
| 212 } | |
| 213 | |
| 214 bool | |
| 215 SparseMatrix::is_symmetric (void) const | |
| 216 { | |
| 6207 | 217 octave_idx_type nr = rows (); |
| 218 octave_idx_type nc = cols (); | |
| 219 | |
| 220 if (nr == nc && nr > 0) | |
| 5164 | 221 { |
| 6207 | 222 for (octave_idx_type j = 0; j < nc; j++) |
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223 { |
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224 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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225 { |
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226 octave_idx_type ri = ridx (i); |
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227 |
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228 if (ri != j) |
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229 { |
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230 bool found = false; |
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231 |
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232 for (octave_idx_type k = cidx (ri); k < cidx (ri+1); k++) |
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233 { |
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234 if (ridx (k) == j) |
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235 { |
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236 if (data (i) == data (k)) |
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237 found = true; |
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238 break; |
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239 } |
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240 } |
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241 |
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242 if (! found) |
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243 return false; |
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244 } |
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245 } |
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246 } |
| 5164 | 247 |
| 248 return true; | |
| 249 } | |
| 250 | |
| 251 return false; | |
| 252 } | |
| 253 | |
| 254 SparseMatrix& | |
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255 SparseMatrix::insert (const SparseMatrix& a, |
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256 octave_idx_type r, octave_idx_type c) |
| 5164 | 257 { |
| 258 MSparse<double>::insert (a, r, c); | |
| 259 return *this; | |
| 260 } | |
| 261 | |
| 6823 | 262 SparseMatrix& |
| 263 SparseMatrix::insert (const SparseMatrix& a, const Array<octave_idx_type>& indx) | |
| 264 { | |
| 265 MSparse<double>::insert (a, indx); | |
| 266 return *this; | |
| 267 } | |
| 268 | |
| 5164 | 269 SparseMatrix |
| 270 SparseMatrix::max (int dim) const | |
| 271 { | |
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272 Array<octave_idx_type> dummy_idx; |
| 5164 | 273 return max (dummy_idx, dim); |
| 274 } | |
| 275 | |
| 276 SparseMatrix | |
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277 SparseMatrix::max (Array<octave_idx_type>& idx_arg, int dim) const |
| 5164 | 278 { |
| 279 SparseMatrix result; | |
| 280 dim_vector dv = dims (); | |
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281 octave_idx_type nr = dv(0); |
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282 octave_idx_type nc = dv(1); |
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283 |
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284 if (dim >= dv.length ()) |
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285 { |
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286 idx_arg.resize (dim_vector (nr, nc), 0); |
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287 return *this; |
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288 } |
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289 |
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290 if (dim < 0) |
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291 dim = dv.first_non_singleton (); |
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292 |
| 5164 | 293 if (dim == 0) |
| 294 { | |
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295 idx_arg.resize (dim_vector (nr == 0 ? 0 : 1, nc), 0); |
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296 |
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297 if (nr == 0 || nc == 0 || dim >= dv.length ()) |
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298 return SparseMatrix (nr == 0 ? 0 : 1, nc); |
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299 |
| 5275 | 300 octave_idx_type nel = 0; |
| 301 for (octave_idx_type j = 0; j < nc; j++) | |
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302 { |
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303 double tmp_max = octave_NaN; |
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304 octave_idx_type idx_j = 0; |
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305 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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306 { |
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307 if (ridx (i) != idx_j) |
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308 break; |
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309 else |
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310 idx_j++; |
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311 } |
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312 |
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313 if (idx_j != nr) |
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314 tmp_max = 0.; |
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315 |
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316 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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317 { |
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318 double tmp = data (i); |
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319 |
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320 if (xisnan (tmp)) |
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321 continue; |
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322 else if (xisnan (tmp_max) || tmp > tmp_max) |
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323 { |
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324 idx_j = ridx (i); |
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325 tmp_max = tmp; |
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326 } |
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327 |
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328 } |
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329 |
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330 idx_arg.elem (j) = xisnan (tmp_max) ? 0 : idx_j; |
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331 if (tmp_max != 0.) |
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332 nel++; |
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333 } |
| 5164 | 334 |
| 335 result = SparseMatrix (1, nc, nel); | |
| 336 | |
| 5275 | 337 octave_idx_type ii = 0; |
| 5164 | 338 result.xcidx (0) = 0; |
| 5275 | 339 for (octave_idx_type j = 0; j < nc; j++) |
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340 { |
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341 double tmp = elem (idx_arg(j), j); |
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342 if (tmp != 0.) |
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343 { |
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344 result.xdata (ii) = tmp; |
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345 result.xridx (ii++) = 0; |
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346 } |
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347 result.xcidx (j+1) = ii; |
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348 |
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349 } |
| 5164 | 350 } |
| 351 else | |
| 352 { | |
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353 idx_arg.resize (dim_vector (nr, nc == 0 ? 0 : 1), 0); |
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354 |
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355 if (nr == 0 || nc == 0 || dim >= dv.length ()) |
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356 return SparseMatrix (nr, nc == 0 ? 0 : 1); |
| 5164 | 357 |
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358 OCTAVE_LOCAL_BUFFER (octave_idx_type, found, nr); |
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359 |
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360 for (octave_idx_type i = 0; i < nr; i++) |
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361 found[i] = 0; |
| 5164 | 362 |
| 5275 | 363 for (octave_idx_type j = 0; j < nc; j++) |
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364 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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365 if (found[ridx (i)] == -j) |
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366 found[ridx (i)] = -j - 1; |
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367 |
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368 for (octave_idx_type i = 0; i < nr; i++) |
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369 if (found[i] > -nc && found[i] < 0) |
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370 idx_arg.elem (i) = -found[i]; |
| 5164 | 371 |
| 5275 | 372 for (octave_idx_type j = 0; j < nc; j++) |
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373 { |
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374 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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375 { |
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376 octave_idx_type ir = ridx (i); |
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377 octave_idx_type ix = idx_arg.elem (ir); |
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378 double tmp = data (i); |
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379 |
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380 if (xisnan (tmp)) |
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381 continue; |
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382 else if (ix == -1 || tmp > elem (ir, ix)) |
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383 idx_arg.elem (ir) = j; |
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384 } |
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385 } |
| 5164 | 386 |
| 5275 | 387 octave_idx_type nel = 0; |
| 388 for (octave_idx_type j = 0; j < nr; j++) | |
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389 if (idx_arg.elem (j) == -1 || elem (j, idx_arg.elem (j)) != 0.) |
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390 nel++; |
| 5164 | 391 |
| 392 result = SparseMatrix (nr, 1, nel); | |
| 393 | |
| 5275 | 394 octave_idx_type ii = 0; |
| 5164 | 395 result.xcidx (0) = 0; |
| 396 result.xcidx (1) = nel; | |
| 5275 | 397 for (octave_idx_type j = 0; j < nr; j++) |
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398 { |
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399 if (idx_arg(j) == -1) |
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400 { |
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401 idx_arg(j) = 0; |
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402 result.xdata (ii) = octave_NaN; |
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403 result.xridx (ii++) = j; |
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404 } |
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405 else |
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406 { |
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407 double tmp = elem (j, idx_arg(j)); |
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408 if (tmp != 0.) |
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409 { |
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410 result.xdata (ii) = tmp; |
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411 result.xridx (ii++) = j; |
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412 } |
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413 } |
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414 } |
| 5164 | 415 } |
| 416 | |
| 417 return result; | |
| 418 } | |
| 419 | |
| 420 SparseMatrix | |
| 421 SparseMatrix::min (int dim) const | |
| 422 { | |
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423 Array<octave_idx_type> dummy_idx; |
| 5164 | 424 return min (dummy_idx, dim); |
| 425 } | |
| 426 | |
| 427 SparseMatrix | |
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428 SparseMatrix::min (Array<octave_idx_type>& idx_arg, int dim) const |
| 5164 | 429 { |
| 430 SparseMatrix result; | |
| 431 dim_vector dv = dims (); | |
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432 octave_idx_type nr = dv(0); |
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433 octave_idx_type nc = dv(1); |
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434 |
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435 if (dim >= dv.length ()) |
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436 { |
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437 idx_arg.resize (dim_vector (nr, nc), 0); |
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438 return *this; |
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439 } |
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440 |
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441 if (dim < 0) |
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442 dim = dv.first_non_singleton (); |
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443 |
| 5164 | 444 if (dim == 0) |
| 445 { | |
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446 idx_arg.resize (dim_vector (nr == 0 ? 0 : 1, nc), 0); |
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447 |
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448 if (nr == 0 || nc == 0 || dim >= dv.length ()) |
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449 return SparseMatrix (nr == 0 ? 0 : 1, nc); |
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450 |
| 5275 | 451 octave_idx_type nel = 0; |
| 452 for (octave_idx_type j = 0; j < nc; j++) | |
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453 { |
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454 double tmp_min = octave_NaN; |
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455 octave_idx_type idx_j = 0; |
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456 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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457 { |
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458 if (ridx (i) != idx_j) |
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459 break; |
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460 else |
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461 idx_j++; |
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462 } |
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463 |
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464 if (idx_j != nr) |
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465 tmp_min = 0.; |
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466 |
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467 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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468 { |
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469 double tmp = data (i); |
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470 |
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471 if (xisnan (tmp)) |
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472 continue; |
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473 else if (xisnan (tmp_min) || tmp < tmp_min) |
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474 { |
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475 idx_j = ridx (i); |
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476 tmp_min = tmp; |
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477 } |
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478 |
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479 } |
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480 |
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481 idx_arg.elem (j) = xisnan (tmp_min) ? 0 : idx_j; |
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482 if (tmp_min != 0.) |
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483 nel++; |
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484 } |
| 5164 | 485 |
| 486 result = SparseMatrix (1, nc, nel); | |
| 487 | |
| 5275 | 488 octave_idx_type ii = 0; |
| 5164 | 489 result.xcidx (0) = 0; |
| 5275 | 490 for (octave_idx_type j = 0; j < nc; j++) |
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491 { |
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492 double tmp = elem (idx_arg(j), j); |
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493 if (tmp != 0.) |
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494 { |
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495 result.xdata (ii) = tmp; |
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496 result.xridx (ii++) = 0; |
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497 } |
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498 result.xcidx (j+1) = ii; |
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499 |
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500 } |
| 5164 | 501 } |
| 502 else | |
| 503 { | |
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504 idx_arg.resize (dim_vector (nr, nc == 0 ? 0 : 1), 0); |
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505 |
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506 if (nr == 0 || nc == 0 || dim >= dv.length ()) |
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507 return SparseMatrix (nr, nc == 0 ? 0 : 1); |
| 5164 | 508 |
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509 OCTAVE_LOCAL_BUFFER (octave_idx_type, found, nr); |
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510 |
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511 for (octave_idx_type i = 0; i < nr; i++) |
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512 found[i] = 0; |
| 5164 | 513 |
| 5275 | 514 for (octave_idx_type j = 0; j < nc; j++) |
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515 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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516 if (found[ridx (i)] == -j) |
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517 found[ridx (i)] = -j - 1; |
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518 |
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519 for (octave_idx_type i = 0; i < nr; i++) |
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520 if (found[i] > -nc && found[i] < 0) |
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521 idx_arg.elem (i) = -found[i]; |
| 5164 | 522 |
| 5275 | 523 for (octave_idx_type j = 0; j < nc; j++) |
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524 { |
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525 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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526 { |
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527 octave_idx_type ir = ridx (i); |
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528 octave_idx_type ix = idx_arg.elem (ir); |
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529 double tmp = data (i); |
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530 |
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531 if (xisnan (tmp)) |
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532 continue; |
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533 else if (ix == -1 || tmp < elem (ir, ix)) |
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534 idx_arg.elem (ir) = j; |
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535 } |
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536 } |
| 5164 | 537 |
| 5275 | 538 octave_idx_type nel = 0; |
| 539 for (octave_idx_type j = 0; j < nr; j++) | |
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540 if (idx_arg.elem (j) == -1 || elem (j, idx_arg.elem (j)) != 0.) |
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541 nel++; |
| 5164 | 542 |
| 543 result = SparseMatrix (nr, 1, nel); | |
| 544 | |
| 5275 | 545 octave_idx_type ii = 0; |
| 5164 | 546 result.xcidx (0) = 0; |
| 547 result.xcidx (1) = nel; | |
| 5275 | 548 for (octave_idx_type j = 0; j < nr; j++) |
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549 { |
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550 if (idx_arg(j) == -1) |
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551 { |
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552 idx_arg(j) = 0; |
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553 result.xdata (ii) = octave_NaN; |
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554 result.xridx (ii++) = j; |
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555 } |
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556 else |
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557 { |
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558 double tmp = elem (j, idx_arg(j)); |
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559 if (tmp != 0.) |
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560 { |
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561 result.xdata (ii) = tmp; |
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562 result.xridx (ii++) = j; |
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563 } |
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564 } |
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565 } |
| 5164 | 566 } |
| 567 | |
| 568 return result; | |
| 569 } | |
| 570 | |
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571 /* |
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572 |
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573 %!assert (max (max (speye (65536))), sparse (1)) |
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574 %!assert (min (min (speye (65536))), sparse (0)) |
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575 %!assert (size (max (sparse (8, 0), [], 1)), [1, 0]) |
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576 %!assert (size (max (sparse (8, 0), [], 2)), [8, 0]) |
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577 %!assert (size (max (sparse (0, 8), [], 1)), [0, 8]) |
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578 %!assert (size (max (sparse (0, 8), [], 2)), [0, 1]) |
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579 %!assert (size (min (sparse (8, 0), [], 1)), [1, 0]) |
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580 %!assert (size (min (sparse (8, 0), [], 2)), [8, 0]) |
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581 %!assert (size (min (sparse (0, 8), [], 1)), [0, 8]) |
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582 %!assert (size (min (sparse (0, 8), [], 2)), [0, 1]) |
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583 |
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584 */ |
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585 |
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586 RowVector |
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587 SparseMatrix::row (octave_idx_type i) const |
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588 { |
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589 octave_idx_type nc = columns (); |
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590 RowVector retval (nc, 0); |
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591 |
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592 for (octave_idx_type j = 0; j < nc; j++) |
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593 for (octave_idx_type k = cidx (j); k < cidx (j+1); k++) |
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594 { |
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595 if (ridx (k) == i) |
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596 { |
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597 retval(j) = data (k); |
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598 break; |
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599 } |
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600 } |
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601 |
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602 return retval; |
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603 } |
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604 |
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605 ColumnVector |
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606 SparseMatrix::column (octave_idx_type i) const |
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607 { |
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608 octave_idx_type nr = rows (); |
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609 ColumnVector retval (nr, 0); |
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610 |
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611 for (octave_idx_type k = cidx (i); k < cidx (i+1); k++) |
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612 retval(ridx (k)) = data (k); |
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613 |
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614 return retval; |
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615 } |
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616 |
| 5164 | 617 SparseMatrix |
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618 SparseMatrix::concat (const SparseMatrix& rb, |
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619 const Array<octave_idx_type>& ra_idx) |
| 5164 | 620 { |
| 621 // Don't use numel to avoid all possiblity of an overflow | |
| 622 if (rb.rows () > 0 && rb.cols () > 0) | |
| 623 insert (rb, ra_idx(0), ra_idx(1)); | |
| 624 return *this; | |
| 625 } | |
| 626 | |
| 627 SparseComplexMatrix | |
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628 SparseMatrix::concat (const SparseComplexMatrix& rb, |
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629 const Array<octave_idx_type>& ra_idx) |
| 5164 | 630 { |
| 631 SparseComplexMatrix retval (*this); | |
| 632 if (rb.rows () > 0 && rb.cols () > 0) | |
| 633 retval.insert (rb, ra_idx(0), ra_idx(1)); | |
| 634 return retval; | |
| 635 } | |
| 636 | |
| 637 SparseMatrix | |
| 638 real (const SparseComplexMatrix& a) | |
| 639 { | |
| 5275 | 640 octave_idx_type nr = a.rows (); |
| 641 octave_idx_type nc = a.cols (); | |
| 5681 | 642 octave_idx_type nz = a.nnz (); |
| 5164 | 643 SparseMatrix r (nr, nc, nz); |
| 644 | |
| 5275 | 645 for (octave_idx_type i = 0; i < nc +1; i++) |
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646 r.cidx (i) = a.cidx (i); |
| 5164 | 647 |
| 5275 | 648 for (octave_idx_type i = 0; i < nz; i++) |
| 5164 | 649 { |
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650 r.data (i) = std::real (a.data (i)); |
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651 r.ridx (i) = a.ridx (i); |
| 5164 | 652 } |
| 653 | |
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654 r.maybe_compress (true); |
| 5164 | 655 return r; |
| 656 } | |
| 657 | |
| 658 SparseMatrix | |
| 659 imag (const SparseComplexMatrix& a) | |
| 660 { | |
| 5275 | 661 octave_idx_type nr = a.rows (); |
| 662 octave_idx_type nc = a.cols (); | |
| 5681 | 663 octave_idx_type nz = a.nnz (); |
| 5164 | 664 SparseMatrix r (nr, nc, nz); |
| 665 | |
| 5275 | 666 for (octave_idx_type i = 0; i < nc +1; i++) |
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667 r.cidx (i) = a.cidx (i); |
| 5164 | 668 |
| 5275 | 669 for (octave_idx_type i = 0; i < nz; i++) |
| 5164 | 670 { |
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671 r.data (i) = std::imag (a.data (i)); |
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672 r.ridx (i) = a.ridx (i); |
| 5164 | 673 } |
| 674 | |
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675 r.maybe_compress (true); |
| 5164 | 676 return r; |
| 677 } | |
| 678 | |
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679 /* |
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680 |
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681 %!assert (nnz (real (sparse ([1i,1]))), 1) |
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682 %!assert (nnz (real (sparse ([1i,1]))), 1) |
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683 |
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684 */ |
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685 |
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686 SparseMatrix |
| 5164 | 687 atan2 (const double& x, const SparseMatrix& y) |
| 688 { | |
| 5275 | 689 octave_idx_type nr = y.rows (); |
| 690 octave_idx_type nc = y.cols (); | |
| 5164 | 691 |
| 692 if (x == 0.) | |
| 693 return SparseMatrix (nr, nc); | |
| 694 else | |
| 695 { | |
| 696 // Its going to be basically full, so this is probably the | |
| 697 // best way to handle it. | |
| 698 Matrix tmp (nr, nc, atan2 (x, 0.)); | |
| 699 | |
| 5275 | 700 for (octave_idx_type j = 0; j < nc; j++) |
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701 for (octave_idx_type i = y.cidx (j); i < y.cidx (j+1); i++) |
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702 tmp.elem (y.ridx (i), j) = atan2 (x, y.data (i)); |
| 5164 | 703 |
| 704 return SparseMatrix (tmp); | |
| 705 } | |
| 706 } | |
| 707 | |
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708 SparseMatrix |
| 5164 | 709 atan2 (const SparseMatrix& x, const double& y) |
| 710 { | |
| 5275 | 711 octave_idx_type nr = x.rows (); |
| 712 octave_idx_type nc = x.cols (); | |
| 5681 | 713 octave_idx_type nz = x.nnz (); |
| 5164 | 714 |
| 715 SparseMatrix retval (nr, nc, nz); | |
| 716 | |
| 5275 | 717 octave_idx_type ii = 0; |
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718 retval.xcidx (0) = 0; |
| 5275 | 719 for (octave_idx_type i = 0; i < nc; i++) |
| 5164 | 720 { |
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721 for (octave_idx_type j = x.cidx (i); j < x.cidx (i+1); j++) |
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722 { |
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723 double tmp = atan2 (x.data (j), y); |
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724 if (tmp != 0.) |
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725 { |
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726 retval.xdata (ii) = tmp; |
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727 retval.xridx (ii++) = x.ridx (j); |
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728 } |
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729 } |
| 5164 | 730 retval.xcidx (i+1) = ii; |
| 731 } | |
| 732 | |
| 733 if (ii != nz) | |
| 734 { | |
| 735 SparseMatrix retval2 (nr, nc, ii); | |
| 5275 | 736 for (octave_idx_type i = 0; i < nc+1; i++) |
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737 retval2.xcidx (i) = retval.cidx (i); |
| 5275 | 738 for (octave_idx_type i = 0; i < ii; i++) |
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739 { |
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740 retval2.xdata (i) = retval.data (i); |
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741 retval2.xridx (i) = retval.ridx (i); |
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742 } |
| 5164 | 743 return retval2; |
| 744 } | |
| 745 else | |
| 746 return retval; | |
| 747 } | |
| 748 | |
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749 SparseMatrix |
| 5164 | 750 atan2 (const SparseMatrix& x, const SparseMatrix& y) |
| 751 { | |
| 752 SparseMatrix r; | |
| 753 | |
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754 if ((x.rows () == y.rows ()) && (x.cols () == y.cols ())) |
| 5164 | 755 { |
| 5275 | 756 octave_idx_type x_nr = x.rows (); |
| 757 octave_idx_type x_nc = x.cols (); | |
| 758 | |
| 759 octave_idx_type y_nr = y.rows (); | |
| 760 octave_idx_type y_nc = y.cols (); | |
| 5164 | 761 |
| 762 if (x_nr != y_nr || x_nc != y_nc) | |
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763 gripe_nonconformant ("atan2", x_nr, x_nc, y_nr, y_nc); |
| 5164 | 764 else |
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765 { |
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766 r = SparseMatrix (x_nr, x_nc, (x.nnz () + y.nnz ())); |
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767 |
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768 octave_idx_type jx = 0; |
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769 r.cidx (0) = 0; |
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770 for (octave_idx_type i = 0 ; i < x_nc ; i++) |
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771 { |
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772 octave_idx_type ja = x.cidx (i); |
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773 octave_idx_type ja_max = x.cidx (i+1); |
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774 bool ja_lt_max= ja < ja_max; |
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775 |
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776 octave_idx_type jb = y.cidx (i); |
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777 octave_idx_type jb_max = y.cidx (i+1); |
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778 bool jb_lt_max = jb < jb_max; |
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779 |
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780 while (ja_lt_max || jb_lt_max ) |
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781 { |
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782 octave_quit (); |
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783 if ((! jb_lt_max) || |
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784 (ja_lt_max && (x.ridx (ja) < y.ridx (jb)))) |
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785 { |
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786 r.ridx (jx) = x.ridx (ja); |
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787 r.data (jx) = atan2 (x.data (ja), 0.); |
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788 jx++; |
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789 ja++; |
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790 ja_lt_max= ja < ja_max; |
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791 } |
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792 else if (( !ja_lt_max ) || |
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793 (jb_lt_max && (y.ridx (jb) < x.ridx (ja)) ) ) |
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794 { |
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795 jb++; |
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796 jb_lt_max= jb < jb_max; |
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797 } |
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798 else |
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799 { |
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800 double tmp = atan2 (x.data (ja), y.data (jb)); |
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801 if (tmp != 0.) |
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802 { |
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803 r.data (jx) = tmp; |
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804 r.ridx (jx) = x.ridx (ja); |
| 5164 | 805 jx++; |
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806 } |
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807 ja++; |
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808 ja_lt_max= ja < ja_max; |
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809 jb++; |
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810 jb_lt_max= jb < jb_max; |
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811 } |
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812 } |
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813 r.cidx (i+1) = jx; |
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814 } |
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815 |
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816 r.maybe_compress (); |
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817 } |
| 5164 | 818 } |
| 819 else | |
| 820 (*current_liboctave_error_handler) ("matrix size mismatch"); | |
| 821 | |
| 822 return r; | |
| 823 } | |
| 824 | |
| 825 SparseMatrix | |
| 826 SparseMatrix::inverse (void) const | |
| 827 { | |
| 5275 | 828 octave_idx_type info; |
| 5164 | 829 double rcond; |
| 5785 | 830 MatrixType mattype (*this); |
| 5506 | 831 return inverse (mattype, info, rcond, 0, 0); |
| 832 } | |
| 833 | |
| 834 SparseMatrix | |
| 5785 | 835 SparseMatrix::inverse (MatrixType& mattype) const |
| 5506 | 836 { |
| 837 octave_idx_type info; | |
| 838 double rcond; | |
| 839 return inverse (mattype, info, rcond, 0, 0); | |
| 5164 | 840 } |
| 841 | |
| 842 SparseMatrix | |
| 5785 | 843 SparseMatrix::inverse (MatrixType& mattype, octave_idx_type& info) const |
| 5164 | 844 { |
| 845 double rcond; | |
| 5506 | 846 return inverse (mattype, info, rcond, 0, 0); |
| 847 } | |
| 848 | |
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849 SparseMatrix |
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850 SparseMatrix::dinverse (MatrixType &mattyp, octave_idx_type& info, |
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851 double& rcond, const bool, |
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852 const bool calccond) const |
| 5506 | 853 { |
| 854 SparseMatrix retval; | |
| 855 | |
| 856 octave_idx_type nr = rows (); | |
| 857 octave_idx_type nc = cols (); | |
| 858 info = 0; | |
| 859 | |
| 860 if (nr == 0 || nc == 0 || nr != nc) | |
| 861 (*current_liboctave_error_handler) ("inverse requires square matrix"); | |
| 862 else | |
| 863 { | |
| 864 // Print spparms("spumoni") info if requested | |
| 865 int typ = mattyp.type (); | |
| 866 mattyp.info (); | |
| 867 | |
| 5785 | 868 if (typ == MatrixType::Diagonal || |
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869 typ == MatrixType::Permuted_Diagonal) |
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870 { |
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871 if (typ == MatrixType::Permuted_Diagonal) |
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872 retval = transpose (); |
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873 else |
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874 retval = *this; |
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875 |
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876 // Force make_unique to be called |
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877 double *v = retval.data (); |
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878 |
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879 if (calccond) |
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880 { |
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881 double dmax = 0.; |
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882 double dmin = octave_Inf; |
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883 for (octave_idx_type i = 0; i < nr; i++) |
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884 { |
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885 double tmp = fabs (v[i]); |
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886 if (tmp > dmax) |
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887 dmax = tmp; |
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888 if (tmp < dmin) |
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889 dmin = tmp; |
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890 } |
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891 rcond = dmin / dmax; |
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892 } |
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893 |
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894 for (octave_idx_type i = 0; i < nr; i++) |
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895 v[i] = 1.0 / v[i]; |
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896 } |
| 5506 | 897 else |
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898 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5506 | 899 } |
| 900 | |
| 901 return retval; | |
| 902 } | |
| 903 | |
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904 SparseMatrix |
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905 SparseMatrix::tinverse (MatrixType &mattyp, octave_idx_type& info, |
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906 double& rcond, const bool, |
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907 const bool calccond) const |
| 5506 | 908 { |
| 909 SparseMatrix retval; | |
| 910 | |
| 911 octave_idx_type nr = rows (); | |
| 912 octave_idx_type nc = cols (); | |
| 913 info = 0; | |
| 914 | |
| 915 if (nr == 0 || nc == 0 || nr != nc) | |
| 916 (*current_liboctave_error_handler) ("inverse requires square matrix"); | |
| 917 else | |
| 918 { | |
| 919 // Print spparms("spumoni") info if requested | |
| 920 int typ = mattyp.type (); | |
| 921 mattyp.info (); | |
| 922 | |
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923 if (typ == MatrixType::Upper || typ == MatrixType::Permuted_Upper || |
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924 typ == MatrixType::Lower || typ == MatrixType::Permuted_Lower) |
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925 { |
|
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
926 double anorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
927 double ainvnorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
928 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
929 if (calccond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
930 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
931 // Calculate the 1-norm of matrix for rcond calculation |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
932 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
933 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
934 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
935 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
|
936 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
937 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
938 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
939 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
940 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
941 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
942 if (typ == MatrixType::Upper || typ == MatrixType::Lower) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
943 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
944 octave_idx_type nz = nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
945 octave_idx_type cx = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
946 octave_idx_type nz2 = nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
947 retval = SparseMatrix (nr, nc, nz2); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
948 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
949 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
950 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
951 octave_quit (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
952 // place the 1 in the identity position |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
953 octave_idx_type cx_colstart = cx; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
954 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
955 if (cx == nz2) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
956 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
957 nz2 *= 2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
958 retval.change_capacity (nz2); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
959 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
960 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
961 retval.xcidx (i) = cx; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
962 retval.xridx (cx) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
963 retval.xdata (cx) = 1.0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
964 cx++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
965 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
966 // iterate accross columns of input matrix |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
967 for (octave_idx_type j = i+1; j < nr; j++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
968 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
969 double v = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
970 // iterate to calculate sum |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
971 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
|
972 octave_idx_type colUp = cidx (j); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
973 octave_idx_type rpX, rpU; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
974 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
975 if (cidx (j) == cidx (j+1)) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
976 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
977 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
978 ("division by zero"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
979 goto inverse_singular; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
980 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
981 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
982 do |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
983 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
984 octave_quit (); |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
985 rpX = retval.xridx (colXp); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
986 rpU = ridx (colUp); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
987 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
988 if (rpX < rpU) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
989 colXp++; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
990 else if (rpX > rpU) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
991 colUp++; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
992 else |
|
10314
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 v -= retval.xdata (colXp) * data (colUp); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
995 colXp++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
996 colUp++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
997 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
998 } while ((rpX<j) && (rpU<j) && |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
999 (colXp<cx) && (colUp<nz)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1000 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1001 // get A(m,m) |
|
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 (j+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 (j); |
|
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) != j) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1008 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
1009 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1010 ("division by zero"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1011 goto inverse_singular; |
|
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 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1014 if (v != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1015 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1016 if (cx == nz2) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1017 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1018 nz2 *= 2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1019 retval.change_capacity (nz2); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1020 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1021 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1022 retval.xridx (cx) = j; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1023 retval.xdata (cx) = v / pivot; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1024 cx++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1025 } |
|
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 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1028 // get A(m,m) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1029 octave_idx_type colUp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1030 if (typ == MatrixType::Upper) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1031 colUp = cidx (i+1) - 1; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1032 else |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1033 colUp = cidx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1034 double pivot = data (colUp); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1035 if (pivot == 0. || ridx (colUp) != i) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1036 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1037 (*current_liboctave_error_handler) ("division by zero"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1038 goto inverse_singular; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1039 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1040 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1041 if (pivot != 1.0) |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
1042 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
|
1043 retval.xdata (j) /= pivot; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1044 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1045 retval.xcidx (nr) = cx; |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
1046 retval.maybe_compress (); |
|
07ebe522dac2
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diff
changeset
|
1047 } |
|
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diff
changeset
|
1048 else |
|
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1049 { |
|
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untabify liboctave C++ sources
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|
1050 octave_idx_type nz = nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
1051 octave_idx_type cx = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1052 octave_idx_type nz2 = nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1053 retval = SparseMatrix (nr, nc, nz2); |
|
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untabify liboctave C++ sources
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changeset
|
1054 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1055 OCTAVE_LOCAL_BUFFER (double, work, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1056 OCTAVE_LOCAL_BUFFER (octave_idx_type, rperm, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1057 |
|
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
|
1058 octave_idx_type *perm = mattyp.triangular_perm (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
1059 if (typ == MatrixType::Permuted_Upper) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1060 { |
|
07ebe522dac2
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diff
changeset
|
1061 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1062 rperm[perm[i]] = i; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1063 } |
|
07ebe522dac2
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diff
changeset
|
1064 else |
|
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untabify liboctave C++ sources
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diff
changeset
|
1065 { |
|
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diff
changeset
|
1066 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1067 rperm[i] = perm[i]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1068 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1069 perm[rperm[i]] = i; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1070 } |
|
07ebe522dac2
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parents:
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diff
changeset
|
1071 |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1072 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
|
1073 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1074 octave_quit (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1075 octave_idx_type iidx = rperm[i]; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1076 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1077 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
|
1078 work[j] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1079 |
|
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diff
changeset
|
1080 // place the 1 in the identity position |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1081 work[iidx] = 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
1082 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
1083 // iterate accross columns of input matrix |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
1084 for (octave_idx_type j = iidx+1; j < nr; j++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
1085 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1086 double v = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
1087 octave_idx_type jidx = perm[j]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1088 // iterate to calculate sum |
|
15018
3d8ace26c5b4
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Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1089 for (octave_idx_type k = cidx (jidx); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1090 k < cidx (jidx+1); k++) |
|
10314
07ebe522dac2
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diff
changeset
|
1091 { |
|
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untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
1092 octave_quit (); |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1093 v -= work[ridx (k)] * data (k); |
|
10314
07ebe522dac2
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parents:
10158
diff
changeset
|
1094 } |
|
07ebe522dac2
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parents:
10158
diff
changeset
|
1095 |
|
07ebe522dac2
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diff
changeset
|
1096 // get A(m,m) |
|
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untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
1097 double pivot; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1098 if (typ == MatrixType::Permuted_Upper) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1099 pivot = data (cidx (jidx+1) - 1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1100 else |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1101 pivot = data (cidx (jidx)); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
1102 if (pivot == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1103 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
1104 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1105 ("division by zero"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1106 goto inverse_singular; |
|
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diff
changeset
|
1107 } |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
1108 |
|
07ebe522dac2
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parents:
10158
diff
changeset
|
1109 work[j] = v / pivot; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1110 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
1111 |
|
07ebe522dac2
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diff
changeset
|
1112 // get A(m,m) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1113 octave_idx_type colUp; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
1114 if (typ == MatrixType::Permuted_Upper) |
|
15018
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Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1115 colUp = cidx (perm[iidx]+1) - 1; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
1116 else |
|
15018
3d8ace26c5b4
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Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1117 colUp = cidx (perm[iidx]); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1118 |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
1119 double pivot = data (colUp); |
|
10314
07ebe522dac2
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diff
changeset
|
1120 if (pivot == 0.) |
|
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10158
diff
changeset
|
1121 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
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parents:
11574
diff
changeset
|
1122 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1123 ("division by zero"); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1124 goto inverse_singular; |
|
07ebe522dac2
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diff
changeset
|
1125 } |
|
07ebe522dac2
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diff
changeset
|
1126 |
|
07ebe522dac2
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diff
changeset
|
1127 octave_idx_type new_cx = cx; |
|
07ebe522dac2
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diff
changeset
|
1128 for (octave_idx_type j = iidx; j < nr; j++) |
|
07ebe522dac2
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diff
changeset
|
1129 if (work[j] != 0.0) |
|
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diff
changeset
|
1130 { |
|
07ebe522dac2
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diff
changeset
|
1131 new_cx++; |
|
07ebe522dac2
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diff
changeset
|
1132 if (pivot != 1.0) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1133 work[j] /= pivot; |
|
07ebe522dac2
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diff
changeset
|
1134 } |
|
07ebe522dac2
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diff
changeset
|
1135 |
|
07ebe522dac2
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changeset
|
1136 if (cx < new_cx) |
|
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diff
changeset
|
1137 { |
|
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changeset
|
1138 nz2 = (2*nz2 < new_cx ? new_cx : 2*nz2); |
|
07ebe522dac2
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changeset
|
1139 retval.change_capacity (nz2); |
|
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10158
diff
changeset
|
1140 } |
|
07ebe522dac2
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diff
changeset
|
1141 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
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parents:
14846
diff
changeset
|
1142 retval.xcidx (i) = cx; |
|
10314
07ebe522dac2
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10158
diff
changeset
|
1143 for (octave_idx_type j = iidx; j < nr; j++) |
|
07ebe522dac2
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diff
changeset
|
1144 if (work[j] != 0.) |
|
07ebe522dac2
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diff
changeset
|
1145 { |
|
15018
3d8ace26c5b4
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14846
diff
changeset
|
1146 retval.xridx (cx) = j; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1147 retval.xdata (cx++) = work[j]; |
|
10314
07ebe522dac2
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diff
changeset
|
1148 } |
|
07ebe522dac2
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diff
changeset
|
1149 } |
|
07ebe522dac2
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diff
changeset
|
1150 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1151 retval.xcidx (nr) = cx; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1152 retval.maybe_compress (); |
|
07ebe522dac2
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10158
diff
changeset
|
1153 } |
|
07ebe522dac2
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10158
diff
changeset
|
1154 |
|
07ebe522dac2
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diff
changeset
|
1155 if (calccond) |
|
07ebe522dac2
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10158
diff
changeset
|
1156 { |
|
07ebe522dac2
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1157 // Calculate the 1-norm of inverse matrix for rcond calculation |
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1158 for (octave_idx_type j = 0; j < nr; j++) |
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1159 { |
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1160 double atmp = 0.; |
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1161 for (octave_idx_type i = retval.cidx (j); |
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1162 i < retval.cidx (j+1); i++) |
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1163 atmp += fabs (retval.data (i)); |
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1164 if (atmp > ainvnorm) |
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1165 ainvnorm = atmp; |
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1166 } |
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1167 |
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1168 rcond = 1. / ainvnorm / anorm; |
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1169 } |
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1170 } |
| 5506 | 1171 else |
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1172 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5506 | 1173 } |
| 1174 | |
| 1175 return retval; | |
| 5876 | 1176 |
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1177 inverse_singular: |
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1178 return SparseMatrix (); |
| 5164 | 1179 } |
| 1180 | |
| 1181 SparseMatrix | |
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1182 SparseMatrix::inverse (MatrixType &mattype, octave_idx_type& info, |
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1183 double& rcond, int, int calc_cond) const |
| 5506 | 1184 { |
| 1185 int typ = mattype.type (false); | |
| 1186 SparseMatrix ret; | |
| 1187 | |
| 5785 | 1188 if (typ == MatrixType::Unknown) |
| 5506 | 1189 typ = mattype.type (*this); |
| 1190 | |
| 5785 | 1191 if (typ == MatrixType::Diagonal || typ == MatrixType::Permuted_Diagonal) |
| 5506 | 1192 ret = dinverse (mattype, info, rcond, true, calc_cond); |
| 5785 | 1193 else if (typ == MatrixType::Upper || typ == MatrixType::Permuted_Upper) |
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1194 ret = tinverse (mattype, info, rcond, true, calc_cond).transpose (); |
| 5785 | 1195 else if (typ == MatrixType::Lower || typ == MatrixType::Permuted_Lower) |
| 6185 | 1196 { |
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1197 MatrixType newtype = mattype.transpose (); |
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1198 ret = transpose ().tinverse (newtype, info, rcond, true, calc_cond); |
| 6185 | 1199 } |
| 6840 | 1200 else |
| 5506 | 1201 { |
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1202 if (mattype.is_hermitian ()) |
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1203 { |
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1204 MatrixType tmp_typ (MatrixType::Upper); |
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1205 SparseCHOL fact (*this, info, false); |
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1206 rcond = fact.rcond (); |
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1207 if (info == 0) |
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1208 { |
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1209 double rcond2; |
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1210 SparseMatrix Q = fact.Q (); |
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1211 SparseMatrix InvL = fact.L ().transpose ().tinverse (tmp_typ, |
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1212 info, rcond2, true, false); |
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1213 ret = Q * InvL.transpose () * InvL * Q.transpose (); |
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1214 } |
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1215 else |
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1216 { |
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1217 // Matrix is either singular or not positive definite |
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1218 mattype.mark_as_unsymmetric (); |
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1219 typ = MatrixType::Full; |
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1220 } |
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1221 } |
| 5506 | 1222 |
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1223 if (!mattype.is_hermitian ()) |
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1224 { |
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1225 octave_idx_type n = rows (); |
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1226 ColumnVector Qinit(n); |
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1227 for (octave_idx_type i = 0; i < n; i++) |
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1228 Qinit(i) = i; |
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1229 |
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1230 MatrixType tmp_typ (MatrixType::Upper); |
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1231 SparseLU fact (*this, Qinit, Matrix (), false, false); |
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1232 rcond = fact.rcond (); |
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1233 double rcond2; |
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1234 SparseMatrix InvL = fact.L ().transpose ().tinverse (tmp_typ, |
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1235 info, rcond2, true, false); |
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1236 SparseMatrix InvU = fact.U ().tinverse (tmp_typ, info, rcond2, |
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1237 true, false).transpose (); |
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1238 ret = fact.Pc ().transpose () * InvU * InvL * fact.Pr (); |
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1239 } |
| 5506 | 1240 } |
| 1241 | |
| 1242 return ret; | |
| 5164 | 1243 } |
| 1244 | |
| 1245 DET | |
| 1246 SparseMatrix::determinant (void) const | |
| 1247 { | |
| 5275 | 1248 octave_idx_type info; |
| 5164 | 1249 double rcond; |
| 1250 return determinant (info, rcond, 0); | |
| 1251 } | |
| 1252 | |
| 1253 DET | |
| 5275 | 1254 SparseMatrix::determinant (octave_idx_type& info) const |
| 5164 | 1255 { |
| 1256 double rcond; | |
| 1257 return determinant (info, rcond, 0); | |
| 1258 } | |
| 1259 | |
| 1260 DET | |
| 5275 | 1261 SparseMatrix::determinant (octave_idx_type& err, double& rcond, int) const |
| 5164 | 1262 { |
| 1263 DET retval; | |
| 1264 | |
| 5203 | 1265 #ifdef HAVE_UMFPACK |
| 5275 | 1266 octave_idx_type nr = rows (); |
| 1267 octave_idx_type nc = cols (); | |
| 5164 | 1268 |
| 1269 if (nr == 0 || nc == 0 || nr != nc) | |
| 1270 { | |
| 8335 | 1271 retval = DET (1.0); |
| 5164 | 1272 } |
| 1273 else | |
| 1274 { | |
| 1275 err = 0; | |
| 1276 | |
| 1277 // Setup the control parameters | |
| 1278 Matrix Control (UMFPACK_CONTROL, 1); | |
| 1279 double *control = Control.fortran_vec (); | |
| 5322 | 1280 UMFPACK_DNAME (defaults) (control); |
| 5164 | 1281 |
| 5893 | 1282 double tmp = octave_sparse_params::get_key ("spumoni"); |
| 5164 | 1283 if (!xisnan (tmp)) |
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1284 Control (UMFPACK_PRL) = tmp; |
| 5164 | 1285 |
| 5893 | 1286 tmp = octave_sparse_params::get_key ("piv_tol"); |
| 5164 | 1287 if (!xisnan (tmp)) |
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1288 { |
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1289 Control (UMFPACK_SYM_PIVOT_TOLERANCE) = tmp; |
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1290 Control (UMFPACK_PIVOT_TOLERANCE) = tmp; |
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1291 } |
| 5164 | 1292 |
| 1293 // Set whether we are allowed to modify Q or not | |
| 5893 | 1294 tmp = octave_sparse_params::get_key ("autoamd"); |
| 5164 | 1295 if (!xisnan (tmp)) |
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1296 Control (UMFPACK_FIXQ) = tmp; |
| 5164 | 1297 |
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1298 // Turn-off UMFPACK scaling for LU |
| 5164 | 1299 Control (UMFPACK_SCALE) = UMFPACK_SCALE_NONE; |
| 1300 | |
| 5322 | 1301 UMFPACK_DNAME (report_control) (control); |
| 5164 | 1302 |
| 5275 | 1303 const octave_idx_type *Ap = cidx (); |
| 1304 const octave_idx_type *Ai = ridx (); | |
| 5164 | 1305 const double *Ax = data (); |
| 1306 | |
| 5322 | 1307 UMFPACK_DNAME (report_matrix) (nr, nc, Ap, Ai, Ax, 1, control); |
| 5164 | 1308 |
| 1309 void *Symbolic; | |
| 1310 Matrix Info (1, UMFPACK_INFO); | |
| 1311 double *info = Info.fortran_vec (); | |
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1312 int status = UMFPACK_DNAME (qsymbolic) (nr, nc, Ap, Ai, |
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1313 Ax, 0, &Symbolic, control, info); |
| 5164 | 1314 |
| 1315 if (status < 0) | |
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1316 { |
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1317 (*current_liboctave_error_handler) |
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1318 ("SparseMatrix::determinant symbolic factorization failed"); |
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1319 |
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1320 UMFPACK_DNAME (report_status) (control, status); |
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1321 UMFPACK_DNAME (report_info) (control, info); |
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1322 |
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1323 UMFPACK_DNAME (free_symbolic) (&Symbolic); |
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1324 } |
| 5164 | 1325 else |
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1326 { |
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1327 UMFPACK_DNAME (report_symbolic) (Symbolic, control); |
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1328 |
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1329 void *Numeric; |
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1330 status = UMFPACK_DNAME (numeric) (Ap, Ai, Ax, Symbolic, |
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1331 &Numeric, control, info); |
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1332 UMFPACK_DNAME (free_symbolic) (&Symbolic); |
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1333 |
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1334 rcond = Info (UMFPACK_RCOND); |
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1335 |
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1336 if (status < 0) |
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1337 { |
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1338 (*current_liboctave_error_handler) |
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1339 ("SparseMatrix::determinant numeric factorization failed"); |
|
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1340 |
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1341 UMFPACK_DNAME (report_status) (control, status); |
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1342 UMFPACK_DNAME (report_info) (control, info); |
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1343 |
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1344 UMFPACK_DNAME (free_numeric) (&Numeric); |
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1345 } |
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|
1346 else |
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1347 { |
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1348 UMFPACK_DNAME (report_numeric) (Numeric, control); |
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1349 |
|
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|
1350 double c10, e10; |
|
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1351 |
|
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1352 status = UMFPACK_DNAME (get_determinant) (&c10, &e10, Numeric, |
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1353 info); |
|
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1354 |
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1355 if (status < 0) |
|
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1356 { |
|
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1357 (*current_liboctave_error_handler) |
|
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1358 ("SparseMatrix::determinant error calculating determinant"); |
|
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1359 |
|
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|
1360 UMFPACK_DNAME (report_status) (control, status); |
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|
1361 UMFPACK_DNAME (report_info) (control, info); |
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1362 } |
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|
1363 else |
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1364 retval = DET (c10, e10, 10); |
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1365 |
|
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|
1366 UMFPACK_DNAME (free_numeric) (&Numeric); |
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|
1367 } |
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|
1368 } |
| 5164 | 1369 } |
| 5203 | 1370 #else |
| 1371 (*current_liboctave_error_handler) ("UMFPACK not installed"); | |
| 1372 #endif | |
| 5164 | 1373 |
| 1374 return retval; | |
| 1375 } | |
| 1376 | |
| 1377 Matrix | |
|
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1378 SparseMatrix::dsolve (MatrixType &mattype, const Matrix& b, |
|
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1379 octave_idx_type& err, |
|
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|
1380 double& rcond, solve_singularity_handler, |
|
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|
1381 bool calc_cond) const |
| 5164 | 1382 { |
| 1383 Matrix retval; | |
| 1384 | |
| 5275 | 1385 octave_idx_type nr = rows (); |
| 1386 octave_idx_type nc = cols (); | |
| 5630 | 1387 octave_idx_type nm = (nc < nr ? nc : nr); |
| 5164 | 1388 err = 0; |
| 1389 | |
| 6924 | 1390 if (nr != b.rows ()) |
| 5164 | 1391 (*current_liboctave_error_handler) |
| 1392 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 1393 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 1394 retval = Matrix (nc, b.cols (), 0.0); | |
| 5164 | 1395 else |
| 1396 { | |
| 1397 // Print spparms("spumoni") info if requested | |
| 1398 int typ = mattype.type (); | |
| 1399 mattype.info (); | |
| 1400 | |
| 5785 | 1401 if (typ == MatrixType::Diagonal || |
|
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|
1402 typ == MatrixType::Permuted_Diagonal) |
|
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|
1403 { |
|
14846
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|
1404 retval.resize (nc, b.cols (), 0.); |
|
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|
1405 if (typ == MatrixType::Diagonal) |
|
14846
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|
1406 for (octave_idx_type j = 0; j < b.cols (); j++) |
|
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|
1407 for (octave_idx_type i = 0; i < nm; i++) |
|
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|
1408 retval(i,j) = b(i,j) / data (i); |
|
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|
1409 else |
|
14846
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|
1410 for (octave_idx_type j = 0; j < b.cols (); j++) |
|
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|
1411 for (octave_idx_type k = 0; k < nc; k++) |
|
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|
1412 for (octave_idx_type i = cidx (k); i < cidx (k+1); i++) |
|
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|
1413 retval(k,j) = b(ridx (i),j) / data (i); |
|
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|
1414 |
|
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|
1415 if (calc_cond) |
|
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|
1416 { |
|
18084
8e056300994b
Follow coding convention of defining and initializing only 1 variable per line in liboctave.
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|
1417 double dmax = 0.; |
|
8e056300994b
Follow coding convention of defining and initializing only 1 variable per line in liboctave.
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|
1418 double dmin = octave_Inf; |
|
10314
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|
1419 for (octave_idx_type i = 0; i < nm; i++) |
|
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|
1420 { |
|
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|
1421 double tmp = fabs (data (i)); |
|
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|
1422 if (tmp > dmax) |
|
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|
1423 dmax = tmp; |
|
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|
1424 if (tmp < dmin) |
|
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|
1425 dmin = tmp; |
|
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|
1426 } |
|
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|
1427 rcond = dmin / dmax; |
|
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|
1428 } |
|
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|
1429 else |
|
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|
1430 rcond = 1.; |
|
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|
1431 } |
| 5164 | 1432 else |
|
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|
1433 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 1434 } |
| 1435 | |
| 1436 return retval; | |
| 1437 } | |
| 1438 | |
| 1439 SparseMatrix | |
|
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|
1440 SparseMatrix::dsolve (MatrixType &mattype, const SparseMatrix& b, |
|
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|
1441 octave_idx_type& err, double& rcond, |
|
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|
1442 solve_singularity_handler, bool calc_cond) const |
| 5164 | 1443 { |
| 1444 SparseMatrix retval; | |
| 1445 | |
| 5275 | 1446 octave_idx_type nr = rows (); |
| 1447 octave_idx_type nc = cols (); | |
| 5630 | 1448 octave_idx_type nm = (nc < nr ? nc : nr); |
| 5164 | 1449 err = 0; |
| 1450 | |
| 6924 | 1451 if (nr != b.rows ()) |
| 5164 | 1452 (*current_liboctave_error_handler) |
| 1453 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 1454 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 1455 retval = SparseMatrix (nc, b.cols ()); | |
| 5164 | 1456 else |
| 1457 { | |
| 1458 // Print spparms("spumoni") info if requested | |
| 1459 int typ = mattype.type (); | |
| 1460 mattype.info (); | |
| 1461 | |
| 5785 | 1462 if (typ == MatrixType::Diagonal || |
|
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|
1463 typ == MatrixType::Permuted_Diagonal) |
|
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|
1464 { |
|
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|
1465 octave_idx_type b_nc = b.cols (); |
|
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|
1466 octave_idx_type b_nz = b.nnz (); |
|
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|
1467 retval = SparseMatrix (nc, b_nc, b_nz); |
|
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|
1468 |
|
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|
1469 retval.xcidx (0) = 0; |
|
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|
1470 octave_idx_type ii = 0; |
|
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|
1471 if (typ == MatrixType::Diagonal) |
|
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|
1472 for (octave_idx_type j = 0; j < b_nc; j++) |
|
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|
1473 { |
|
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|
1474 for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++) |
|
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|
1475 { |
|
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|
1476 if (b.ridx (i) >= nm) |
|
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|
1477 break; |
|
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|
1478 retval.xridx (ii) = b.ridx (i); |
|
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|
1479 retval.xdata (ii++) = b.data (i) / data (b.ridx (i)); |
|
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|
1480 } |
|
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|
1481 retval.xcidx (j+1) = ii; |
|
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|
1482 } |
|
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|
1483 else |
|
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|
1484 for (octave_idx_type j = 0; j < b_nc; j++) |
|
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|
1485 { |
|
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changeset
|
1486 for (octave_idx_type l = 0; l < nc; l++) |
|
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|
1487 for (octave_idx_type i = cidx (l); i < cidx (l+1); i++) |
|
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|
1488 { |
|
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|
1489 bool found = false; |
|
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|
1490 octave_idx_type k; |
|
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|
1491 for (k = b.cidx (j); k < b.cidx (j+1); k++) |
|
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|
1492 if (ridx (i) == b.ridx (k)) |
|
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|
1493 { |
|
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|
1494 found = true; |
|
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changeset
|
1495 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1496 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1497 if (found) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1498 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1499 retval.xridx (ii) = l; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1500 retval.xdata (ii++) = b.data (k) / data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1501 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1502 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1503 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1504 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1505 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1506 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1507 { |
|
18084
8e056300994b
Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents:
18083
diff
changeset
|
1508 double dmax = 0.; |
|
8e056300994b
Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents:
18083
diff
changeset
|
1509 double dmin = octave_Inf; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1510 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1511 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1512 double tmp = fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1513 if (tmp > dmax) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1514 dmax = tmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1515 if (tmp < dmin) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1516 dmin = tmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1517 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1518 rcond = dmin / dmax; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1519 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1520 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1521 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1522 } |
| 5164 | 1523 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1524 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 1525 } |
| 1526 | |
| 1527 return retval; | |
| 1528 } | |
| 1529 | |
| 1530 ComplexMatrix | |
| 5785 | 1531 SparseMatrix::dsolve (MatrixType &mattype, const ComplexMatrix& b, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1532 octave_idx_type& err, double& rcond, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1533 solve_singularity_handler, bool calc_cond) const |
| 5164 | 1534 { |
| 1535 ComplexMatrix retval; | |
| 1536 | |
| 5275 | 1537 octave_idx_type nr = rows (); |
| 1538 octave_idx_type nc = cols (); | |
| 5630 | 1539 octave_idx_type nm = (nc < nr ? nc : nr); |
| 5164 | 1540 err = 0; |
| 1541 | |
| 6924 | 1542 if (nr != b.rows ()) |
| 5164 | 1543 (*current_liboctave_error_handler) |
| 1544 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 1545 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 1546 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0)); | |
| 5164 | 1547 else |
| 1548 { | |
| 1549 // Print spparms("spumoni") info if requested | |
| 1550 int typ = mattype.type (); | |
| 1551 mattype.info (); | |
| 1552 | |
| 5785 | 1553 if (typ == MatrixType::Diagonal || |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1554 typ == MatrixType::Permuted_Diagonal) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1555 { |
|
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
|
1556 retval.resize (nc, b.cols (), 0); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1557 if (typ == MatrixType::Diagonal) |
|
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
|
1558 for (octave_idx_type j = 0; j < b.cols (); j++) |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
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diff
changeset
|
1559 for (octave_idx_type i = 0; i < nm; i++) |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
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17744
diff
changeset
|
1560 retval(i,j) = b(i,j) / data (i); |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
1561 else |
|
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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diff
changeset
|
1562 for (octave_idx_type j = 0; j < b.cols (); j++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1563 for (octave_idx_type k = 0; k < nc; k++) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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diff
changeset
|
1564 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>
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diff
changeset
|
1565 retval(k,j) = b(ridx (i),j) / data (i); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
1566 |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
1567 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1568 { |
|
18084
8e056300994b
Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents:
18083
diff
changeset
|
1569 double dmax = 0.; |
|
8e056300994b
Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents:
18083
diff
changeset
|
1570 double dmin = octave_Inf; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1571 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1572 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1573 double tmp = fabs (data (i)); |
|
10314
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1574 if (tmp > dmax) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1575 dmax = tmp; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
1576 if (tmp < dmin) |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
1577 dmin = tmp; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
1578 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1579 rcond = dmin / dmax; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
1580 } |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
1581 else |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
1582 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
1583 } |
| 5164 | 1584 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
1585 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 1586 } |
| 1587 | |
| 1588 return retval; | |
| 1589 } | |
| 1590 | |
| 1591 SparseComplexMatrix | |
| 5785 | 1592 SparseMatrix::dsolve (MatrixType &mattype, const SparseComplexMatrix& b, |
|
17769
49a5a4be04a1
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Rik <rik@octave.org>
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17744
diff
changeset
|
1593 octave_idx_type& err, double& rcond, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1594 solve_singularity_handler, bool calc_cond) const |
| 5164 | 1595 { |
| 1596 SparseComplexMatrix retval; | |
| 1597 | |
| 5275 | 1598 octave_idx_type nr = rows (); |
| 1599 octave_idx_type nc = cols (); | |
| 5630 | 1600 octave_idx_type nm = (nc < nr ? nc : nr); |
| 5164 | 1601 err = 0; |
| 1602 | |
| 6924 | 1603 if (nr != b.rows ()) |
| 5164 | 1604 (*current_liboctave_error_handler) |
| 1605 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 1606 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 1607 retval = SparseComplexMatrix (nc, b.cols ()); | |
| 5164 | 1608 else |
| 1609 { | |
| 1610 // Print spparms("spumoni") info if requested | |
| 1611 int typ = mattype.type (); | |
| 1612 mattype.info (); | |
| 1613 | |
| 5785 | 1614 if (typ == MatrixType::Diagonal || |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
1615 typ == MatrixType::Permuted_Diagonal) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
1616 { |
|
07ebe522dac2
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diff
changeset
|
1617 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
1618 octave_idx_type b_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
1619 retval = SparseComplexMatrix (nc, b_nc, b_nz); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
1620 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
1621 retval.xcidx (0) = 0; |
|
10314
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diff
changeset
|
1622 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
1623 if (typ == MatrixType::Diagonal) |
|
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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diff
changeset
|
1624 for (octave_idx_type j = 0; j < b.cols (); j++) |
|
10314
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changeset
|
1625 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1626 for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++) |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
1627 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
1628 if (b.ridx (i) >= nm) |
|
10314
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diff
changeset
|
1629 break; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
1630 retval.xridx (ii) = b.ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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diff
changeset
|
1631 retval.xdata (ii++) = b.data (i) / data (b.ridx (i)); |
|
10314
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changeset
|
1632 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
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diff
changeset
|
1633 retval.xcidx (j+1) = ii; |
|
10314
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changeset
|
1634 } |
|
07ebe522dac2
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changeset
|
1635 else |
|
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
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diff
changeset
|
1636 for (octave_idx_type j = 0; j < b.cols (); j++) |
|
10314
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changeset
|
1637 { |
|
07ebe522dac2
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changeset
|
1638 for (octave_idx_type l = 0; l < nc; l++) |
|
15018
3d8ace26c5b4
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diff
changeset
|
1639 for (octave_idx_type i = cidx (l); i < cidx (l+1); i++) |
|
10314
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changeset
|
1640 { |
|
07ebe522dac2
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changeset
|
1641 bool found = false; |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
1642 octave_idx_type k; |
|
15018
3d8ace26c5b4
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Rik <rik@octave.org>
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14846
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changeset
|
1643 for (k = b.cidx (j); k < b.cidx (j+1); k++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
1644 if (ridx (i) == b.ridx (k)) |
|
10314
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changeset
|
1645 { |
|
07ebe522dac2
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diff
changeset
|
1646 found = true; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
1647 break; |
|
07ebe522dac2
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diff
changeset
|
1648 } |
|
07ebe522dac2
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changeset
|
1649 if (found) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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changeset
|
1650 { |
|
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|
1651 retval.xridx (ii) = l; |
|
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maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
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|
1652 retval.xdata (ii++) = b.data (k) / data (i); |
|
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|
1653 } |
|
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|
1654 } |
|
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3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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|
1655 retval.xcidx (j+1) = ii; |
|
10314
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|
1656 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
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|
1657 |
|
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|
1658 if (calc_cond) |
|
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untabify liboctave C++ sources
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|
1659 { |
|
18084
8e056300994b
Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
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18083
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|
1660 double dmax = 0.; |
|
8e056300994b
Follow coding convention of defining and initializing only 1 variable per line in liboctave.
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18083
diff
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|
1661 double dmin = octave_Inf; |
|
10314
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|
1662 for (octave_idx_type i = 0; i < nm; i++) |
|
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untabify liboctave C++ sources
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|
1663 { |
|
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maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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|
1664 double tmp = fabs (data (i)); |
|
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|
1665 if (tmp > dmax) |
|
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untabify liboctave C++ sources
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|
1666 dmax = tmp; |
|
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|
1667 if (tmp < dmin) |
|
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untabify liboctave C++ sources
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|
1668 dmin = tmp; |
|
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|
1669 } |
|
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|
1670 rcond = dmin / dmax; |
|
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|
1671 } |
|
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|
1672 else |
|
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|
1673 rcond = 1.; |
|
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|
1674 } |
| 5164 | 1675 else |
|
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|
1676 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 1677 } |
| 1678 | |
| 1679 return retval; | |
| 1680 } | |
| 1681 | |
| 1682 Matrix | |
| 5785 | 1683 SparseMatrix::utsolve (MatrixType &mattype, const Matrix& b, |
|
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|
1684 octave_idx_type& err, double& rcond, |
|
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|
1685 solve_singularity_handler sing_handler, |
|
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|
1686 bool calc_cond) const |
| 5164 | 1687 { |
| 1688 Matrix retval; | |
| 1689 | |
| 5275 | 1690 octave_idx_type nr = rows (); |
| 1691 octave_idx_type nc = cols (); | |
| 5630 | 1692 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 1693 err = 0; |
| 1694 | |
| 6924 | 1695 if (nr != b.rows ()) |
| 5164 | 1696 (*current_liboctave_error_handler) |
| 1697 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 1698 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 1699 retval = Matrix (nc, b.cols (), 0.0); | |
| 5164 | 1700 else |
| 1701 { | |
| 1702 // Print spparms("spumoni") info if requested | |
| 1703 int typ = mattype.type (); | |
| 1704 mattype.info (); | |
| 1705 | |
| 5785 | 1706 if (typ == MatrixType::Permuted_Upper || |
|
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|
1707 typ == MatrixType::Upper) |
|
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|
1708 { |
|
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|
1709 double anorm = 0.; |
|
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|
1710 double ainvnorm = 0.; |
|
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untabify liboctave C++ sources
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|
1711 octave_idx_type b_nc = b.cols (); |
|
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untabify liboctave C++ sources
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|
1712 rcond = 1.; |
|
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|
1713 |
|
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|
1714 if (calc_cond) |
|
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|
1715 { |
|
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|
1716 // Calculate the 1-norm of matrix for rcond calculation |
|
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|
1717 for (octave_idx_type j = 0; j < nc; j++) |
|
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|
1718 { |
|
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changeset
|
1719 double atmp = 0.; |
|
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|
1720 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
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|
1721 atmp += fabs (data (i)); |
|
10314
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|
1722 if (atmp > anorm) |
|
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|
1723 anorm = atmp; |
|
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|
1724 } |
|
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|
1725 } |
|
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|
1726 |
|
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|
1727 if (typ == MatrixType::Permuted_Upper) |
|
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|
1728 { |
|
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|
1729 retval.resize (nc, b_nc); |
|
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untabify liboctave C++ sources
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|
1730 octave_idx_type *perm = mattype.triangular_perm (); |
|
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untabify liboctave C++ sources
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|
1731 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
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|
1732 |
|
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changeset
|
1733 for (octave_idx_type j = 0; j < b_nc; j++) |
|
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|
1734 { |
|
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changeset
|
1735 for (octave_idx_type i = 0; i < nr; i++) |
|
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untabify liboctave C++ sources
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|
1736 work[i] = b(i,j); |
|
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untabify liboctave C++ sources
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changeset
|
1737 for (octave_idx_type i = nr; i < nc; i++) |
|
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untabify liboctave C++ sources
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|
1738 work[i] = 0.; |
|
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|
1739 |
|
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changeset
|
1740 for (octave_idx_type k = nc-1; k >= 0; k--) |
|
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|
1741 { |
|
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changeset
|
1742 octave_idx_type kidx = perm[k]; |
|
07ebe522dac2
untabify liboctave C++ sources
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|
1743 |
|
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changeset
|
1744 if (work[k] != 0.) |
|
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untabify liboctave C++ sources
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changeset
|
1745 { |
|
15018
3d8ace26c5b4
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Rik <rik@octave.org>
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14846
diff
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|
1746 if (ridx (cidx (kidx+1)-1) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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diff
changeset
|
1747 data (cidx (kidx+1)-1) == 0.) |
|
10314
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|
1748 { |
|
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changeset
|
1749 err = -2; |
|
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|
1750 goto triangular_error; |
|
11586
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|
1751 } |
|
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|
1752 |
|
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Rik <rik@octave.org>
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changeset
|
1753 double tmp = work[k] / data (cidx (kidx+1)-1); |
|
10314
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changeset
|
1754 work[k] = tmp; |
|
15018
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Rik <rik@octave.org>
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diff
changeset
|
1755 for (octave_idx_type i = cidx (kidx); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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|
1756 i < cidx (kidx+1)-1; i++) |
|
10314
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|
1757 { |
|
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changeset
|
1758 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
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changeset
|
1759 work[iidx] = work[iidx] - tmp * data (i); |
|
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|
1760 } |
|
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|
1761 } |
|
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|
1762 } |
|
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|
1763 |
|
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|
1764 for (octave_idx_type i = 0; i < nc; i++) |
|
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|
1765 retval.xelem (perm[i], j) = work[i]; |
|
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|
1766 } |
|
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|
1767 |
|
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changeset
|
1768 if (calc_cond) |
|
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|
1769 { |
|
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changeset
|
1770 // Calculation of 1-norm of inv(*this) |
|
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|
1771 for (octave_idx_type i = 0; i < nm; i++) |
|
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changeset
|
1772 work[i] = 0.; |
|
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|
1773 |
|
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changeset
|
1774 for (octave_idx_type j = 0; j < nr; j++) |
|
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|
1775 { |
|
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changeset
|
1776 work[j] = 1.; |
|
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|
1777 |
|
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changeset
|
1778 for (octave_idx_type k = j; k >= 0; k--) |
|
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|
1779 { |
|
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|
1780 octave_idx_type iidx = perm[k]; |
|
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|
1781 |
|
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|
1782 if (work[k] != 0.) |
|
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|
1783 { |
|
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changeset
|
1784 double tmp = work[k] / data (cidx (iidx+1)-1); |
|
10314
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changeset
|
1785 work[k] = tmp; |
|
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|
1786 for (octave_idx_type i = cidx (iidx); |
|
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changeset
|
1787 i < cidx (iidx+1)-1; i++) |
|
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|
1788 { |
|
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Rik <rik@octave.org>
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|
1789 octave_idx_type idx2 = ridx (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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|
1790 work[idx2] = work[idx2] - tmp * data (i); |
|
10314
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|
1791 } |
|
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changeset
|
1792 } |
|
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diff
changeset
|
1793 } |
|
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|
1794 double atmp = 0; |
|
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untabify liboctave C++ sources
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|
1795 for (octave_idx_type i = 0; i < j+1; i++) |
|
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|
1796 { |
|
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Rik <rik@octave.org>
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|
1797 atmp += fabs (work[i]); |
|
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|
1798 work[i] = 0.; |
|
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|
1799 } |
|
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|
1800 if (atmp > ainvnorm) |
|
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untabify liboctave C++ sources
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|
1801 ainvnorm = atmp; |
|
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|
1802 } |
|
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|
1803 rcond = 1. / ainvnorm / anorm; |
|
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|
1804 } |
|
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|
1805 } |
|
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|
1806 else |
|
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|
1807 { |
|
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|
1808 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
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|
1809 retval.resize (nc, b_nc); |
|
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|
1810 |
|
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|
1811 for (octave_idx_type j = 0; j < b_nc; j++) |
|
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|
1812 { |
|
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|
1813 for (octave_idx_type i = 0; i < nr; i++) |
|
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untabify liboctave C++ sources
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|
1814 work[i] = b(i,j); |
|
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untabify liboctave C++ sources
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|
1815 for (octave_idx_type i = nr; i < nc; i++) |
|
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|
1816 work[i] = 0.; |
|
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|
1817 |
|
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|
1818 for (octave_idx_type k = nc-1; k >= 0; k--) |
|
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|
1819 { |
|
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|
1820 if (work[k] != 0.) |
|
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|
1821 { |
|
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|
1822 if (ridx (cidx (k+1)-1) != k || |
|
3d8ace26c5b4
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|
1823 data (cidx (k+1)-1) == 0.) |
|
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|
1824 { |
|
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|
1825 err = -2; |
|
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|
1826 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
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|
1827 } |
|
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|
1828 |
|
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|
1829 double tmp = work[k] / data (cidx (k+1)-1); |
|
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|
1830 work[k] = tmp; |
|
15018
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Rik <rik@octave.org>
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changeset
|
1831 for (octave_idx_type i = cidx (k); i < cidx (k+1)-1; i++) |
|
10314
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|
1832 { |
|
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Rik <rik@octave.org>
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diff
changeset
|
1833 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
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changeset
|
1834 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
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diff
changeset
|
1835 } |
|
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|
1836 } |
|
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changeset
|
1837 } |
|
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|
1838 |
|
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changeset
|
1839 for (octave_idx_type i = 0; i < nc; i++) |
|
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|
1840 retval.xelem (i, j) = work[i]; |
|
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|
1841 } |
|
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changeset
|
1842 |
|
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changeset
|
1843 if (calc_cond) |
|
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|
1844 { |
|
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|
1845 // Calculation of 1-norm of inv(*this) |
|
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untabify liboctave C++ sources
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|
1846 for (octave_idx_type i = 0; i < nm; i++) |
|
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changeset
|
1847 work[i] = 0.; |
|
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|
1848 |
|
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changeset
|
1849 for (octave_idx_type j = 0; j < nr; j++) |
|
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|
1850 { |
|
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changeset
|
1851 work[j] = 1.; |
|
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|
1852 |
|
07ebe522dac2
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changeset
|
1853 for (octave_idx_type k = j; k >= 0; k--) |
|
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diff
changeset
|
1854 { |
|
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changeset
|
1855 if (work[k] != 0.) |
|
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|
1856 { |
|
15018
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maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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|
1857 double tmp = work[k] / data (cidx (k+1)-1); |
|
10314
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changeset
|
1858 work[k] = tmp; |
|
15018
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Rik <rik@octave.org>
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changeset
|
1859 for (octave_idx_type i = cidx (k); i < cidx (k+1)-1; i++) |
|
10314
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changeset
|
1860 { |
|
15018
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Rik <rik@octave.org>
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diff
changeset
|
1861 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
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Rik <rik@octave.org>
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changeset
|
1862 work[iidx] = work[iidx] - tmp * data (i); |
|
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|
1863 } |
|
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|
1864 } |
|
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changeset
|
1865 } |
|
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changeset
|
1866 double atmp = 0; |
|
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|
1867 for (octave_idx_type i = 0; i < j+1; i++) |
|
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|
1868 { |
|
15018
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changeset
|
1869 atmp += fabs (work[i]); |
|
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changeset
|
1870 work[i] = 0.; |
|
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|
1871 } |
|
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|
1872 if (atmp > ainvnorm) |
|
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|
1873 ainvnorm = atmp; |
|
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|
1874 } |
|
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|
1875 rcond = 1. / ainvnorm / anorm; |
|
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|
1876 } |
|
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changeset
|
1877 } |
|
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|
1878 |
|
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changeset
|
1879 triangular_error: |
|
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|
1880 if (err != 0) |
|
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|
1881 { |
|
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changeset
|
1882 if (sing_handler) |
|
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|
1883 { |
|
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changeset
|
1884 sing_handler (rcond); |
|
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|
1885 mattype.mark_as_rectangular (); |
|
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changeset
|
1886 } |
|
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changeset
|
1887 else |
|
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changeset
|
1888 (*current_liboctave_error_handler) |
|
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|
1889 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
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|
1890 rcond); |
|
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changeset
|
1891 } |
|
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changeset
|
1892 |
|
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changeset
|
1893 volatile double rcond_plus_one = rcond + 1.0; |
|
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|
1894 |
|
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|
1895 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
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changeset
|
1896 { |
|
07ebe522dac2
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changeset
|
1897 err = -2; |
|
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changeset
|
1898 |
|
07ebe522dac2
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changeset
|
1899 if (sing_handler) |
|
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changeset
|
1900 { |
|
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changeset
|
1901 sing_handler (rcond); |
|
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changeset
|
1902 mattype.mark_as_rectangular (); |
|
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1903 } |
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1904 else |
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1905 (*current_liboctave_error_handler) |
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1906 ("matrix singular to machine precision, rcond = %g", |
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1907 rcond); |
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1908 } |
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1909 } |
| 5164 | 1910 else |
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1911 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 1912 } |
| 1913 | |
| 1914 return retval; | |
| 1915 } | |
| 1916 | |
| 1917 SparseMatrix | |
| 5785 | 1918 SparseMatrix::utsolve (MatrixType &mattype, const SparseMatrix& b, |
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1919 octave_idx_type& err, double& rcond, |
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1920 solve_singularity_handler sing_handler, |
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1921 bool calc_cond) const |
| 5164 | 1922 { |
| 1923 SparseMatrix retval; | |
| 1924 | |
| 5275 | 1925 octave_idx_type nr = rows (); |
| 1926 octave_idx_type nc = cols (); | |
| 5630 | 1927 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 1928 err = 0; |
| 1929 | |
| 6924 | 1930 if (nr != b.rows ()) |
| 5164 | 1931 (*current_liboctave_error_handler) |
| 1932 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 1933 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 1934 retval = SparseMatrix (nc, b.cols ()); | |
| 5164 | 1935 else |
| 1936 { | |
| 1937 // Print spparms("spumoni") info if requested | |
| 1938 int typ = mattype.type (); | |
| 1939 mattype.info (); | |
| 1940 | |
| 5785 | 1941 if (typ == MatrixType::Permuted_Upper || |
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1942 typ == MatrixType::Upper) |
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1943 { |
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1944 double anorm = 0.; |
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1945 double ainvnorm = 0.; |
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1946 rcond = 1.; |
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1947 |
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1948 if (calc_cond) |
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1949 { |
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1950 // Calculate the 1-norm of matrix for rcond calculation |
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1951 for (octave_idx_type j = 0; j < nc; j++) |
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1952 { |
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1953 double atmp = 0.; |
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1954 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
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1955 atmp += fabs (data (i)); |
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1956 if (atmp > anorm) |
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1957 anorm = atmp; |
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1958 } |
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1959 } |
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1960 |
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1961 octave_idx_type b_nc = b.cols (); |
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1962 octave_idx_type b_nz = b.nnz (); |
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1963 retval = SparseMatrix (nc, b_nc, b_nz); |
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1964 retval.xcidx (0) = 0; |
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1965 octave_idx_type ii = 0; |
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1966 octave_idx_type x_nz = b_nz; |
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1967 |
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1968 if (typ == MatrixType::Permuted_Upper) |
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1969 { |
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1970 octave_idx_type *perm = mattype.triangular_perm (); |
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1971 OCTAVE_LOCAL_BUFFER (double, work, nm); |
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1972 |
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1973 OCTAVE_LOCAL_BUFFER (octave_idx_type, rperm, nc); |
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1974 for (octave_idx_type i = 0; i < nc; i++) |
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1975 rperm[perm[i]] = i; |
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1976 |
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1977 for (octave_idx_type j = 0; j < b_nc; j++) |
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1978 { |
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1979 for (octave_idx_type i = 0; i < nm; i++) |
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1980 work[i] = 0.; |
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1981 for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++) |
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1982 work[b.ridx (i)] = b.data (i); |
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1983 |
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1984 for (octave_idx_type k = nc-1; k >= 0; k--) |
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1985 { |
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1986 octave_idx_type kidx = perm[k]; |
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1987 |
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1988 if (work[k] != 0.) |
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1989 { |
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1990 if (ridx (cidx (kidx+1)-1) != k || |
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1991 data (cidx (kidx+1)-1) == 0.) |
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1992 { |
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1993 err = -2; |
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1994 goto triangular_error; |
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1995 } |
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1996 |
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1997 double tmp = work[k] / data (cidx (kidx+1)-1); |
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1998 work[k] = tmp; |
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1999 for (octave_idx_type i = cidx (kidx); |
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2000 i < cidx (kidx+1)-1; i++) |
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2001 { |
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2002 octave_idx_type iidx = ridx (i); |
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2003 work[iidx] = work[iidx] - tmp * data (i); |
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2004 } |
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2005 } |
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2006 } |
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2007 |
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2008 // Count non-zeros in work vector and adjust space in |
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2009 // retval if needed |
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2010 octave_idx_type new_nnz = 0; |
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2011 for (octave_idx_type i = 0; i < nc; i++) |
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2012 if (work[i] != 0.) |
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2013 new_nnz++; |
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2014 |
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2015 if (ii + new_nnz > x_nz) |
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2016 { |
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2017 // Resize the sparse matrix |
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2018 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
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2019 retval.change_capacity (sz); |
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2020 x_nz = sz; |
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2021 } |
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2022 |
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2023 for (octave_idx_type i = 0; i < nc; i++) |
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2024 if (work[rperm[i]] != 0.) |
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2025 { |
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2026 retval.xridx (ii) = i; |
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2027 retval.xdata (ii++) = work[rperm[i]]; |
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2028 } |
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2029 retval.xcidx (j+1) = ii; |
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2030 } |
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2031 |
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2032 retval.maybe_compress (); |
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2033 |
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2034 if (calc_cond) |
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2035 { |
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2036 // Calculation of 1-norm of inv(*this) |
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2037 for (octave_idx_type i = 0; i < nm; i++) |
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2038 work[i] = 0.; |
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2039 |
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2040 for (octave_idx_type j = 0; j < nr; j++) |
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John W. Eaton <jwe@octave.org>
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changeset
|
2041 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2042 work[j] = 1.; |
|
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2043 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2044 for (octave_idx_type k = j; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2045 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2046 octave_idx_type iidx = perm[k]; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2047 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2048 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2049 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2050 double tmp = work[k] / data (cidx (iidx+1)-1); |
|
10314
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untabify liboctave C++ sources
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changeset
|
2051 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
|
2052 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
|
2053 i < cidx (iidx+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2054 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2055 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
|
2056 work[idx2] = work[idx2] - tmp * data (i); |
|
10314
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diff
changeset
|
2057 } |
|
07ebe522dac2
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10158
diff
changeset
|
2058 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2059 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2060 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2061 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
|
2062 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
2063 atmp += fabs (work[i]); |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
2064 work[i] = 0.; |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2065 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2066 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2067 ainvnorm = atmp; |
|
07ebe522dac2
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diff
changeset
|
2068 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2069 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2070 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2071 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2072 else |
|
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10158
diff
changeset
|
2073 { |
|
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untabify liboctave C++ sources
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diff
changeset
|
2074 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2075 |
|
07ebe522dac2
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diff
changeset
|
2076 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
|
2077 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2078 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2079 work[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2080 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
|
2081 work[b.ridx (i)] = b.data (i); |
|
10314
07ebe522dac2
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diff
changeset
|
2082 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2083 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
|
2084 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2085 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2086 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2087 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
|
2088 data (cidx (k+1)-1) == 0.) |
|
10314
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2089 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2090 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2091 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2092 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2093 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2094 double tmp = work[k] / data (cidx (k+1)-1); |
|
10314
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2095 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2096 for (octave_idx_type i = cidx (k); i < cidx (k+1)-1; i++) |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
2097 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2098 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
|
2099 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
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parents:
10158
diff
changeset
|
2100 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2101 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2102 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2103 |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2104 // Count non-zeros in work vector and adjust space in |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2105 // retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2106 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2107 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
|
2108 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2109 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2110 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2111 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2112 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2113 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2114 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
|
2115 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2116 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2117 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2118 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2119 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
|
2120 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2121 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2122 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2123 retval.xdata (ii++) = work[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2124 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2125 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2126 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2127 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2128 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2129 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2130 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2131 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2132 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2133 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2134 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2135 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2136 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2137 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2138 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2139 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2140 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
|
2141 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2142 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2143 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2144 double tmp = work[k] / data (cidx (k+1)-1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2145 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2146 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
|
2147 i < cidx (k+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2148 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2149 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
|
2150 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2151 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2152 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2153 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2154 double atmp = 0; |
|
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|
2155 for (octave_idx_type i = 0; i < j+1; i++) |
|
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|
2156 { |
|
15018
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Rik <rik@octave.org>
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|
2157 atmp += fabs (work[i]); |
|
10314
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|
2158 work[i] = 0.; |
|
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|
2159 } |
|
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|
2160 if (atmp > ainvnorm) |
|
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|
2161 ainvnorm = atmp; |
|
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|
2162 } |
|
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|
2163 rcond = 1. / ainvnorm / anorm; |
|
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|
2164 } |
|
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|
2165 } |
|
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|
2166 |
|
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|
2167 triangular_error: |
|
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|
2168 if (err != 0) |
|
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|
2169 { |
|
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|
2170 if (sing_handler) |
|
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|
2171 { |
|
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|
2172 sing_handler (rcond); |
|
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|
2173 mattype.mark_as_rectangular (); |
|
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|
2174 } |
|
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|
2175 else |
|
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|
2176 (*current_liboctave_error_handler) |
|
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|
2177 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
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|
2178 rcond); |
|
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|
2179 } |
|
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diff
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|
2180 |
|
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|
2181 volatile double rcond_plus_one = rcond + 1.0; |
|
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|
2182 |
|
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|
2183 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
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|
2184 { |
|
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|
2185 err = -2; |
|
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|
2186 |
|
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|
2187 if (sing_handler) |
|
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|
2188 { |
|
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|
2189 sing_handler (rcond); |
|
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|
2190 mattype.mark_as_rectangular (); |
|
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|
2191 } |
|
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|
2192 else |
|
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|
2193 (*current_liboctave_error_handler) |
|
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|
2194 ("matrix singular to machine precision, rcond = %g", |
|
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|
2195 rcond); |
|
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|
2196 } |
|
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|
2197 } |
| 5164 | 2198 else |
|
10314
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|
2199 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 2200 } |
| 2201 return retval; | |
| 2202 } | |
| 2203 | |
| 2204 ComplexMatrix | |
|
11586
12df7854fa7c
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|
2205 SparseMatrix::utsolve (MatrixType &mattype, const ComplexMatrix& b, |
|
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|
2206 octave_idx_type& err, double& rcond, |
|
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|
2207 solve_singularity_handler sing_handler, |
|
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|
2208 bool calc_cond) const |
| 5164 | 2209 { |
| 2210 ComplexMatrix retval; | |
| 2211 | |
| 5275 | 2212 octave_idx_type nr = rows (); |
| 2213 octave_idx_type nc = cols (); | |
| 5630 | 2214 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 2215 err = 0; |
| 2216 | |
| 6924 | 2217 if (nr != b.rows ()) |
| 5164 | 2218 (*current_liboctave_error_handler) |
| 2219 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 2220 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 2221 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0)); | |
| 5164 | 2222 else |
| 2223 { | |
| 2224 // Print spparms("spumoni") info if requested | |
| 2225 int typ = mattype.type (); | |
| 2226 mattype.info (); | |
|
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|
2227 |
| 5785 | 2228 if (typ == MatrixType::Permuted_Upper || |
|
10314
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|
2229 typ == MatrixType::Upper) |
|
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|
2230 { |
|
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|
2231 double anorm = 0.; |
|
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untabify liboctave C++ sources
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|
2232 double ainvnorm = 0.; |
|
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untabify liboctave C++ sources
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|
2233 octave_idx_type b_nc = b.cols (); |
|
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untabify liboctave C++ sources
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|
2234 rcond = 1.; |
|
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|
2235 |
|
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changeset
|
2236 if (calc_cond) |
|
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|
2237 { |
|
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|
2238 // Calculate the 1-norm of matrix for rcond calculation |
|
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untabify liboctave C++ sources
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|
2239 for (octave_idx_type j = 0; j < nc; j++) |
|
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|
2240 { |
|
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changeset
|
2241 double atmp = 0.; |
|
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Rik <rik@octave.org>
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diff
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|
2242 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>
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diff
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|
2243 atmp += fabs (data (i)); |
|
10314
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|
2244 if (atmp > anorm) |
|
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|
2245 anorm = atmp; |
|
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|
2246 } |
|
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|
2247 } |
|
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|
2248 |
|
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|
2249 if (typ == MatrixType::Permuted_Upper) |
|
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|
2250 { |
|
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changeset
|
2251 retval.resize (nc, b_nc); |
|
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|
2252 octave_idx_type *perm = mattype.triangular_perm (); |
|
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untabify liboctave C++ sources
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|
2253 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
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|
2254 |
|
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changeset
|
2255 for (octave_idx_type j = 0; j < b_nc; j++) |
|
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|
2256 { |
|
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changeset
|
2257 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
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|
2258 cwork[i] = b(i,j); |
|
07ebe522dac2
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|
2259 for (octave_idx_type i = nr; i < nc; i++) |
|
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|
2260 cwork[i] = 0.; |
|
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|
2261 |
|
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changeset
|
2262 for (octave_idx_type k = nc-1; k >= 0; k--) |
|
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|
2263 { |
|
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changeset
|
2264 octave_idx_type kidx = perm[k]; |
|
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|
2265 |
|
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|
2266 if (cwork[k] != 0.) |
|
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|
2267 { |
|
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|
2268 if (ridx (cidx (kidx+1)-1) != k || |
|
3d8ace26c5b4
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changeset
|
2269 data (cidx (kidx+1)-1) == 0.) |
|
10314
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|
2270 { |
|
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|
2271 err = -2; |
|
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|
2272 goto triangular_error; |
|
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|
2273 } |
|
10314
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|
2274 |
|
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|
2275 Complex tmp = cwork[k] / data (cidx (kidx+1)-1); |
|
10314
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|
2276 cwork[k] = tmp; |
|
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changeset
|
2277 for (octave_idx_type i = cidx (kidx); |
|
3d8ace26c5b4
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|
2278 i < cidx (kidx+1)-1; i++) |
|
10314
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|
2279 { |
|
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changeset
|
2280 octave_idx_type iidx = ridx (i); |
|
3d8ace26c5b4
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|
2281 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
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|
2282 } |
|
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changeset
|
2283 } |
|
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changeset
|
2284 } |
|
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changeset
|
2285 |
|
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changeset
|
2286 for (octave_idx_type i = 0; i < nc; i++) |
|
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|
2287 retval.xelem (perm[i], j) = cwork[i]; |
|
07ebe522dac2
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|
2288 } |
|
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changeset
|
2289 |
|
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changeset
|
2290 if (calc_cond) |
|
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2291 { |
|
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diff
changeset
|
2292 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2293 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2294 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2295 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2296 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2297 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
|
2298 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2299 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2300 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2301 for (octave_idx_type k = j; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2302 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2303 octave_idx_type iidx = perm[k]; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2304 |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2305 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2306 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2307 double tmp = work[k] / data (cidx (iidx+1)-1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2308 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2309 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
|
2310 i < cidx (iidx+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2311 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2312 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
|
2313 work[idx2] = work[idx2] - tmp * data (i); |
|
10314
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2314 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2315 } |
|
07ebe522dac2
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diff
changeset
|
2316 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2317 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2318 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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10158
diff
changeset
|
2319 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2320 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2321 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2322 } |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2323 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2324 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2325 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2326 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2327 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2328 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2329 else |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2330 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2331 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2332 retval.resize (nc, b_nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2333 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2334 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
|
2335 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2336 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
|
2337 cwork[i] = b(i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2338 for (octave_idx_type i = nr; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2339 cwork[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2340 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2341 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
|
2342 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2343 if (cwork[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2344 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2345 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
|
2346 data (cidx (k+1)-1) == 0.) |
|
10314
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2347 { |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2348 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2349 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2350 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2351 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2352 Complex tmp = cwork[k] / data (cidx (k+1)-1); |
|
10314
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2353 cwork[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2354 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>
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10158
diff
changeset
|
2355 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2356 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
|
2357 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2358 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2359 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2360 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2361 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2362 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
|
2363 retval.xelem (i, j) = cwork[i]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2364 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2365 |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2366 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2367 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2368 // 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
|
2369 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2370 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2371 work[i] = 0.; |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2372 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2373 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2374 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2375 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2376 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2377 for (octave_idx_type k = j; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2378 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2379 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2380 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2381 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
|
2382 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2383 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
|
2384 i < cidx (k+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2385 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2386 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
|
2387 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2388 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2389 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2390 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2391 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2392 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
|
2393 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2394 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2395 work[i] = 0.; |
|
07ebe522dac2
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parents:
10158
diff
changeset
|
2396 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2397 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2398 ainvnorm = atmp; |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2399 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2400 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2401 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2402 } |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2403 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2404 triangular_error: |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2405 if (err != 0) |
|
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untabify liboctave C++ sources
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diff
changeset
|
2406 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2407 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2408 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2409 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2410 mattype.mark_as_rectangular (); |
|
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untabify liboctave C++ sources
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diff
changeset
|
2411 } |
|
07ebe522dac2
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diff
changeset
|
2412 else |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2413 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2414 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2415 rcond); |
|
07ebe522dac2
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diff
changeset
|
2416 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2417 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2418 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2419 |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
2420 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2421 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2422 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2423 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2424 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2425 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2426 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2427 mattype.mark_as_rectangular (); |
|
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untabify liboctave C++ sources
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diff
changeset
|
2428 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2429 else |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2430 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2431 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2432 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2433 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2434 } |
| 5164 | 2435 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2436 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 2437 } |
| 2438 | |
| 2439 return retval; | |
| 2440 } | |
| 2441 | |
| 2442 SparseComplexMatrix | |
| 5785 | 2443 SparseMatrix::utsolve (MatrixType &mattype, const SparseComplexMatrix& b, |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2444 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2445 solve_singularity_handler sing_handler, |
|
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untabify liboctave C++ sources
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diff
changeset
|
2446 bool calc_cond) const |
| 5164 | 2447 { |
| 2448 SparseComplexMatrix retval; | |
| 2449 | |
| 5275 | 2450 octave_idx_type nr = rows (); |
| 2451 octave_idx_type nc = cols (); | |
| 5630 | 2452 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 2453 err = 0; |
| 2454 | |
| 6924 | 2455 if (nr != b.rows ()) |
| 5164 | 2456 (*current_liboctave_error_handler) |
| 2457 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 2458 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 2459 retval = SparseComplexMatrix (nc, b.cols ()); | |
| 5164 | 2460 else |
| 2461 { | |
| 2462 // Print spparms("spumoni") info if requested | |
| 2463 int typ = mattype.type (); | |
| 2464 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2465 |
| 5785 | 2466 if (typ == MatrixType::Permuted_Upper || |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2467 typ == MatrixType::Upper) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2468 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2469 double anorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2470 double ainvnorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2471 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2472 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2473 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2474 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2475 // Calculate the 1-norm of matrix for rcond calculation |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2476 for (octave_idx_type j = 0; j < nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2477 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2478 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2479 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
|
2480 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2481 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2482 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2483 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2484 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2485 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2486 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2487 octave_idx_type b_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2488 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
|
2489 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2490 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2491 octave_idx_type x_nz = b_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2492 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2493 if (typ == MatrixType::Permuted_Upper) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2494 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2495 octave_idx_type *perm = mattype.triangular_perm (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2496 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2497 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2498 OCTAVE_LOCAL_BUFFER (octave_idx_type, rperm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2499 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2500 rperm[perm[i]] = i; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2501 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2502 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2503 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2504 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2505 cwork[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2506 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
|
2507 cwork[b.ridx (i)] = b.data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2508 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2509 for (octave_idx_type k = nc-1; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2510 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2511 octave_idx_type kidx = perm[k]; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2512 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2513 if (cwork[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2514 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2515 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
|
2516 data (cidx (kidx+1)-1) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2517 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2518 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2519 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
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11574
diff
changeset
|
2520 } |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
2521 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2522 Complex tmp = cwork[k] / data (cidx (kidx+1)-1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2523 cwork[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2524 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
|
2525 i < cidx (kidx+1)-1; i++) |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
2526 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2527 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
|
2528 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2529 } |
|
07ebe522dac2
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diff
changeset
|
2530 } |
|
07ebe522dac2
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diff
changeset
|
2531 } |
|
07ebe522dac2
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diff
changeset
|
2532 |
|
07ebe522dac2
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diff
changeset
|
2533 // Count non-zeros in work vector and adjust space in |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
2534 // retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
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changeset
|
2535 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2536 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
2537 if (cwork[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2538 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2539 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2540 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2541 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2542 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2543 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
|
2544 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2545 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2546 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2547 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2548 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2549 if (cwork[rperm[i]] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2550 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2551 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2552 retval.xdata (ii++) = cwork[rperm[i]]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2553 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2554 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2555 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2556 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2557 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2558 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2559 if (calc_cond) |
|
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 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2562 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2563 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2564 work[i] = 0.; |
|
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 for (octave_idx_type j = 0; j < nr; j++) |
|
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 work[j] = 1.; |
|
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 k = j; k >= 0; k--) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2571 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2572 octave_idx_type iidx = perm[k]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2573 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2574 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2575 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2576 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
|
2577 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2578 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
|
2579 i < cidx (iidx+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2580 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2581 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
|
2582 work[idx2] = work[idx2] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2583 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2584 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2585 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2586 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2587 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
|
2588 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2589 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2590 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2591 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2592 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2593 ainvnorm = atmp; |
|
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 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2596 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2597 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2598 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2599 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2600 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2601 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2602 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
|
2603 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2604 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2605 cwork[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2606 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
|
2607 cwork[b.ridx (i)] = b.data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2608 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2609 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
|
2610 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2611 if (cwork[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2612 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2613 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
|
2614 data (cidx (k+1)-1) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2615 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2616 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2617 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2618 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2619 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2620 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
|
2621 cwork[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2622 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
|
2623 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2624 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
|
2625 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2626 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2627 } |
|
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 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2630 // 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
|
2631 // retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2632 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2633 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2634 if (cwork[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2635 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2636 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2637 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2638 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2639 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2640 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
|
2641 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2642 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2643 } |
|
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 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2646 if (cwork[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2647 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2648 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2649 retval.xdata (ii++) = cwork[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2650 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2651 retval.xcidx (j+1) = ii; |
|
10314
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 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2654 retval.maybe_compress (); |
|
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untabify liboctave C++ sources
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diff
changeset
|
2655 |
|
07ebe522dac2
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changeset
|
2656 if (calc_cond) |
|
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untabify liboctave C++ sources
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diff
changeset
|
2657 { |
|
07ebe522dac2
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diff
changeset
|
2658 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2659 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
2660 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
2661 work[i] = 0.; |
|
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untabify liboctave C++ sources
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diff
changeset
|
2662 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2663 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2664 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2665 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2666 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2667 for (octave_idx_type k = j; k >= 0; k--) |
|
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untabify liboctave C++ sources
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diff
changeset
|
2668 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2669 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2670 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2671 double tmp = work[k] / data (cidx (k+1)-1); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2672 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2673 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
|
2674 i < cidx (k+1)-1; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2675 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2676 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
|
2677 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2678 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2679 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2680 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2681 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2682 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
|
2683 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2684 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2685 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2686 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2687 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2688 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2689 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
2690 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2691 } |
|
07ebe522dac2
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diff
changeset
|
2692 } |
|
07ebe522dac2
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diff
changeset
|
2693 |
|
07ebe522dac2
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diff
changeset
|
2694 triangular_error: |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2695 if (err != 0) |
|
07ebe522dac2
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diff
changeset
|
2696 { |
|
07ebe522dac2
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diff
changeset
|
2697 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2698 { |
|
07ebe522dac2
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diff
changeset
|
2699 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2700 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2701 } |
|
07ebe522dac2
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10158
diff
changeset
|
2702 else |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2703 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2704 ("SparseMatrix::solve 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
|
2705 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2706 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2707 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2708 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2709 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2710 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2711 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2712 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2713 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2714 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2715 { |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2716 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2717 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2718 } |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2719 else |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2720 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2721 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2722 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
2723 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2724 } |
| 5164 | 2725 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2726 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 2727 } |
| 2728 | |
| 2729 return retval; | |
| 2730 } | |
| 2731 | |
| 2732 Matrix | |
| 5785 | 2733 SparseMatrix::ltsolve (MatrixType &mattype, const Matrix& b, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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parents:
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diff
changeset
|
2734 octave_idx_type& err, double& rcond, |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
2735 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2736 bool calc_cond) const |
| 5164 | 2737 { |
| 2738 Matrix retval; | |
| 2739 | |
| 5275 | 2740 octave_idx_type nr = rows (); |
| 2741 octave_idx_type nc = cols (); | |
| 5630 | 2742 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 2743 err = 0; |
| 2744 | |
| 6924 | 2745 if (nr != b.rows ()) |
| 5164 | 2746 (*current_liboctave_error_handler) |
| 2747 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 2748 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 2749 retval = Matrix (nc, b.cols (), 0.0); | |
| 5164 | 2750 else |
| 2751 { | |
| 2752 // Print spparms("spumoni") info if requested | |
| 2753 int typ = mattype.type (); | |
| 2754 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2755 |
| 5785 | 2756 if (typ == MatrixType::Permuted_Lower || |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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parents:
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diff
changeset
|
2757 typ == MatrixType::Lower) |
|
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untabify liboctave C++ sources
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diff
changeset
|
2758 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2759 double anorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
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diff
changeset
|
2760 double ainvnorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2761 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2762 rcond = 1.; |
|
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untabify liboctave C++ sources
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diff
changeset
|
2763 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2764 if (calc_cond) |
|
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diff
changeset
|
2765 { |
|
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diff
changeset
|
2766 // Calculate the 1-norm of matrix for rcond calculation |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
2767 for (octave_idx_type j = 0; j < nc; j++) |
|
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changeset
|
2768 { |
|
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diff
changeset
|
2769 double atmp = 0.; |
|
15018
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maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2770 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>
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diff
changeset
|
2771 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
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changeset
|
2772 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
2773 anorm = atmp; |
|
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diff
changeset
|
2774 } |
|
07ebe522dac2
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diff
changeset
|
2775 } |
|
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diff
changeset
|
2776 |
|
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changeset
|
2777 if (typ == MatrixType::Permuted_Lower) |
|
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changeset
|
2778 { |
|
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changeset
|
2779 retval.resize (nc, b_nc); |
|
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untabify liboctave C++ sources
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changeset
|
2780 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
2781 octave_idx_type *perm = mattype.triangular_perm (); |
|
07ebe522dac2
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changeset
|
2782 |
|
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changeset
|
2783 for (octave_idx_type j = 0; j < b_nc; j++) |
|
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changeset
|
2784 { |
|
07ebe522dac2
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changeset
|
2785 if (nc > nr) |
|
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changeset
|
2786 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
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changeset
|
2787 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
2788 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
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changeset
|
2789 work[perm[i]] = b(i,j); |
|
07ebe522dac2
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diff
changeset
|
2790 |
|
07ebe522dac2
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diff
changeset
|
2791 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
2792 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2793 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2794 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2795 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2796 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2797 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2798 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
|
2799 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2800 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2801 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2802 mini = i; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2803 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2804 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2805 if (minr != k || data (mini) == 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2806 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2807 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2808 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2809 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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 double tmp = work[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2812 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2813 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
|
2814 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2815 if (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2816 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2817 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2818 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
|
2819 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2820 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2821 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2822 } |
|
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 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
|
2825 retval(i, j) = work[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2826 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2827 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2828 if (calc_cond) |
|
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 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2831 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2832 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2833 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2834 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2835 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2836 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2837 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2838 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2839 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2840 if (work[k] != 0.) |
|
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 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2843 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2844 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2845 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
|
2846 i < cidx (k+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2847 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2848 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2849 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2850 mini = i; |
|
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 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2853 double tmp = work[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2854 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2855 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
|
2856 i < cidx (k+1); i++) |
|
10314
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 (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2859 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2860 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2861 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
|
2862 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2863 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2864 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2865 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2866 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2867 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2868 for (octave_idx_type i = j; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2869 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2870 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2871 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2872 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2873 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2874 ainvnorm = atmp; |
|
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 rcond = 1. / ainvnorm / anorm; |
|
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 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2879 else |
|
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 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2882 retval.resize (nc, b_nc, 0.); |
|
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 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
|
2885 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2886 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2887 work[i] = b(i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2888 for (octave_idx_type i = nr; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2889 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2890 for (octave_idx_type k = 0; k < nc; k++) |
|
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 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2893 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2894 if (ridx (cidx (k)) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2895 data (cidx (k)) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2896 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2897 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2898 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2899 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2900 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2901 double tmp = work[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2902 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2903 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
|
2904 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2905 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2906 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
|
2907 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2908 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2909 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2910 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2911 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2912 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2913 retval.xelem (i, j) = work[i]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2914 } |
|
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 if (calc_cond) |
|
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 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2919 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2920 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2921 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2922 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2923 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2924 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2925 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2926 for (octave_idx_type k = j; k < nc; k++) |
|
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 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2929 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2930 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2931 double tmp = work[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2932 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2933 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
|
2934 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2935 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2936 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
|
2937 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2938 } |
|
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 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2941 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2942 for (octave_idx_type i = j; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2943 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
2944 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2945 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2946 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2947 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2948 ainvnorm = atmp; |
|
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 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2951 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2952 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2953 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2954 triangular_error: |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2955 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2956 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2957 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2958 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2959 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2960 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2961 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2962 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2963 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2964 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2965 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2966 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2967 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2968 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2969 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2970 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2971 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2972 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2973 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2974 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2975 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2976 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2977 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2978 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2979 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2980 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2981 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2982 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2983 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2984 } |
| 5164 | 2985 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2986 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 2987 } |
| 2988 | |
| 2989 return retval; | |
| 2990 } | |
| 2991 | |
| 2992 SparseMatrix | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2993 SparseMatrix::ltsolve (MatrixType &mattype, const SparseMatrix& b, |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
2994 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2995 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
2996 bool calc_cond) const |
| 5164 | 2997 { |
| 2998 SparseMatrix retval; | |
| 2999 | |
| 5275 | 3000 octave_idx_type nr = rows (); |
| 3001 octave_idx_type nc = cols (); | |
| 5630 | 3002 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 3003 err = 0; |
| 3004 | |
| 6924 | 3005 if (nr != b.rows ()) |
| 5164 | 3006 (*current_liboctave_error_handler) |
| 3007 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 3008 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 3009 retval = SparseMatrix (nc, b.cols ()); | |
| 5164 | 3010 else |
| 3011 { | |
| 3012 // Print spparms("spumoni") info if requested | |
| 3013 int typ = mattype.type (); | |
| 3014 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3015 |
| 5785 | 3016 if (typ == MatrixType::Permuted_Lower || |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3017 typ == MatrixType::Lower) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3018 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3019 double anorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3020 double ainvnorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3021 rcond = 1.; |
|
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 (calc_cond) |
|
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 // Calculate the 1-norm of matrix for rcond calculation |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3026 for (octave_idx_type j = 0; j < nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3027 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3028 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3029 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
|
3030 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3031 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3032 anorm = atmp; |
|
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 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3035 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3036 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3037 octave_idx_type b_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3038 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
|
3039 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3040 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3041 octave_idx_type x_nz = b_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3042 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3043 if (typ == MatrixType::Permuted_Lower) |
|
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 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3046 octave_idx_type *perm = mattype.triangular_perm (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3047 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3048 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
|
3049 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3050 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3051 work[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3052 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
|
3053 work[perm[b.ridx (i)]] = b.data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3054 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3055 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3056 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3057 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3058 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3059 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3060 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3061 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3062 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
|
3063 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3064 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3065 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3066 mini = i; |
|
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 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3069 if (minr != k || data (mini) == 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3070 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3071 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3072 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3073 } |
|
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 double tmp = work[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3076 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3077 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
|
3078 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3079 if (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3080 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3081 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3082 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
|
3083 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3084 } |
|
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 } |
|
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 // 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
|
3089 // retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3090 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3091 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3092 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3093 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3094 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3095 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3096 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3097 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3098 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
|
3099 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3100 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3101 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3102 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3103 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3104 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3105 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3106 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3107 retval.xdata (ii++) = work[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3108 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3109 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3110 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3111 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3112 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3113 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3114 if (calc_cond) |
|
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 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3117 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3118 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3119 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3120 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3121 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3122 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3123 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3124 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3125 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3126 if (work[k] != 0.) |
|
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 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3129 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3130 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3131 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
|
3132 i < cidx (k+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3133 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3134 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3135 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3136 mini = i; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3137 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3138 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3139 double tmp = work[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3140 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3141 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
|
3142 i < cidx (k+1); i++) |
|
10314
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 (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3145 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3146 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3147 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
|
3148 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3149 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3150 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3151 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3152 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3153 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3154 for (octave_idx_type i = j; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3155 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3156 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3157 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3158 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3159 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3160 ainvnorm = atmp; |
|
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 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3163 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3164 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3165 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3166 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3167 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3168 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3169 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
|
3170 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3171 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3172 work[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3173 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
|
3174 work[b.ridx (i)] = b.data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3175 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3176 for (octave_idx_type k = 0; k < nc; k++) |
|
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>
parents:
10158
diff
changeset
|
3178 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3179 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3180 if (ridx (cidx (k)) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3181 data (cidx (k)) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3182 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3183 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3184 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3185 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3186 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3187 double tmp = work[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3188 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3189 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
|
3190 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3191 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
|
3192 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3193 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3194 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3195 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3196 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3197 // 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
|
3198 // retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3199 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3200 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3201 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3202 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3203 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3204 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3205 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3206 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3207 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
|
3208 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3209 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3210 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3211 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3212 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3213 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3214 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3215 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3216 retval.xdata (ii++) = work[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3217 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3218 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3219 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3220 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3221 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3222 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3223 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3224 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3225 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3226 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3227 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3228 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3229 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3230 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3231 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3232 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3233 for (octave_idx_type k = j; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3234 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3235 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3236 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3237 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3238 double tmp = work[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3239 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3240 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
|
3241 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3242 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3243 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
|
3244 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3245 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3246 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3247 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3248 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3249 for (octave_idx_type i = j; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3250 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3251 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3252 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3253 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3254 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3255 ainvnorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3256 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3257 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3258 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3259 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3260 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3261 triangular_error: |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3262 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3263 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3264 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3265 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3266 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3267 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3268 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3269 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3270 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3271 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3272 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3273 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3274 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3275 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3276 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3277 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3278 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3279 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3280 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3281 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3282 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3283 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
3284 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3285 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3286 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3287 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3288 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3289 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3290 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3291 } |
| 5164 | 3292 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3293 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 3294 } |
| 3295 | |
| 3296 return retval; | |
| 3297 } | |
| 3298 | |
| 3299 ComplexMatrix | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3300 SparseMatrix::ltsolve (MatrixType &mattype, const ComplexMatrix& b, |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3301 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3302 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3303 bool calc_cond) const |
| 5164 | 3304 { |
| 3305 ComplexMatrix retval; | |
| 3306 | |
| 5275 | 3307 octave_idx_type nr = rows (); |
| 3308 octave_idx_type nc = cols (); | |
| 5630 | 3309 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 3310 err = 0; |
| 3311 | |
| 6924 | 3312 if (nr != b.rows ()) |
| 5164 | 3313 (*current_liboctave_error_handler) |
| 3314 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 3315 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 3316 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0)); | |
| 5164 | 3317 else |
| 3318 { | |
| 3319 // Print spparms("spumoni") info if requested | |
| 3320 int typ = mattype.type (); | |
| 3321 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3322 |
| 5785 | 3323 if (typ == MatrixType::Permuted_Lower || |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3324 typ == MatrixType::Lower) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3325 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3326 double anorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
3327 double ainvnorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
3328 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3329 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
3330 |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
3331 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3332 { |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
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diff
changeset
|
3333 // Calculate the 1-norm of matrix for rcond calculation |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3334 for (octave_idx_type j = 0; j < nc; j++) |
|
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 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3337 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
|
3338 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3339 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3340 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
3341 } |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
3342 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3343 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3344 if (typ == MatrixType::Permuted_Lower) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3345 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3346 retval.resize (nc, b_nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3347 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3348 octave_idx_type *perm = mattype.triangular_perm (); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
3349 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3350 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
|
3351 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3352 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3353 cwork[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3354 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3355 cwork[perm[i]] = b(i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3356 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3357 for (octave_idx_type k = 0; k < nc; k++) |
|
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 if (cwork[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3360 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3361 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3362 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3363 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3364 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
|
3365 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3366 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3367 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3368 mini = i; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3369 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3370 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3371 if (minr != k || data (mini) == 0) |
|
10314
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 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3374 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3375 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3376 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3377 Complex tmp = cwork[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3378 cwork[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3379 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
|
3380 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3381 if (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
3382 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3383 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3384 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
|
3385 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3386 } |
|
07ebe522dac2
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parents:
10158
diff
changeset
|
3387 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3388 } |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
3389 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3390 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
|
3391 retval(i, j) = cwork[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3392 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
3393 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
3394 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
3395 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3396 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3397 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3398 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3399 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3400 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
3401 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
3402 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3403 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3404 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3405 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
3406 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
3407 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
3408 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
3409 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3410 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3411 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3412 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
|
3413 i < cidx (k+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3414 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3415 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3416 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3417 mini = i; |
|
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 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3420 double tmp = work[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3421 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3422 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
|
3423 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3424 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3425 if (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3426 continue; |
|
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 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
|
3429 work[iidx] = work[iidx] - tmp * data (i); |
|
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 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3432 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3433 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3434 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3435 for (octave_idx_type i = j; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3436 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3437 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3438 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3439 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3440 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3441 ainvnorm = atmp; |
|
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 rcond = 1. / ainvnorm / anorm; |
|
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 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3446 else |
|
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 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3449 retval.resize (nc, b_nc, 0.); |
|
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 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
|
3452 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3453 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3454 cwork[i] = b(i,j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3455 for (octave_idx_type i = nr; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3456 cwork[i] = 0.; |
|
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 for (octave_idx_type k = 0; k < nc; k++) |
|
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 if (cwork[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3461 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3462 if (ridx (cidx (k)) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3463 data (cidx (k)) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3464 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3465 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3466 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3467 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3468 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3469 Complex tmp = cwork[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3470 cwork[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3471 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
|
3472 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3473 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
|
3474 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3475 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3476 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3477 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3478 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3479 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3480 retval.xelem (i, j) = cwork[i]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3481 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3482 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3483 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3484 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3485 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3486 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3487 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3488 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3489 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3490 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3491 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3492 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3493 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3494 for (octave_idx_type k = j; k < nc; k++) |
|
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 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3497 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3498 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3499 double tmp = work[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3500 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3501 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
|
3502 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3503 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3504 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
|
3505 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3506 } |
|
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 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3509 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3510 for (octave_idx_type i = j; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3511 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3512 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3513 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3514 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3515 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3516 ainvnorm = atmp; |
|
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 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3519 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3520 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3521 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3522 triangular_error: |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3523 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3524 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3525 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3526 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3527 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3528 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3529 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3530 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3531 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3532 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3533 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3534 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3535 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3536 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3537 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3538 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3539 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3540 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3541 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3542 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3543 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3544 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3545 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3546 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3547 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3548 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3549 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3550 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3551 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3552 } |
| 5164 | 3553 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3554 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 3555 } |
| 3556 | |
| 3557 return retval; | |
| 3558 } | |
| 3559 | |
| 3560 SparseComplexMatrix | |
| 5785 | 3561 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
|
3562 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3563 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3564 bool calc_cond) const |
| 5164 | 3565 { |
| 3566 SparseComplexMatrix retval; | |
| 3567 | |
| 5275 | 3568 octave_idx_type nr = rows (); |
| 3569 octave_idx_type nc = cols (); | |
| 5630 | 3570 octave_idx_type nm = (nc > nr ? nc : nr); |
| 5164 | 3571 err = 0; |
| 3572 | |
| 6924 | 3573 if (nr != b.rows ()) |
| 5164 | 3574 (*current_liboctave_error_handler) |
| 3575 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 3576 else if (nr == 0 || nc == 0 || b.cols () == 0) |
| 3577 retval = SparseComplexMatrix (nc, b.cols ()); | |
| 5164 | 3578 else |
| 3579 { | |
| 3580 // Print spparms("spumoni") info if requested | |
| 3581 int typ = mattype.type (); | |
| 3582 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3583 |
| 5785 | 3584 if (typ == MatrixType::Permuted_Lower || |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3585 typ == MatrixType::Lower) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3586 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3587 double anorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3588 double ainvnorm = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3589 rcond = 1.; |
|
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 (calc_cond) |
|
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 // Calculate the 1-norm of matrix for rcond calculation |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3594 for (octave_idx_type j = 0; j < nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3595 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3596 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3597 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
|
3598 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3599 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3600 anorm = atmp; |
|
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 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3603 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3604 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3605 octave_idx_type b_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3606 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
|
3607 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3608 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3609 octave_idx_type x_nz = b_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3610 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3611 if (typ == MatrixType::Permuted_Lower) |
|
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 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3614 octave_idx_type *perm = mattype.triangular_perm (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3615 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3616 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
|
3617 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3618 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3619 cwork[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3620 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
|
3621 cwork[perm[b.ridx (i)]] = b.data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3622 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3623 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3624 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3625 if (cwork[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3626 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3627 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3628 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3629 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3630 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
|
3631 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3632 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3633 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3634 mini = i; |
|
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 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3637 if (minr != k || data (mini) == 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3638 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3639 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3640 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3641 } |
|
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 Complex tmp = cwork[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3644 cwork[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3645 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
|
3646 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3647 if (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3648 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3649 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3650 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
|
3651 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3652 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3653 } |
|
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 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3656 // 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
|
3657 // retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3658 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3659 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3660 if (cwork[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3661 new_nnz++; |
|
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 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3664 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3665 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3666 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
|
3667 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3668 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3669 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3670 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3671 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3672 if (cwork[i] != 0.) |
|
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 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3675 retval.xdata (ii++) = cwork[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3676 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3677 retval.xcidx (j+1) = ii; |
|
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 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3680 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3681 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3682 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3683 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3684 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3685 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3686 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3687 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3688 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3689 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3690 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3691 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3692 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3693 for (octave_idx_type k = 0; k < nc; k++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3694 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3695 if (work[k] != 0.) |
|
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 octave_idx_type minr = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3698 octave_idx_type mini = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3699 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3700 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
|
3701 i < cidx (k+1); i++) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3702 if (perm[ridx (i)] < minr) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3703 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3704 minr = perm[ridx (i)]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3705 mini = i; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3706 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3707 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3708 double tmp = work[k] / data (mini); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3709 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3710 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
|
3711 i < cidx (k+1); i++) |
|
10314
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 (i == mini) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3714 continue; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3715 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3716 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
|
3717 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3718 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3719 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3720 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3721 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3722 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3723 for (octave_idx_type i = j; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3724 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3725 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3726 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3727 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3728 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3729 ainvnorm = atmp; |
|
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 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3732 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3733 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3734 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3735 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3736 OCTAVE_LOCAL_BUFFER (Complex, cwork, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3737 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3738 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
|
3739 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3740 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3741 cwork[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3742 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
|
3743 cwork[b.ridx (i)] = b.data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3744 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3745 for (octave_idx_type k = 0; k < nc; k++) |
|
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 if (cwork[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3748 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3749 if (ridx (cidx (k)) != k || |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3750 data (cidx (k)) == 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3751 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3752 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3753 goto triangular_error; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3754 } |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3755 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3756 Complex tmp = cwork[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3757 cwork[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3758 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
|
3759 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3760 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
|
3761 cwork[iidx] = cwork[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3762 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3763 } |
|
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 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3766 // 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
|
3767 // retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3768 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3769 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3770 if (cwork[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3771 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3772 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3773 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3774 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3775 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3776 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
|
3777 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3778 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3779 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3780 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3781 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3782 if (cwork[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3783 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3784 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3785 retval.xdata (ii++) = cwork[i]; |
|
10314
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 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3788 } |
|
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 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3791 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3792 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3793 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3794 // Calculation of 1-norm of inv(*this) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3795 OCTAVE_LOCAL_BUFFER (double, work, nm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3796 for (octave_idx_type i = 0; i < nm; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3797 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3798 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3799 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3800 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3801 work[j] = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3802 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3803 for (octave_idx_type k = j; k < nc; k++) |
|
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 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3806 if (work[k] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3807 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3808 double tmp = work[k] / data (cidx (k)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3809 work[k] = tmp; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3810 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
|
3811 i < cidx (k+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3812 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3813 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
|
3814 work[iidx] = work[iidx] - tmp * data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3815 } |
|
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 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3818 double atmp = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3819 for (octave_idx_type i = j; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3820 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3821 atmp += fabs (work[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3822 work[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3823 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3824 if (atmp > ainvnorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3825 ainvnorm = atmp; |
|
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 rcond = 1. / ainvnorm / anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3828 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3829 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3830 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3831 triangular_error: |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3832 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3833 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3834 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3835 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3836 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3837 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3838 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3839 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3840 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3841 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3842 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3843 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3844 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3845 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3846 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3847 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3848 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3849 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3850 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3851 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3852 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3853 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3854 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3855 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3856 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3857 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3858 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3859 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3860 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3861 } |
| 5164 | 3862 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3863 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 3864 } |
| 3865 | |
| 3866 return retval; | |
| 3867 } | |
| 3868 | |
| 3869 Matrix | |
| 5785 | 3870 SparseMatrix::trisolve (MatrixType &mattype, const Matrix& b, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3871 octave_idx_type& err, double& rcond, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3872 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3873 bool calc_cond) const |
| 5164 | 3874 { |
| 3875 Matrix retval; | |
| 3876 | |
| 5275 | 3877 octave_idx_type nr = rows (); |
| 3878 octave_idx_type nc = cols (); | |
| 5164 | 3879 err = 0; |
| 3880 | |
| 6924 | 3881 if (nr != nc || nr != b.rows ()) |
| 5164 | 3882 (*current_liboctave_error_handler) |
| 3883 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 3884 else if (nr == 0 || b.cols () == 0) |
| 3885 retval = Matrix (nc, b.cols (), 0.0); | |
| 5681 | 3886 else if (calc_cond) |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3887 (*current_liboctave_error_handler) |
| 5681 | 3888 ("calculation of condition number not implemented"); |
| 5164 | 3889 else |
| 3890 { | |
| 3891 // Print spparms("spumoni") info if requested | |
| 3892 volatile int typ = mattype.type (); | |
| 3893 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3894 |
| 5785 | 3895 if (typ == MatrixType::Tridiagonal_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3896 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3897 OCTAVE_LOCAL_BUFFER (double, D, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3898 OCTAVE_LOCAL_BUFFER (double, DL, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3899 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3900 if (mattype.is_dense ()) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3901 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3902 octave_idx_type ii = 0; |
|
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 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
|
3905 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3906 D[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3907 DL[j] = data (ii); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3908 ii += 2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3909 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3910 D[nc-1] = data (ii); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3911 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3912 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3913 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3914 D[0] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3915 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
|
3916 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3917 D[i+1] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3918 DL[i] = 0.; |
|
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 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3921 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
|
3922 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
|
3923 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3924 if (ridx (i) == j) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3925 D[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3926 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
|
3927 DL[j] = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3928 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3929 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3930 |
|
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
|
3931 octave_idx_type b_nc = b.cols (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3932 retval = b; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3933 double *result = retval.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3934 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3935 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
|
3936 b.rows (), err)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3937 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3938 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3939 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3940 err = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3941 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3942 typ = MatrixType::Tridiagonal; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3943 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3944 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3945 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3946 } |
| 5164 | 3947 |
| 5785 | 3948 if (typ == MatrixType::Tridiagonal) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3949 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3950 OCTAVE_LOCAL_BUFFER (double, DU, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3951 OCTAVE_LOCAL_BUFFER (double, D, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3952 OCTAVE_LOCAL_BUFFER (double, DL, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3953 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3954 if (mattype.is_dense ()) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3955 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3956 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3957 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3958 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
|
3959 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3960 D[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3961 DL[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3962 DU[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3963 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3964 D[nc-1] = data (ii); |
|
10314
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 else |
|
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 D[0] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3969 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
|
3970 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3971 D[i+1] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3972 DL[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3973 DU[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3974 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3975 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3976 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
|
3977 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
|
3978 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3979 if (ridx (i) == j) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3980 D[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3981 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
|
3982 DL[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
3983 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
|
3984 DU[j-1] = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3985 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3986 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3987 |
|
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
|
3988 octave_idx_type b_nc = b.cols (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3989 retval = b; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3990 double *result = retval.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3991 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
3992 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
|
3993 b.rows (), err)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3994 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3995 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3996 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3997 rcond = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3998 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
3999 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4000 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4001 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4002 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4003 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4004 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4005 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4006 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4007 ("matrix singular to machine precision"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4008 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4009 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4010 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4011 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4012 } |
| 5785 | 4013 else if (typ != MatrixType::Tridiagonal_Hermitian) |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4014 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 4015 } |
| 4016 | |
| 4017 return retval; | |
| 4018 } | |
| 4019 | |
| 4020 SparseMatrix | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4021 SparseMatrix::trisolve (MatrixType &mattype, const SparseMatrix& b, |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4022 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4023 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4024 bool calc_cond) const |
| 5164 | 4025 { |
| 4026 SparseMatrix retval; | |
| 4027 | |
| 5275 | 4028 octave_idx_type nr = rows (); |
| 4029 octave_idx_type nc = cols (); | |
| 5164 | 4030 err = 0; |
| 4031 | |
| 6924 | 4032 if (nr != nc || nr != b.rows ()) |
| 5164 | 4033 (*current_liboctave_error_handler) |
| 4034 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 4035 else if (nr == 0 || b.cols () == 0) |
| 4036 retval = SparseMatrix (nc, b.cols ()); | |
| 5681 | 4037 else if (calc_cond) |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4038 (*current_liboctave_error_handler) |
| 5681 | 4039 ("calculation of condition number not implemented"); |
| 5164 | 4040 else |
| 4041 { | |
| 4042 // Print spparms("spumoni") info if requested | |
| 4043 int typ = mattype.type (); | |
| 4044 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4045 |
| 5164 | 4046 // Note can't treat symmetric case as there is no dpttrf function |
| 5785 | 4047 if (typ == MatrixType::Tridiagonal || |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4048 typ == MatrixType::Tridiagonal_Hermitian) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4049 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4050 OCTAVE_LOCAL_BUFFER (double, DU2, nr - 2); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4051 OCTAVE_LOCAL_BUFFER (double, DU, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4052 OCTAVE_LOCAL_BUFFER (double, D, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4053 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
|
4054 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
|
4055 octave_idx_type *pipvt = ipvt.fortran_vec (); |
|
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 if (mattype.is_dense ()) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4058 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4059 octave_idx_type ii = 0; |
|
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 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
|
4062 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4063 D[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4064 DL[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4065 DU[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4066 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4067 D[nc-1] = data (ii); |
|
10314
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 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4071 D[0] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4072 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
|
4073 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4074 D[i+1] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4075 DL[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4076 DU[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4077 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4078 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4079 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
|
4080 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
|
4081 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4082 if (ridx (i) == j) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4083 D[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4084 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
|
4085 DL[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4086 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
|
4087 DU[j-1] = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4088 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4089 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4090 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4091 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
|
4092 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4093 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4094 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4095 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4096 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4097 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4098 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4099 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4100 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4101 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4102 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4103 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4104 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4105 ("matrix singular to machine precision"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4106 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4107 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4108 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4109 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4110 rcond = 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4111 char job = 'N'; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4112 volatile octave_idx_type x_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4113 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4114 retval = SparseMatrix (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
|
4115 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4116 volatile octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4117 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4118 OCTAVE_LOCAL_BUFFER (double, work, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4119 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4120 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
|
4121 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4122 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4123 work[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4124 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
|
4125 work[b.ridx (i)] = b.data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4126 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4127 F77_XFCN (dgttrs, DGTTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4128 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4129 nr, 1, DL, D, DU, DU2, pipvt, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4130 work, b.rows (), err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4131 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4132 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4133 // Count non-zeros in work vector and adjust |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4134 // space in retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4135 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4136 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4137 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4138 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4139 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4140 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4141 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4142 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4143 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
|
4144 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4145 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4146 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4147 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4148 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4149 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4150 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4151 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4152 retval.xdata (ii++) = work[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4153 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4154 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4155 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4156 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4157 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4158 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4159 } |
| 5785 | 4160 else if (typ != MatrixType::Tridiagonal_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4161 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 4162 } |
| 4163 | |
| 4164 return retval; | |
| 4165 } | |
| 4166 | |
| 4167 ComplexMatrix | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4168 SparseMatrix::trisolve (MatrixType &mattype, const ComplexMatrix& b, |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
4169 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
|
4170 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4171 bool calc_cond) const |
| 5164 | 4172 { |
| 4173 ComplexMatrix retval; | |
| 4174 | |
| 5275 | 4175 octave_idx_type nr = rows (); |
| 4176 octave_idx_type nc = cols (); | |
| 5164 | 4177 err = 0; |
| 4178 | |
| 6924 | 4179 if (nr != nc || nr != b.rows ()) |
| 5164 | 4180 (*current_liboctave_error_handler) |
| 4181 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 4182 else if (nr == 0 || b.cols () == 0) |
| 4183 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0)); | |
| 5681 | 4184 else if (calc_cond) |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4185 (*current_liboctave_error_handler) |
| 5681 | 4186 ("calculation of condition number not implemented"); |
| 5164 | 4187 else |
| 4188 { | |
| 4189 // Print spparms("spumoni") info if requested | |
| 4190 volatile int typ = mattype.type (); | |
| 4191 mattype.info (); | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4192 |
| 5785 | 4193 if (typ == MatrixType::Tridiagonal_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4194 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4195 OCTAVE_LOCAL_BUFFER (double, D, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4196 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4197 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4198 if (mattype.is_dense ()) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4199 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4200 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4201 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4202 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
|
4203 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4204 D[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4205 DL[j] = data (ii); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4206 ii += 2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4207 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4208 D[nc-1] = data (ii); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4209 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4210 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4211 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4212 D[0] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4213 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
|
4214 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4215 D[i+1] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4216 DL[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4217 } |
|
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 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
|
4220 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
|
4221 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4222 if (ridx (i) == j) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4223 D[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4224 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
|
4225 DL[j] = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4226 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4227 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4228 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4229 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>
parents:
14844
diff
changeset
|
4230 octave_idx_type b_nc = b.cols (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4231 rcond = 1.; |
|
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 retval = b; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4234 Complex *result = retval.fortran_vec (); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4235 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4236 F77_XFCN (zptsv, ZPTSV, (nr, b_nc, D, DL, result, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4237 b_nr, err)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4238 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4239 if (err != 0) |
|
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 err = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4242 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4243 typ = MatrixType::Tridiagonal; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4244 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4245 } |
| 5164 | 4246 |
| 5785 | 4247 if (typ == MatrixType::Tridiagonal) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4248 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4249 OCTAVE_LOCAL_BUFFER (Complex, DU, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4250 OCTAVE_LOCAL_BUFFER (Complex, D, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4251 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4252 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4253 if (mattype.is_dense ()) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4254 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4255 octave_idx_type ii = 0; |
|
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 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
|
4258 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4259 D[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4260 DL[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4261 DU[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4262 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4263 D[nc-1] = data (ii); |
|
10314
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 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4266 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4267 D[0] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4268 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
|
4269 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4270 D[i+1] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4271 DL[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4272 DU[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4273 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4274 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4275 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
|
4276 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
|
4277 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4278 if (ridx (i) == j) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4279 D[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4280 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
|
4281 DL[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4282 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
|
4283 DU[j-1] = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4284 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4285 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4286 |
|
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
|
4287 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
|
4288 octave_idx_type b_nc = b.cols (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4289 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4290 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4291 retval = b; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4292 Complex *result = retval.fortran_vec (); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4293 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4294 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
|
4295 b_nr, err)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4296 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4297 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4298 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4299 rcond = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4300 err = -2; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4301 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4302 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4303 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4304 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
4305 mattype.mark_as_rectangular (); |
|
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|
4306 } |
|
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diff
changeset
|
4307 else |
|
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4308 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4309 ("matrix singular to machine precision"); |
|
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diff
changeset
|
4310 } |
|
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diff
changeset
|
4311 } |
| 5785 | 4312 else if (typ != MatrixType::Tridiagonal_Hermitian) |
|
10314
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diff
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|
4313 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 4314 } |
| 4315 | |
| 4316 return retval; | |
| 4317 } | |
| 4318 | |
| 4319 SparseComplexMatrix | |
| 5785 | 4320 SparseMatrix::trisolve (MatrixType &mattype, const SparseComplexMatrix& b, |
|
11586
12df7854fa7c
strip trailing whitespace from source files
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changeset
|
4321 octave_idx_type& err, double& rcond, |
|
10314
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untabify liboctave C++ sources
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changeset
|
4322 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
|
4323 bool calc_cond) const |
| 5164 | 4324 { |
| 4325 SparseComplexMatrix retval; | |
| 4326 | |
| 5275 | 4327 octave_idx_type nr = rows (); |
| 4328 octave_idx_type nc = cols (); | |
| 5164 | 4329 err = 0; |
| 4330 | |
| 6924 | 4331 if (nr != nc || nr != b.rows ()) |
| 5164 | 4332 (*current_liboctave_error_handler) |
| 4333 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 4334 else if (nr == 0 || b.cols () == 0) |
| 4335 retval = SparseComplexMatrix (nc, b.cols ()); | |
| 5681 | 4336 else if (calc_cond) |
|
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4337 (*current_liboctave_error_handler) |
| 5681 | 4338 ("calculation of condition number not implemented"); |
| 5164 | 4339 else |
| 4340 { | |
| 4341 // Print spparms("spumoni") info if requested | |
| 4342 int typ = mattype.type (); | |
| 4343 mattype.info (); | |
|
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
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|
4344 |
| 5164 | 4345 // Note can't treat symmetric case as there is no dpttrf function |
| 5785 | 4346 if (typ == MatrixType::Tridiagonal || |
|
10314
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diff
changeset
|
4347 typ == MatrixType::Tridiagonal_Hermitian) |
|
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diff
changeset
|
4348 { |
|
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diff
changeset
|
4349 OCTAVE_LOCAL_BUFFER (double, DU2, nr - 2); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
4350 OCTAVE_LOCAL_BUFFER (double, DU, nr - 1); |
|
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untabify liboctave C++ sources
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|
4351 OCTAVE_LOCAL_BUFFER (double, D, nr); |
|
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untabify liboctave C++ sources
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|
4352 OCTAVE_LOCAL_BUFFER (double, DL, nr - 1); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
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11523
diff
changeset
|
4353 Array<octave_idx_type> ipvt (dim_vector (nr, 1)); |
|
10314
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untabify liboctave C++ sources
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diff
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|
4354 octave_idx_type *pipvt = ipvt.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
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|
4355 |
|
07ebe522dac2
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diff
changeset
|
4356 if (mattype.is_dense ()) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4357 { |
|
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diff
changeset
|
4358 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4359 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4360 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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diff
changeset
|
4361 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4362 D[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4363 DL[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4364 DU[j] = data (ii++); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4365 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4366 D[nc-1] = data (ii); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4367 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4368 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4369 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4370 D[0] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4371 for (octave_idx_type i = 0; i < nr - 1; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4372 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4373 D[i+1] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4374 DL[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4375 DU[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4376 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4377 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4378 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
|
4379 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4380 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4381 if (ridx (i) == j) |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4382 D[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4383 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
|
4384 DL[j] = data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4385 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
|
4386 DU[j-1] = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4387 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4388 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4389 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4390 F77_XFCN (dgttrf, DGTTRF, (nr, DL, D, DU, DU2, pipvt, err)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4391 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
4392 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4393 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4394 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4395 err = -2; |
|
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 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4398 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4399 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4400 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4401 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4402 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4403 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4404 ("matrix singular to machine precision"); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4405 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
4406 else |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
4407 { |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4408 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4409 char job = 'N'; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4410 octave_idx_type b_nr = b.rows (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4411 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4412 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4413 OCTAVE_LOCAL_BUFFER (double, Bz, b_nr); |
|
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diff
changeset
|
4414 |
|
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untabify liboctave C++ sources
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diff
changeset
|
4415 // Take a first guess that the number of non-zero terms |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4416 // will be as many as in b |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4417 volatile octave_idx_type x_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
4418 volatile octave_idx_type ii = 0; |
|
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untabify liboctave C++ sources
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changeset
|
4419 retval = SparseComplexMatrix (b_nr, b_nc, x_nz); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
4420 |
|
15018
3d8ace26c5b4
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Rik <rik@octave.org>
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14846
diff
changeset
|
4421 retval.xcidx (0) = 0; |
|
10314
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untabify liboctave C++ sources
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changeset
|
4422 for (volatile octave_idx_type j = 0; j < b_nc; j++) |
|
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changeset
|
4423 { |
|
07ebe522dac2
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10158
diff
changeset
|
4424 |
|
07ebe522dac2
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changeset
|
4425 for (octave_idx_type i = 0; i < b_nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4426 { |
|
18083
938f01339043
maint: Use Octave coding convention for indexing vs. function calls in liboctave/array.
Rik <rik@octave.org>
parents:
18080
diff
changeset
|
4427 Complex c = b(i,j); |
|
10314
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untabify liboctave C++ sources
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changeset
|
4428 Bx[i] = std::real (c); |
|
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untabify liboctave C++ sources
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changeset
|
4429 Bz[i] = std::imag (c); |
|
07ebe522dac2
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diff
changeset
|
4430 } |
|
07ebe522dac2
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diff
changeset
|
4431 |
|
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diff
changeset
|
4432 F77_XFCN (dgttrs, DGTTRS, |
|
10314
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untabify liboctave C++ sources
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changeset
|
4433 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
11586
12df7854fa7c
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diff
changeset
|
4434 nr, 1, DL, D, DU, DU2, pipvt, |
|
10314
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untabify liboctave C++ sources
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changeset
|
4435 Bx, b_nr, err |
|
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untabify liboctave C++ sources
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changeset
|
4436 F77_CHAR_ARG_LEN (1))); |
|
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diff
changeset
|
4437 |
|
07ebe522dac2
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changeset
|
4438 if (err != 0) |
|
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diff
changeset
|
4439 { |
|
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diff
changeset
|
4440 (*current_liboctave_error_handler) |
|
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untabify liboctave C++ sources
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changeset
|
4441 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
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diff
changeset
|
4442 |
|
07ebe522dac2
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changeset
|
4443 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4444 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4445 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4446 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
4447 F77_XFCN (dgttrs, DGTTRS, |
|
10314
07ebe522dac2
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|
4448 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
4449 nr, 1, DL, D, DU, DU2, pipvt, |
|
10314
07ebe522dac2
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diff
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|
4450 Bz, b_nr, err |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4451 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4452 |
|
07ebe522dac2
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diff
changeset
|
4453 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4454 { |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
4455 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4456 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4457 |
|
07ebe522dac2
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diff
changeset
|
4458 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4459 break; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4460 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4461 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
4462 // Count non-zeros in work vector and adjust |
|
10314
07ebe522dac2
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diff
changeset
|
4463 // space in retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4464 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4465 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4466 if (Bx[i] != 0. || Bz[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4467 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4468 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4469 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4470 { |
|
07ebe522dac2
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diff
changeset
|
4471 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4472 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4473 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4474 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4475 } |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4476 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4477 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
|
4478 if (Bx[i] != 0. || Bz[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4479 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4480 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4481 retval.xdata (ii++) = |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
4482 Complex (Bx[i], Bz[i]); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4483 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4484 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4485 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4486 } |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4487 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4488 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4489 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4490 } |
| 5785 | 4491 else if (typ != MatrixType::Tridiagonal_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4492 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 4493 } |
| 4494 | |
| 4495 return retval; | |
| 4496 } | |
| 4497 | |
| 4498 Matrix | |
| 5785 | 4499 SparseMatrix::bsolve (MatrixType &mattype, const Matrix& b, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4500 octave_idx_type& err, double& rcond, |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
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diff
changeset
|
4501 solve_singularity_handler sing_handler, |
|
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untabify liboctave C++ sources
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diff
changeset
|
4502 bool calc_cond) const |
| 5164 | 4503 { |
| 4504 Matrix retval; | |
| 4505 | |
| 5275 | 4506 octave_idx_type nr = rows (); |
| 4507 octave_idx_type nc = cols (); | |
| 5164 | 4508 err = 0; |
| 4509 | |
| 6924 | 4510 if (nr != nc || nr != b.rows ()) |
| 5164 | 4511 (*current_liboctave_error_handler) |
| 4512 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 4513 else if (nr == 0 || b.cols () == 0) |
| 4514 retval = Matrix (nc, b.cols (), 0.0); | |
| 5164 | 4515 else |
| 4516 { | |
| 4517 // Print spparms("spumoni") info if requested | |
| 4518 volatile int typ = mattype.type (); | |
| 4519 mattype.info (); | |
| 4520 | |
| 5785 | 4521 if (typ == MatrixType::Banded_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4522 { |
|
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untabify liboctave C++ sources
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diff
changeset
|
4523 octave_idx_type n_lower = mattype.nlower (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4524 octave_idx_type ldm = n_lower + 1; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4525 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4526 double *tmp_data = m_band.fortran_vec (); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
4527 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4528 if (! mattype.is_dense ()) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4529 { |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4530 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4531 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4532 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
4533 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4534 tmp_data[ii++] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4535 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4536 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4537 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
|
4538 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4539 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4540 octave_idx_type ri = ridx (i); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4541 if (ri >= j) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4542 m_band(ri - j, j) = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4543 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4544 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4545 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4546 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
4547 if (calc_cond) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4548 anorm = m_band.abs ().sum ().row (0).max (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
4549 |
|
07ebe522dac2
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10158
diff
changeset
|
4550 char job = 'L'; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4551 F77_XFCN (dpbtrf, DPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4552 nr, n_lower, tmp_data, ldm, err |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4553 F77_CHAR_ARG_LEN (1))); |
|
11586
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diff
changeset
|
4554 |
|
12df7854fa7c
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diff
changeset
|
4555 if (err != 0) |
|
10314
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diff
changeset
|
4556 { |
|
07ebe522dac2
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diff
changeset
|
4557 // Matrix is not positive definite!! Fall through to |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4558 // unsymmetric banded solver. |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4559 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4560 typ = MatrixType::Banded; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4561 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
4562 err = 0; |
|
11586
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diff
changeset
|
4563 } |
|
12df7854fa7c
strip trailing whitespace from source files
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diff
changeset
|
4564 else |
|
10314
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diff
changeset
|
4565 { |
|
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diff
changeset
|
4566 if (calc_cond) |
|
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diff
changeset
|
4567 { |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4568 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
4569 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
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11523
diff
changeset
|
4570 Array<octave_idx_type> iz (dim_vector (nr, 1)); |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
4571 octave_idx_type *piz = iz.fortran_vec (); |
|
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changeset
|
4572 |
|
11586
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strip trailing whitespace from source files
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diff
changeset
|
4573 F77_XFCN (dpbcon, DPBCON, |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
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17744
diff
changeset
|
4574 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4575 nr, n_lower, tmp_data, ldm, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4576 anorm, rcond, pz, piz, err |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
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17744
diff
changeset
|
4577 F77_CHAR_ARG_LEN (1))); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4578 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4579 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4580 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4581 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4582 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4583 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4584 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4585 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4586 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4587 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4588 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4589 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4590 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4591 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4592 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4593 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4594 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4595 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4596 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4597 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4598 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4599 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4600 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4601 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4602 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4603 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4604 retval = b; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4605 double *result = retval.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4606 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4607 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4608 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4609 F77_XFCN (dpbtrs, DPBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4610 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4611 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
|
4612 ldm, result, b.rows (), err |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4613 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4614 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4615 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4616 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4617 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4618 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4619 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4620 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4621 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4622 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4623 } |
| 5164 | 4624 |
| 5785 | 4625 if (typ == MatrixType::Banded) |
|
10314
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 // 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
|
4628 octave_idx_type n_upper = mattype.nupper (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4629 octave_idx_type n_lower = mattype.nlower (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4630 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
|
4631 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4632 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4633 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
|
4634 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4635 if (! mattype.is_dense ()) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4636 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4637 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4638 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4639 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4640 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4641 tmp_data[ii++] = 0.; |
|
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 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4644 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
|
4645 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
|
4646 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
|
4647 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4648 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4649 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4650 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4651 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4652 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4653 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4654 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4655 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
|
4656 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4657 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4658 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4659 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4660 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4661 |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4662 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
|
4663 octave_idx_type *pipvt = ipvt.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4664 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4665 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
|
4666 ldm, pipvt, err)); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4667 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4668 // 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
|
4669 // change output. |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4670 if (err != 0) |
|
10314
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 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4673 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4674 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4675 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4676 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4677 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4678 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4679 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4680 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4681 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4682 ("matrix singular to machine precision"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4683 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4684 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4685 else |
|
10314
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 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4688 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4689 char job = '1'; |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4690 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4691 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4692 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
|
4693 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4694 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4695 F77_XFCN (dgbcon, DGBCON, |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4696 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4697 nc, n_lower, n_upper, tmp_data, ldm, pipvt, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4698 anorm, rcond, pz, piz, err |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4699 F77_CHAR_ARG_LEN (1))); |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4700 |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4701 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4702 err = -2; |
|
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 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4705 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4706 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4707 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4708 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4709 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4710 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4711 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4712 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4713 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4714 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4715 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4716 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4717 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4718 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4719 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4720 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4721 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4722 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4723 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4724 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4725 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4726 retval = b; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4727 double *result = retval.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4728 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4729 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4730 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4731 char job = 'N'; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4732 F77_XFCN (dgbtrs, DGBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4733 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4734 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
|
4735 ldm, pipvt, result, b.rows (), err |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4736 F77_CHAR_ARG_LEN (1))); |
|
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 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4739 } |
| 5785 | 4740 else if (typ != MatrixType::Banded_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4741 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 4742 } |
| 4743 | |
| 4744 return retval; | |
| 4745 } | |
| 4746 | |
| 4747 SparseMatrix | |
| 5785 | 4748 SparseMatrix::bsolve (MatrixType &mattype, const SparseMatrix& b, |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4749 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4750 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4751 bool calc_cond) const |
| 5164 | 4752 { |
| 4753 SparseMatrix retval; | |
| 4754 | |
| 5275 | 4755 octave_idx_type nr = rows (); |
| 4756 octave_idx_type nc = cols (); | |
| 5164 | 4757 err = 0; |
| 4758 | |
| 6924 | 4759 if (nr != nc || nr != b.rows ()) |
| 5164 | 4760 (*current_liboctave_error_handler) |
| 4761 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 4762 else if (nr == 0 || b.cols () == 0) |
| 4763 retval = SparseMatrix (nc, b.cols ()); | |
| 5164 | 4764 else |
| 4765 { | |
| 4766 // Print spparms("spumoni") info if requested | |
| 4767 volatile int typ = mattype.type (); | |
| 4768 mattype.info (); | |
| 4769 | |
| 5785 | 4770 if (typ == MatrixType::Banded_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4771 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4772 octave_idx_type n_lower = mattype.nlower (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4773 octave_idx_type ldm = n_lower + 1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4774 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4775 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4776 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
|
4777 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4778 if (! mattype.is_dense ()) |
|
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 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4781 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4782 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4783 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4784 tmp_data[ii++] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4785 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4786 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4787 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
|
4788 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
|
4789 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4790 octave_idx_type ri = ridx (i); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4791 if (ri >= j) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4792 m_band(ri - j, j) = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4793 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4794 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4795 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4796 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4797 if (calc_cond) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4798 anorm = m_band.abs ().sum ().row (0).max (); |
|
10314
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 char job = 'L'; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4801 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
|
4802 nr, n_lower, tmp_data, ldm, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4803 F77_CHAR_ARG_LEN (1))); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4804 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4805 if (err != 0) |
|
10314
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 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4808 typ = MatrixType::Banded; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4809 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4810 err = 0; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4811 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4812 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4813 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4814 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4815 { |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4816 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4817 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4818 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
|
4819 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
4820 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4821 F77_XFCN (dpbcon, DPBCON, |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4822 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4823 nr, n_lower, tmp_data, ldm, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4824 anorm, rcond, pz, piz, err |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4825 F77_CHAR_ARG_LEN (1))); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4826 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4827 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4828 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4829 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4830 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4831 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4832 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4833 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4834 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4835 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4836 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4837 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4838 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4839 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4840 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4841 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4842 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4843 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4844 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4845 } |
|
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 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4848 rcond = 1.; |
|
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 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4851 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4852 octave_idx_type b_nr = b.rows (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4853 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4854 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4855 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4856 // 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
|
4857 // will be as many as in b |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4858 volatile octave_idx_type x_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4859 volatile octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4860 retval = SparseMatrix (b_nr, b_nc, x_nz); |
|
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.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4863 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
|
4864 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4865 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
|
4866 Bx[i] = b.elem (i, j); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4867 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4868 F77_XFCN (dpbtrs, DPBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4869 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4870 nr, n_lower, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4871 ldm, Bx, b_nr, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4872 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4873 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4874 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4875 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4876 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4877 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4878 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4879 break; |
|
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 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4882 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
|
4883 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4884 double tmp = Bx[i]; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4885 if (tmp != 0.0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4886 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4887 if (ii == x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4888 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4889 // Resize the sparse matrix |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4890 octave_idx_type sz = x_nz * |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4891 (b_nc - j) / b_nc; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4892 sz = (sz > 10 ? sz : 10) + x_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4893 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4894 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4895 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4896 retval.xdata (ii) = tmp; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4897 retval.xridx (ii++) = i; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4898 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4899 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4900 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4901 } |
|
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 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4904 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4905 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4906 } |
| 5164 | 4907 |
| 5785 | 4908 if (typ == MatrixType::Banded) |
|
10314
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 // 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
|
4911 octave_idx_type n_upper = mattype.nupper (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4912 octave_idx_type n_lower = mattype.nlower (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4913 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
|
4914 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4915 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4916 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
|
4917 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4918 if (! mattype.is_dense ()) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4919 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4920 octave_idx_type ii = 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 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4923 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4924 tmp_data[ii++] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4925 } |
|
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 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
|
4928 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
|
4929 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
|
4930 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4931 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4932 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4933 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4934 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4935 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4936 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4937 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
4938 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
|
4939 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4940 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4941 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4942 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4943 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4944 |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4945 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
|
4946 octave_idx_type *pipvt = ipvt.fortran_vec (); |
|
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 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
|
4949 ldm, pipvt, err)); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4950 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4951 if (err != 0) |
|
10314
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 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4954 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4955 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4956 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4957 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4958 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4959 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4960 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4961 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4962 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4963 ("matrix singular to machine precision"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4964 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4965 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4966 else |
|
10314
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 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4969 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4970 char job = '1'; |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4971 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4972 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
4973 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
|
4974 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4975 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
4976 F77_XFCN (dgbcon, DGBCON, |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4977 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4978 nc, n_lower, n_upper, tmp_data, ldm, pipvt, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4979 anorm, rcond, pz, piz, err |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4980 F77_CHAR_ARG_LEN (1))); |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4981 |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
4982 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4983 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4984 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4985 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4986 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4987 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4988 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4989 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4990 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4991 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4992 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4993 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4994 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4995 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4996 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4997 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4998 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
4999 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5000 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5001 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5002 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5003 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5004 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5005 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5006 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5007 char job = 'N'; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5008 volatile octave_idx_type x_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5009 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5010 retval = SparseMatrix (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
|
5011 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5012 volatile octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5013 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5014 OCTAVE_LOCAL_BUFFER (double, work, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5015 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5016 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
|
5017 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5018 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5019 work[i] = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5020 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
|
5021 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
|
5022 work[b.ridx (i)] = b.data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5023 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5024 F77_XFCN (dgbtrs, DGBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5025 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5026 nr, n_lower, n_upper, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5027 ldm, pipvt, work, b.rows (), err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5028 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5029 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5030 // Count non-zeros in work vector and adjust |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5031 // space in retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5032 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5033 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5034 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5035 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5036 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5037 if (ii + new_nnz > x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5038 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5039 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5040 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
|
5041 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5042 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5043 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5044 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5045 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5046 if (work[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5047 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5048 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5049 retval.xdata (ii++) = work[i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5050 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5051 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5052 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5053 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5054 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5055 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5056 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5057 } |
| 5785 | 5058 else if (typ != MatrixType::Banded_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5059 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 5060 } |
| 5061 | |
| 5062 return retval; | |
| 5063 } | |
| 5064 | |
| 5065 ComplexMatrix | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5066 SparseMatrix::bsolve (MatrixType &mattype, const ComplexMatrix& b, |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5067 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5068 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5069 bool calc_cond) const |
| 5164 | 5070 { |
| 5071 ComplexMatrix retval; | |
| 5072 | |
| 5275 | 5073 octave_idx_type nr = rows (); |
| 5074 octave_idx_type nc = cols (); | |
| 5164 | 5075 err = 0; |
| 5076 | |
| 6924 | 5077 if (nr != nc || nr != b.rows ()) |
| 5164 | 5078 (*current_liboctave_error_handler) |
| 5079 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 5080 else if (nr == 0 || b.cols () == 0) |
| 5081 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0)); | |
| 5164 | 5082 else |
| 5083 { | |
| 5084 // Print spparms("spumoni") info if requested | |
| 5085 volatile int typ = mattype.type (); | |
| 5086 mattype.info (); | |
| 5087 | |
| 5785 | 5088 if (typ == MatrixType::Banded_Hermitian) |
|
10314
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changeset
|
5089 { |
|
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changeset
|
5090 octave_idx_type n_lower = mattype.nlower (); |
|
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untabify liboctave C++ sources
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|
5091 octave_idx_type ldm = n_lower + 1; |
|
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untabify liboctave C++ sources
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diff
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|
5092 |
|
07ebe522dac2
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changeset
|
5093 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
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|
5094 double *tmp_data = m_band.fortran_vec (); |
|
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strip trailing whitespace from source files
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11574
diff
changeset
|
5095 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5096 if (! mattype.is_dense ()) |
|
10314
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untabify liboctave C++ sources
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|
5097 { |
|
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untabify liboctave C++ sources
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diff
changeset
|
5098 octave_idx_type ii = 0; |
|
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untabify liboctave C++ sources
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10158
diff
changeset
|
5099 |
|
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untabify liboctave C++ sources
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changeset
|
5100 for (octave_idx_type j = 0; j < ldm; j++) |
|
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untabify liboctave C++ sources
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changeset
|
5101 for (octave_idx_type i = 0; i < nc; i++) |
|
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untabify liboctave C++ sources
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diff
changeset
|
5102 tmp_data[ii++] = 0.; |
|
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untabify liboctave C++ sources
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diff
changeset
|
5103 } |
|
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diff
changeset
|
5104 |
|
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5105 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
|
5106 for (octave_idx_type i = cidx (j); i < cidx (j+1); i++) |
|
10314
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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changeset
|
5107 { |
|
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diff
changeset
|
5108 octave_idx_type ri = ridx (i); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5109 if (ri >= j) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5110 m_band(ri - j, j) = data (i); |
|
10314
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diff
changeset
|
5111 } |
|
07ebe522dac2
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10158
diff
changeset
|
5112 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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changeset
|
5113 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5114 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5115 if (calc_cond) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5116 anorm = m_band.abs ().sum ().row (0).max (); |
|
10314
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5117 |
|
07ebe522dac2
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diff
changeset
|
5118 char job = 'L'; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5119 F77_XFCN (dpbtrf, DPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5120 nr, n_lower, tmp_data, ldm, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5121 F77_CHAR_ARG_LEN (1))); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5122 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5123 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5124 { |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5125 // Matrix is not positive definite!! Fall through to |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
5126 // unsymmetric banded solver. |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5127 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5128 typ = MatrixType::Banded; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5129 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5130 err = 0; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
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diff
changeset
|
5131 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
5132 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
5133 { |
|
07ebe522dac2
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diff
changeset
|
5134 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5135 { |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5136 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5137 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5138 Array<octave_idx_type> iz (dim_vector (nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5139 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5140 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5141 F77_XFCN (dpbcon, DPBCON, |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5142 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5143 nr, n_lower, tmp_data, ldm, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5144 anorm, rcond, pz, piz, err |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5145 F77_CHAR_ARG_LEN (1))); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5146 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5147 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5148 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
5149 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5150 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5151 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5152 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5153 { |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
5154 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5155 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5156 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5157 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
5158 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5159 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
5160 } |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
5161 else |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5162 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
5163 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5164 rcond); |
|
07ebe522dac2
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10158
diff
changeset
|
5165 } |
|
07ebe522dac2
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10158
diff
changeset
|
5166 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5167 else |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
5168 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5169 |
|
07ebe522dac2
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10158
diff
changeset
|
5170 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
5171 { |
|
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untabify liboctave C++ sources
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diff
changeset
|
5172 octave_idx_type b_nr = b.rows (); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
5173 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
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changeset
|
5174 |
|
07ebe522dac2
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diff
changeset
|
5175 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
5176 OCTAVE_LOCAL_BUFFER (double, Bz, b_nr); |
|
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changeset
|
5177 |
|
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changeset
|
5178 retval.resize (b_nr, b_nc); |
|
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changeset
|
5179 |
|
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changeset
|
5180 for (volatile octave_idx_type j = 0; j < b_nc; j++) |
|
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untabify liboctave C++ sources
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diff
changeset
|
5181 { |
|
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diff
changeset
|
5182 for (octave_idx_type i = 0; i < b_nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5183 { |
|
18083
938f01339043
maint: Use Octave coding convention for indexing vs. function calls in liboctave/array.
Rik <rik@octave.org>
parents:
18080
diff
changeset
|
5184 Complex c = b(i,j); |
|
10314
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untabify liboctave C++ sources
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changeset
|
5185 Bx[i] = std::real (c); |
|
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untabify liboctave C++ sources
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changeset
|
5186 Bz[i] = std::imag (c); |
|
07ebe522dac2
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diff
changeset
|
5187 } |
|
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changeset
|
5188 |
|
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12df7854fa7c
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changeset
|
5189 F77_XFCN (dpbtrs, DPBTRS, |
|
10314
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changeset
|
5190 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
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changeset
|
5191 nr, n_lower, 1, tmp_data, |
|
07ebe522dac2
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changeset
|
5192 ldm, Bx, b_nr, err |
|
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untabify liboctave C++ sources
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changeset
|
5193 F77_CHAR_ARG_LEN (1))); |
|
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diff
changeset
|
5194 |
|
07ebe522dac2
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changeset
|
5195 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5196 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
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diff
changeset
|
5197 (*current_liboctave_error_handler) |
|
10314
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changeset
|
5198 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
5199 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5200 break; |
|
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 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5203 F77_XFCN (dpbtrs, DPBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5204 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5205 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
|
5206 ldm, Bz, b.rows (), err |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5207 F77_CHAR_ARG_LEN (1))); |
|
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 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5210 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5211 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5212 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5213 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5214 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5215 } |
|
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 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
|
5218 retval(i, j) = Complex (Bx[i], Bz[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5219 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5220 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5221 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5222 } |
| 5164 | 5223 |
| 5785 | 5224 if (typ == MatrixType::Banded) |
|
10314
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 // 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
|
5227 octave_idx_type n_upper = mattype.nupper (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5228 octave_idx_type n_lower = mattype.nlower (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5229 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
|
5230 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5231 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5232 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
|
5233 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5234 if (! mattype.is_dense ()) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5235 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5236 octave_idx_type ii = 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 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5239 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5240 tmp_data[ii++] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5241 } |
|
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 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
|
5244 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
|
5245 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
|
5246 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5247 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5248 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5249 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5250 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5251 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5252 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5253 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5254 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
|
5255 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5256 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5257 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5258 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5259 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5260 |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5261 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
|
5262 octave_idx_type *pipvt = ipvt.fortran_vec (); |
|
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 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
|
5265 ldm, pipvt, err)); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5266 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5267 if (err != 0) |
|
10314
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 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5270 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5271 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5272 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5273 { |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5274 sing_handler (rcond); |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5275 mattype.mark_as_rectangular (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5276 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5277 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5278 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5279 ("matrix singular to machine precision"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5280 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5281 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5282 else |
|
10314
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 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5285 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5286 char job = '1'; |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5287 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5288 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5289 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
|
5290 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5291 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5292 F77_XFCN (dpbcon, DPBCON, |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5293 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5294 nr, n_lower, tmp_data, ldm, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5295 anorm, rcond, pz, piz, err |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5296 F77_CHAR_ARG_LEN (1))); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5297 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5298 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5299 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5300 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5301 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5302 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5303 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5304 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5305 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5306 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5307 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5308 { |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5309 sing_handler (rcond); |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5310 mattype.mark_as_rectangular (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5311 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5312 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5313 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5314 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5315 rcond); |
|
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 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5318 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5319 rcond = 1.; |
|
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 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5322 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5323 char job = 'N'; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5324 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5325 retval.resize (nr,b_nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5326 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5327 OCTAVE_LOCAL_BUFFER (double, Bz, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5328 OCTAVE_LOCAL_BUFFER (double, Bx, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5329 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5330 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
|
5331 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5332 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5333 { |
|
18083
938f01339043
maint: Use Octave coding convention for indexing vs. function calls in liboctave/array.
Rik <rik@octave.org>
parents:
18080
diff
changeset
|
5334 Complex c = b(i, j); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5335 Bx[i] = std::real (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5336 Bz[i] = std::imag (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5337 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5338 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5339 F77_XFCN (dgbtrs, DGBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5340 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5341 nr, n_lower, n_upper, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5342 ldm, pipvt, Bx, b.rows (), err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5343 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5344 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5345 F77_XFCN (dgbtrs, DGBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5346 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5347 nr, n_lower, n_upper, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5348 ldm, pipvt, Bz, b.rows (), err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5349 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5350 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5351 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
|
5352 retval(i, j) = Complex (Bx[i], Bz[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5353 } |
|
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 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5356 } |
| 5785 | 5357 else if (typ != MatrixType::Banded_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5358 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 5359 } |
| 5360 | |
| 5361 return retval; | |
| 5362 } | |
| 5363 | |
| 5364 SparseComplexMatrix | |
| 5785 | 5365 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
|
5366 octave_idx_type& err, double& rcond, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5367 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5368 bool calc_cond) const |
| 5164 | 5369 { |
| 5370 SparseComplexMatrix retval; | |
| 5371 | |
| 5275 | 5372 octave_idx_type nr = rows (); |
| 5373 octave_idx_type nc = cols (); | |
| 5164 | 5374 err = 0; |
| 5375 | |
| 6924 | 5376 if (nr != nc || nr != b.rows ()) |
| 5164 | 5377 (*current_liboctave_error_handler) |
| 5378 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 5379 else if (nr == 0 || b.cols () == 0) |
| 5380 retval = SparseComplexMatrix (nc, b.cols ()); | |
| 5164 | 5381 else |
| 5382 { | |
| 5383 // Print spparms("spumoni") info if requested | |
| 5384 volatile int typ = mattype.type (); | |
| 5385 mattype.info (); | |
| 5386 | |
| 5785 | 5387 if (typ == MatrixType::Banded_Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5388 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5389 octave_idx_type n_lower = mattype.nlower (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5390 octave_idx_type ldm = n_lower + 1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5391 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5392 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5393 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
|
5394 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5395 if (! mattype.is_dense ()) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5396 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5397 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5398 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5399 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5400 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5401 tmp_data[ii++] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5402 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5403 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5404 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
|
5405 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
|
5406 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5407 octave_idx_type ri = ridx (i); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5408 if (ri >= j) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5409 m_band(ri - j, j) = data (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5410 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5411 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5412 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5413 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5414 if (calc_cond) |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5415 anorm = m_band.abs ().sum ().row (0).max (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5416 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5417 char job = 'L'; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5418 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
|
5419 nr, n_lower, tmp_data, ldm, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5420 F77_CHAR_ARG_LEN (1))); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5421 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5422 if (err != 0) |
|
10314
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 // Matrix is not positive definite!! Fall through to |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5425 // unsymmetric banded solver. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5426 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5427 typ = MatrixType::Banded; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5428 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5429 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5430 err = 0; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5431 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5432 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5433 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5434 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5435 { |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5436 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5437 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5438 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
|
5439 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5440 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5441 F77_XFCN (dpbcon, DPBCON, |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5442 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5443 nr, n_lower, tmp_data, ldm, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5444 anorm, rcond, pz, piz, err |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5445 F77_CHAR_ARG_LEN (1))); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5446 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5447 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5448 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5449 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5450 volatile double rcond_plus_one = rcond + 1.0; |
|
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 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5453 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5454 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5455 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5456 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5457 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5458 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5459 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5460 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5461 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5462 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5463 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5464 rcond); |
|
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 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5467 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5468 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5469 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5470 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5471 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5472 octave_idx_type b_nr = b.rows (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5473 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5474 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5475 OCTAVE_LOCAL_BUFFER (double, Bz, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5476 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5477 // 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
|
5478 // will be as many as in b |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5479 volatile octave_idx_type x_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5480 volatile octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5481 retval = SparseComplexMatrix (b_nr, b_nc, x_nz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5482 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5483 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5484 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
|
5485 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5486 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5487 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
|
5488 { |
|
18083
938f01339043
maint: Use Octave coding convention for indexing vs. function calls in liboctave/array.
Rik <rik@octave.org>
parents:
18080
diff
changeset
|
5489 Complex c = b(i,j); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5490 Bx[i] = std::real (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5491 Bz[i] = std::imag (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5492 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5493 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5494 F77_XFCN (dpbtrs, DPBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5495 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5496 nr, n_lower, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5497 ldm, Bx, b_nr, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5498 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5499 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5500 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5501 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5502 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5503 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5504 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5505 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5506 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5507 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5508 F77_XFCN (dpbtrs, DPBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5509 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5510 nr, n_lower, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5511 ldm, Bz, b_nr, err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5512 F77_CHAR_ARG_LEN (1))); |
|
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 if (err != 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5515 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5516 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5517 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5518 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5519 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5520 break; |
|
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 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5523 // Count non-zeros in work vector and adjust |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5524 // space in retval if needed |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5525 octave_idx_type new_nnz = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5526 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5527 if (Bx[i] != 0. || Bz[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5528 new_nnz++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5529 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5530 if (ii + new_nnz > x_nz) |
|
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 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5533 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
|
5534 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5535 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5536 } |
|
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 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5539 if (Bx[i] != 0. || Bz[i] != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5540 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5541 retval.xridx (ii) = i; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5542 retval.xdata (ii++) = |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5543 Complex (Bx[i], Bz[i]); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5544 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5545 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5546 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5547 } |
|
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 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5550 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5551 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5552 } |
| 5164 | 5553 |
| 5785 | 5554 if (typ == MatrixType::Banded) |
|
10314
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 // 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
|
5557 octave_idx_type n_upper = mattype.nupper (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5558 octave_idx_type n_lower = mattype.nlower (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5559 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
|
5560 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5561 Matrix m_band (ldm, nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5562 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
|
5563 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5564 if (! mattype.is_dense ()) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5565 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5566 octave_idx_type ii = 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 for (octave_idx_type j = 0; j < ldm; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5569 for (octave_idx_type i = 0; i < nc; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5570 tmp_data[ii++] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5571 } |
|
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 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
|
5574 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
|
5575 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
|
5576 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5577 // Calculate the norm of the matrix, for later use. |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5578 double anorm; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5579 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5580 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5581 for (octave_idx_type j = 0; j < nr; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5582 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5583 double atmp = 0.; |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5584 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
|
5585 atmp += fabs (data (i)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5586 if (atmp > anorm) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5587 anorm = atmp; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5588 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5589 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5590 |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5591 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
|
5592 octave_idx_type *pipvt = ipvt.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5593 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5594 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
|
5595 ldm, pipvt, err)); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5596 |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5597 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5598 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5599 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5600 rcond = 0.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5601 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5602 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5603 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5604 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5605 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5606 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5607 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5608 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5609 ("matrix singular to machine precision"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5610 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5611 } |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5612 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5613 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5614 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5615 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5616 char job = '1'; |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5617 Array<double> z (dim_vector (3 * nr, 1)); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5618 double *pz = z.fortran_vec (); |
|
11570
57632dea2446
attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
5619 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
|
5620 octave_idx_type *piz = iz.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5621 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5622 F77_XFCN (dgbcon, DGBCON, |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5623 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5624 nc, n_lower, n_upper, tmp_data, ldm, pipvt, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5625 anorm, rcond, pz, piz, err |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5626 F77_CHAR_ARG_LEN (1))); |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5627 |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
5628 if (err != 0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5629 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5630 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5631 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5632 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5633 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5634 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5635 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5636 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5637 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5638 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5639 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5640 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5641 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5642 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5643 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5644 ("matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5645 rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5646 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5647 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5648 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5649 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5650 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5651 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5652 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5653 char job = 'N'; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5654 volatile octave_idx_type x_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5655 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5656 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
|
5657 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5658 volatile octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5659 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5660 OCTAVE_LOCAL_BUFFER (double, Bx, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5661 OCTAVE_LOCAL_BUFFER (double, Bz, nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5662 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5663 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
|
5664 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5665 for (octave_idx_type i = 0; i < nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5666 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5667 Bx[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5668 Bz[i] = 0.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5669 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5670 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
|
5671 i < b.cidx (j+1); i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5672 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5673 Complex c = b.data (i); |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
5674 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
|
5675 Bz[b.ridx (i)] = std::imag (c); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5676 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5677 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5678 F77_XFCN (dgbtrs, DGBTRS, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5679 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5680 nr, n_lower, n_upper, 1, tmp_data, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5681 ldm, pipvt, Bx, b.rows (), err |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5682 F77_CHAR_ARG_LEN (1))); |
|
07ebe522dac2
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|
5683 |
|
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|
5684 F77_XFCN (dgbtrs, DGBTRS, |
|
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|
5685 (F77_CONST_CHAR_ARG2 (&job, 1), |
|
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|
5686 nr, n_lower, n_upper, 1, tmp_data, |
|
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|
5687 ldm, pipvt, Bz, b.rows (), err |
|
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|
5688 F77_CHAR_ARG_LEN (1))); |
|
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|
5689 |
|
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|
5690 // Count non-zeros in work vector and adjust |
|
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|
5691 // space in retval if needed |
|
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|
5692 octave_idx_type new_nnz = 0; |
|
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|
5693 for (octave_idx_type i = 0; i < nr; i++) |
|
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|
5694 if (Bx[i] != 0. || Bz[i] != 0.) |
|
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|
5695 new_nnz++; |
|
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|
5696 |
|
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|
5697 if (ii + new_nnz > x_nz) |
|
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changeset
|
5698 { |
|
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changeset
|
5699 // Resize the sparse matrix |
|
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|
5700 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz; |
|
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|
5701 retval.change_capacity (sz); |
|
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|
5702 x_nz = sz; |
|
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changeset
|
5703 } |
|
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diff
changeset
|
5704 |
|
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changeset
|
5705 for (octave_idx_type i = 0; i < nr; i++) |
|
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|
5706 if (Bx[i] != 0. || Bz[i] != 0.) |
|
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diff
changeset
|
5707 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
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14846
diff
changeset
|
5708 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
|
5709 retval.xdata (ii++) = |
|
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changeset
|
5710 Complex (Bx[i], Bz[i]); |
|
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|
5711 } |
|
15018
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|
5712 retval.xcidx (j+1) = ii; |
|
10314
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|
5713 } |
|
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|
5714 |
|
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|
5715 retval.maybe_compress (); |
|
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|
5716 } |
|
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changeset
|
5717 } |
|
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|
5718 } |
| 5785 | 5719 else if (typ != MatrixType::Banded_Hermitian) |
|
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|
5720 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 5721 } |
|
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|
5722 |
| 5164 | 5723 return retval; |
| 5724 } | |
| 5725 | |
| 5726 void * | |
| 5681 | 5727 SparseMatrix::factorize (octave_idx_type& err, double &rcond, Matrix &Control, |
|
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|
5728 Matrix &Info, solve_singularity_handler sing_handler, |
|
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|
5729 bool calc_cond) const |
| 5164 | 5730 { |
| 5731 // The return values | |
| 5404 | 5732 void *Numeric = 0; |
| 5164 | 5733 err = 0; |
| 5734 | |
| 5203 | 5735 #ifdef HAVE_UMFPACK |
| 5164 | 5736 // Setup the control parameters |
| 5737 Control = Matrix (UMFPACK_CONTROL, 1); | |
| 5738 double *control = Control.fortran_vec (); | |
| 5322 | 5739 UMFPACK_DNAME (defaults) (control); |
| 5164 | 5740 |
| 5893 | 5741 double tmp = octave_sparse_params::get_key ("spumoni"); |
| 5164 | 5742 if (!xisnan (tmp)) |
| 5743 Control (UMFPACK_PRL) = tmp; | |
| 5893 | 5744 tmp = octave_sparse_params::get_key ("piv_tol"); |
| 5164 | 5745 if (!xisnan (tmp)) |
| 5746 { | |
| 5747 Control (UMFPACK_SYM_PIVOT_TOLERANCE) = tmp; | |
| 5748 Control (UMFPACK_PIVOT_TOLERANCE) = tmp; | |
| 5749 } | |
| 5750 | |
| 5751 // Set whether we are allowed to modify Q or not | |
| 5893 | 5752 tmp = octave_sparse_params::get_key ("autoamd"); |
| 5164 | 5753 if (!xisnan (tmp)) |
| 5754 Control (UMFPACK_FIXQ) = tmp; | |
| 5755 | |
| 5322 | 5756 UMFPACK_DNAME (report_control) (control); |
| 5164 | 5757 |
| 5275 | 5758 const octave_idx_type *Ap = cidx (); |
| 5759 const octave_idx_type *Ai = ridx (); | |
| 5164 | 5760 const double *Ax = data (); |
| 5275 | 5761 octave_idx_type nr = rows (); |
| 5762 octave_idx_type nc = cols (); | |
| 5164 | 5763 |
| 5322 | 5764 UMFPACK_DNAME (report_matrix) (nr, nc, Ap, Ai, Ax, 1, control); |
| 5164 | 5765 |
| 5766 void *Symbolic; | |
| 5767 Info = Matrix (1, UMFPACK_INFO); | |
| 5768 double *info = Info.fortran_vec (); | |
| 7520 | 5769 int status = UMFPACK_DNAME (qsymbolic) (nr, nc, Ap, Ai, Ax, 0, |
|
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diff
changeset
|
5770 &Symbolic, control, info); |
| 5164 | 5771 |
| 5772 if (status < 0) | |
| 5773 { | |
|
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|
5774 (*current_liboctave_error_handler) |
|
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|
5775 ("SparseMatrix::solve symbolic factorization failed"); |
| 5164 | 5776 err = -1; |
| 5777 | |
| 5322 | 5778 UMFPACK_DNAME (report_status) (control, status); |
| 5779 UMFPACK_DNAME (report_info) (control, info); | |
| 5780 | |
|
17769
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diff
changeset
|
5781 UMFPACK_DNAME (free_symbolic) (&Symbolic); |
| 5164 | 5782 } |
| 5783 else | |
| 5784 { | |
| 5322 | 5785 UMFPACK_DNAME (report_symbolic) (Symbolic, control); |
| 5786 | |
| 5787 status = UMFPACK_DNAME (numeric) (Ap, Ai, Ax, Symbolic, | |
|
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changeset
|
5788 &Numeric, control, info); |
|
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diff
changeset
|
5789 UMFPACK_DNAME (free_symbolic) (&Symbolic); |
| 5164 | 5790 |
| 5681 | 5791 if (calc_cond) |
|
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|
5792 rcond = Info (UMFPACK_RCOND); |
| 5681 | 5793 else |
|
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|
5794 rcond = 1.; |
| 5164 | 5795 volatile double rcond_plus_one = rcond + 1.0; |
| 5796 | |
|
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|
5797 if (status == UMFPACK_WARNING_singular_matrix || |
|
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changeset
|
5798 rcond_plus_one == 1.0 || xisnan (rcond)) |
|
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|
5799 { |
|
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changeset
|
5800 UMFPACK_DNAME (report_numeric) (Numeric, control); |
|
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changeset
|
5801 |
|
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changeset
|
5802 err = -2; |
|
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diff
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|
5803 |
|
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changeset
|
5804 if (sing_handler) |
|
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|
5805 sing_handler (rcond); |
|
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changeset
|
5806 else |
|
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changeset
|
5807 (*current_liboctave_error_handler) |
|
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changeset
|
5808 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
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changeset
|
5809 rcond); |
|
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changeset
|
5810 |
|
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changeset
|
5811 } |
| 5610 | 5812 else if (status < 0) |
|
17769
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diff
changeset
|
5813 { |
|
49a5a4be04a1
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diff
changeset
|
5814 (*current_liboctave_error_handler) |
|
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17744
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changeset
|
5815 ("SparseMatrix::solve numeric factorization failed"); |
|
49a5a4be04a1
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diff
changeset
|
5816 |
|
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changeset
|
5817 UMFPACK_DNAME (report_status) (control, status); |
|
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changeset
|
5818 UMFPACK_DNAME (report_info) (control, info); |
|
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changeset
|
5819 |
|
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changeset
|
5820 err = -1; |
|
49a5a4be04a1
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changeset
|
5821 } |
|
49a5a4be04a1
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diff
changeset
|
5822 else |
|
49a5a4be04a1
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changeset
|
5823 { |
|
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changeset
|
5824 UMFPACK_DNAME (report_numeric) (Numeric, control); |
|
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17744
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changeset
|
5825 } |
| 5164 | 5826 } |
| 5827 | |
| 5828 if (err != 0) | |
| 5322 | 5829 UMFPACK_DNAME (free_numeric) (&Numeric); |
| 5164 | 5830 |
| 5203 | 5831 #else |
| 5832 (*current_liboctave_error_handler) ("UMFPACK not installed"); | |
| 5833 #endif | |
| 5834 | |
| 5164 | 5835 return Numeric; |
| 5836 } | |
| 5837 | |
| 5838 Matrix | |
| 5785 | 5839 SparseMatrix::fsolve (MatrixType &mattype, const Matrix& b, |
|
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|
5840 octave_idx_type& err, double& rcond, |
|
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changeset
|
5841 solve_singularity_handler sing_handler, |
|
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changeset
|
5842 bool calc_cond) const |
| 5164 | 5843 { |
| 5844 Matrix retval; | |
| 5845 | |
| 5275 | 5846 octave_idx_type nr = rows (); |
| 5847 octave_idx_type nc = cols (); | |
| 5164 | 5848 err = 0; |
| 5849 | |
| 6924 | 5850 if (nr != nc || nr != b.rows ()) |
| 5164 | 5851 (*current_liboctave_error_handler) |
| 5852 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 5853 else if (nr == 0 || b.cols () == 0) |
| 5854 retval = Matrix (nc, b.cols (), 0.0); | |
| 5164 | 5855 else |
| 5856 { | |
| 5857 // Print spparms("spumoni") info if requested | |
| 5506 | 5858 volatile int typ = mattype.type (); |
| 5164 | 5859 mattype.info (); |
| 5860 | |
| 5785 | 5861 if (typ == MatrixType::Hermitian) |
|
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|
5862 { |
| 5506 | 5863 #ifdef HAVE_CHOLMOD |
|
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changeset
|
5864 cholmod_common Common; |
|
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changeset
|
5865 cholmod_common *cm = &Common; |
|
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changeset
|
5866 |
|
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changeset
|
5867 // Setup initial parameters |
|
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changeset
|
5868 CHOLMOD_NAME(start) (cm); |
|
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changeset
|
5869 cm->prefer_zomplex = false; |
|
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changeset
|
5870 |
|
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changeset
|
5871 double spu = octave_sparse_params::get_key ("spumoni"); |
|
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|
5872 if (spu == 0.) |
|
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changeset
|
5873 { |
|
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changeset
|
5874 cm->print = -1; |
|
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changeset
|
5875 cm->print_function = 0; |
|
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5876 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5877 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5878 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5879 cm->print = static_cast<int> (spu) + 2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5880 cm->print_function =&SparseCholPrint; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5881 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5882 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5883 cm->error_handler = &SparseCholError; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5884 cm->complex_divide = CHOLMOD_NAME(divcomplex); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5885 cm->hypotenuse = CHOLMOD_NAME(hypot); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5886 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5887 cm->final_ll = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5888 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5889 cholmod_sparse Astore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5890 cholmod_sparse *A = &Astore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5891 double dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5892 A->nrow = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5893 A->ncol = nc; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5894 |
|
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
|
5895 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
|
5896 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
|
5897 A->nzmax = nnz (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5898 A->packed = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5899 A->sorted = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5900 A->nz = 0; |
|
16313
6aafe87a3144
use int64_t for idx type if --enable-64
John W. Eaton <jwe@octave.org>
parents:
15271
diff
changeset
|
5901 #ifdef USE_64_BIT_IDX_T |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5902 A->itype = CHOLMOD_LONG; |
| 5506 | 5903 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5904 A->itype = CHOLMOD_INT; |
| 5506 | 5905 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5906 A->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5907 A->stype = 1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5908 A->xtype = CHOLMOD_REAL; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5909 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5910 if (nr < 1) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5911 A->x = &dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5912 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
|
5913 A->x = data (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5914 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5915 cholmod_dense Bstore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5916 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
|
5917 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
|
5918 B->ncol = b.cols (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5919 B->d = B->nrow; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5920 B->nzmax = B->nrow * B->ncol; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5921 B->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5922 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
|
5923 if (nc < 1 || b.cols () < 1) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5924 B->x = &dummy; |
|
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 // 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
|
5927 B->x = const_cast<double *>(b.fortran_vec ()); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5928 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5929 cholmod_factor *L; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5930 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5931 L = CHOLMOD_NAME(analyze) (A, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5932 CHOLMOD_NAME(factorize) (A, L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5933 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5934 rcond = CHOLMOD_NAME(rcond)(L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5935 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5936 rcond = 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5937 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5938 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5939 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5940 if (rcond == 0.0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5941 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5942 // Either its indefinite or singular. Try UMFPACK |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5943 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5944 typ = MatrixType::Full; |
|
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 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5947 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5948 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5949 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5950 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5951 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5952 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5953 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5954 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5955 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5956 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5957 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5958 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5959 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5960 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5961 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5962 rcond); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
5963 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5964 return retval; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5965 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5966 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5967 cholmod_dense *X; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5968 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5969 X = CHOLMOD_NAME(solve) (CHOLMOD_A, L, B, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5970 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5971 |
|
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
|
5972 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
|
5973 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
|
5974 { |
|
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
|
5975 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
|
5976 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
|
5977 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
|
5978 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5979 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5980 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5981 CHOLMOD_NAME(free_dense) (&X, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5982 CHOLMOD_NAME(free_factor) (&L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5983 CHOLMOD_NAME(finish) (cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5984 static char tmp[] = " "; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5985 CHOLMOD_NAME(print_common) (tmp, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5986 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5987 } |
| 5506 | 5988 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5989 (*current_liboctave_warning_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
5990 ("CHOLMOD not installed"); |
|
07ebe522dac2
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|
5991 |
|
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|
5992 mattype.mark_as_unsymmetric (); |
|
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|
5993 typ = MatrixType::Full; |
| 5506 | 5994 #endif |
|
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|
5995 } |
| 5164 | 5996 |
| 5785 | 5997 if (typ == MatrixType::Full) |
|
10314
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|
5998 { |
| 5203 | 5999 #ifdef HAVE_UMFPACK |
|
10314
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|
6000 Matrix Control, Info; |
|
11586
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diff
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|
6001 void *Numeric = |
|
10314
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untabify liboctave C++ sources
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|
6002 factorize (err, rcond, Control, Info, sing_handler, calc_cond); |
|
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|
6003 |
|
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changeset
|
6004 if (err == 0) |
|
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diff
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|
6005 { |
|
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changeset
|
6006 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>
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|
6007 retval.resize (b.rows (), b.cols ()); |
|
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|
6008 double *result = retval.fortran_vec (); |
|
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untabify liboctave C++ sources
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|
6009 octave_idx_type b_nr = b.rows (); |
|
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untabify liboctave C++ sources
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|
6010 octave_idx_type b_nc = b.cols (); |
|
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untabify liboctave C++ sources
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diff
changeset
|
6011 int status = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
6012 double *control = Control.fortran_vec (); |
|
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untabify liboctave C++ sources
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|
6013 double *info = Info.fortran_vec (); |
|
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untabify liboctave C++ sources
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|
6014 const octave_idx_type *Ap = cidx (); |
|
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untabify liboctave C++ sources
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|
6015 const octave_idx_type *Ai = ridx (); |
|
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untabify liboctave C++ sources
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|
6016 const double *Ax = data (); |
|
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|
6017 |
|
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changeset
|
6018 for (octave_idx_type j = 0, iidx = 0; j < b_nc; j++, iidx += b_nr) |
|
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|
6019 { |
|
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diff
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|
6020 status = UMFPACK_DNAME (solve) (UMFPACK_A, Ap, |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
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17744
diff
changeset
|
6021 Ai, Ax, &result[iidx], |
|
49a5a4be04a1
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Rik <rik@octave.org>
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17744
diff
changeset
|
6022 &Bx[iidx], Numeric, control, |
|
49a5a4be04a1
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Rik <rik@octave.org>
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17744
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changeset
|
6023 info); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6024 if (status < 0) |
|
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untabify liboctave C++ sources
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diff
changeset
|
6025 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
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diff
changeset
|
6026 (*current_liboctave_error_handler) |
|
10314
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untabify liboctave C++ sources
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changeset
|
6027 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6028 |
|
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untabify liboctave C++ sources
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changeset
|
6029 UMFPACK_DNAME (report_status) (control, status); |
|
11586
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changeset
|
6030 |
|
10314
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diff
changeset
|
6031 err = -1; |
|
11586
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strip trailing whitespace from source files
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diff
changeset
|
6032 |
|
10314
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diff
changeset
|
6033 break; |
|
07ebe522dac2
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diff
changeset
|
6034 } |
|
07ebe522dac2
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diff
changeset
|
6035 } |
|
07ebe522dac2
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diff
changeset
|
6036 |
|
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diff
changeset
|
6037 UMFPACK_DNAME (report_info) (control, info); |
|
11586
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strip trailing whitespace from source files
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changeset
|
6038 |
|
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diff
changeset
|
6039 UMFPACK_DNAME (free_numeric) (&Numeric); |
|
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diff
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|
6040 } |
|
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diff
changeset
|
6041 else |
|
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diff
changeset
|
6042 mattype.mark_as_rectangular (); |
| 5681 | 6043 |
| 5203 | 6044 #else |
|
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diff
changeset
|
6045 (*current_liboctave_error_handler) ("UMFPACK not installed"); |
| 5203 | 6046 #endif |
|
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diff
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|
6047 } |
| 5785 | 6048 else if (typ != MatrixType::Hermitian) |
|
10314
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diff
changeset
|
6049 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 6050 } |
|
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strip trailing whitespace from source files
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diff
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|
6051 |
| 5164 | 6052 return retval; |
| 6053 } | |
| 6054 | |
| 6055 SparseMatrix | |
| 5785 | 6056 SparseMatrix::fsolve (MatrixType &mattype, const SparseMatrix& b, |
|
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changeset
|
6057 octave_idx_type& err, double& rcond, |
|
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untabify liboctave C++ sources
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diff
changeset
|
6058 solve_singularity_handler sing_handler, |
|
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diff
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|
6059 bool calc_cond) const |
| 5164 | 6060 { |
| 6061 SparseMatrix retval; | |
| 6062 | |
| 5275 | 6063 octave_idx_type nr = rows (); |
| 6064 octave_idx_type nc = cols (); | |
| 5164 | 6065 err = 0; |
| 6066 | |
| 6924 | 6067 if (nr != nc || nr != b.rows ()) |
| 5164 | 6068 (*current_liboctave_error_handler) |
| 6069 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 6070 else if (nr == 0 || b.cols () == 0) |
| 6071 retval = SparseMatrix (nc, b.cols ()); | |
| 5164 | 6072 else |
| 6073 { | |
| 6074 // Print spparms("spumoni") info if requested | |
| 5506 | 6075 volatile int typ = mattype.type (); |
| 5164 | 6076 mattype.info (); |
| 6077 | |
| 5785 | 6078 if (typ == MatrixType::Hermitian) |
|
10314
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|
6079 { |
| 5506 | 6080 #ifdef HAVE_CHOLMOD |
|
10314
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|
6081 cholmod_common Common; |
|
07ebe522dac2
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changeset
|
6082 cholmod_common *cm = &Common; |
|
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|
6083 |
|
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changeset
|
6084 // Setup initial parameters |
|
07ebe522dac2
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|
6085 CHOLMOD_NAME(start) (cm); |
|
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untabify liboctave C++ sources
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|
6086 cm->prefer_zomplex = false; |
|
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|
6087 |
|
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changeset
|
6088 double spu = octave_sparse_params::get_key ("spumoni"); |
|
07ebe522dac2
untabify liboctave C++ sources
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|
6089 if (spu == 0.) |
|
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changeset
|
6090 { |
|
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changeset
|
6091 cm->print = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
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changeset
|
6092 cm->print_function = 0; |
|
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diff
changeset
|
6093 } |
|
07ebe522dac2
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diff
changeset
|
6094 else |
|
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diff
changeset
|
6095 { |
|
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changeset
|
6096 cm->print = static_cast<int> (spu) + 2; |
|
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untabify liboctave C++ sources
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|
6097 cm->print_function =&SparseCholPrint; |
|
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changeset
|
6098 } |
|
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changeset
|
6099 |
|
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changeset
|
6100 cm->error_handler = &SparseCholError; |
|
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untabify liboctave C++ sources
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|
6101 cm->complex_divide = CHOLMOD_NAME(divcomplex); |
|
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|
6102 cm->hypotenuse = CHOLMOD_NAME(hypot); |
|
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|
6103 |
|
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|
6104 cm->final_ll = true; |
|
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|
6105 |
|
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changeset
|
6106 cholmod_sparse Astore; |
|
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|
6107 cholmod_sparse *A = &Astore; |
|
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|
6108 double dummy; |
|
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|
6109 A->nrow = nr; |
|
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|
6110 A->ncol = nc; |
|
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|
6111 |
|
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|
6112 A->p = cidx (); |
|
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|
6113 A->i = ridx (); |
|
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|
6114 A->nzmax = nnz (); |
|
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|
6115 A->packed = true; |
|
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|
6116 A->sorted = true; |
|
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|
6117 A->nz = 0; |
|
16313
6aafe87a3144
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|
6118 #ifdef USE_64_BIT_IDX_T |
|
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|
6119 A->itype = CHOLMOD_LONG; |
| 5506 | 6120 #else |
|
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|
6121 A->itype = CHOLMOD_INT; |
| 5506 | 6122 #endif |
|
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|
6123 A->dtype = CHOLMOD_DOUBLE; |
|
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|
6124 A->stype = 1; |
|
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|
6125 A->xtype = CHOLMOD_REAL; |
|
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|
6126 |
|
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|
6127 if (nr < 1) |
|
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|
6128 A->x = &dummy; |
|
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|
6129 else |
|
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|
6130 A->x = data (); |
|
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|
6131 |
|
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|
6132 cholmod_sparse Bstore; |
|
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changeset
|
6133 cholmod_sparse *B = &Bstore; |
|
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Rik <octave@nomad.inbox5.com>
parents:
14844
diff
changeset
|
6134 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
|
6135 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
|
6136 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
|
6137 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
|
6138 B->nzmax = b.nnz (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6139 B->packed = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6140 B->sorted = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6141 B->nz = 0; |
|
16313
6aafe87a3144
use int64_t for idx type if --enable-64
John W. Eaton <jwe@octave.org>
parents:
15271
diff
changeset
|
6142 #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
|
6143 B->itype = CHOLMOD_LONG; |
| 5506 | 6144 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6145 B->itype = CHOLMOD_INT; |
| 5506 | 6146 #endif |
|
10314
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6147 B->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6148 B->stype = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6149 B->xtype = CHOLMOD_REAL; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6150 |
|
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
|
6151 if (b.rows () < 1 || b.cols () < 1) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6152 B->x = &dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6153 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
|
6154 B->x = b.data (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6155 |
|
07ebe522dac2
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diff
changeset
|
6156 cholmod_factor *L; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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changeset
|
6157 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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changeset
|
6158 L = CHOLMOD_NAME(analyze) (A, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6159 CHOLMOD_NAME(factorize) (A, L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6160 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6161 rcond = CHOLMOD_NAME(rcond)(L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6162 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6163 rcond = 1.; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6164 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
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untabify liboctave C++ sources
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diff
changeset
|
6165 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6166 if (rcond == 0.0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6167 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6168 // Either its indefinite or singular. Try UMFPACK |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6169 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6170 typ = MatrixType::Full; |
|
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untabify liboctave C++ sources
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10158
diff
changeset
|
6171 } |
|
07ebe522dac2
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10158
diff
changeset
|
6172 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6173 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6174 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6175 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6176 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6177 { |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
6178 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6179 |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
6180 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6181 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6182 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6183 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
6184 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6185 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6186 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6187 ("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
|
6188 rcond); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6189 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6190 return retval; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6191 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6192 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6193 cholmod_sparse *X; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6194 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6195 X = CHOLMOD_NAME(spsolve) (CHOLMOD_A, L, B, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6196 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6197 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6198 retval = SparseMatrix (static_cast<octave_idx_type>(X->nrow), |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6199 static_cast<octave_idx_type>(X->ncol), |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6200 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
|
6201 for (octave_idx_type j = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6202 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
|
6203 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
|
6204 for (octave_idx_type j = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6205 j < static_cast<octave_idx_type>(X->nzmax); j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6206 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
6207 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
|
6208 retval.xdata (j) = static_cast<double *>(X->x)[j]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6209 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6210 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6211 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6212 CHOLMOD_NAME(free_sparse) (&X, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6213 CHOLMOD_NAME(free_factor) (&L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6214 CHOLMOD_NAME(finish) (cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6215 static char tmp[] = " "; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6216 CHOLMOD_NAME(print_common) (tmp, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6217 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6218 } |
| 5506 | 6219 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6220 (*current_liboctave_warning_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6221 ("CHOLMOD not installed"); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6222 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6223 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6224 typ = MatrixType::Full; |
| 5506 | 6225 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6226 } |
| 5164 | 6227 |
| 5785 | 6228 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
|
6229 { |
| 5203 | 6230 #ifdef HAVE_UMFPACK |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6231 Matrix Control, Info; |
|
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
6232 void *Numeric = factorize (err, rcond, Control, Info, |
|
10314
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6233 sing_handler, calc_cond); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6234 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6235 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6236 { |
|
07ebe522dac2
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John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6237 octave_idx_type b_nr = b.rows (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6238 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6239 int status = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6240 double *control = Control.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6241 double *info = Info.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6242 const octave_idx_type *Ap = cidx (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6243 const octave_idx_type *Ai = ridx (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6244 const double *Ax = data (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6245 |
|
07ebe522dac2
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diff
changeset
|
6246 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6247 OCTAVE_LOCAL_BUFFER (double, Xx, b_nr); |
|
07ebe522dac2
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10158
diff
changeset
|
6248 |
|
07ebe522dac2
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diff
changeset
|
6249 // Take a first guess that the number of non-zero terms |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6250 // will be as many as in b |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6251 octave_idx_type x_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6252 octave_idx_type ii = 0; |
|
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untabify liboctave C++ sources
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diff
changeset
|
6253 retval = SparseMatrix (b_nr, b_nc, x_nz); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6254 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
6255 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6256 for (octave_idx_type j = 0; j < b_nc; j++) |
|
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untabify liboctave C++ sources
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diff
changeset
|
6257 { |
|
07ebe522dac2
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diff
changeset
|
6258 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6259 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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diff
changeset
|
6260 Bx[i] = b.elem (i, j); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6261 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
6262 status = UMFPACK_DNAME (solve) (UMFPACK_A, Ap, |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
6263 Ai, Ax, Xx, Bx, Numeric, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
6264 control, info); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6265 if (status < 0) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6266 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6267 (*current_liboctave_error_handler) |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
6268 ("SparseMatrix::solve solve failed"); |
|
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untabify liboctave C++ sources
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diff
changeset
|
6269 |
|
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untabify liboctave C++ sources
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diff
changeset
|
6270 UMFPACK_DNAME (report_status) (control, status); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6271 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6272 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6273 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6274 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6275 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
6276 |
|
10314
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6277 for (octave_idx_type i = 0; i < b_nr; i++) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6278 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6279 double tmp = Xx[i]; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6280 if (tmp != 0.0) |
|
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untabify liboctave C++ sources
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diff
changeset
|
6281 { |
|
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6282 if (ii == x_nz) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6283 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6284 // Resize the sparse matrix |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6285 octave_idx_type sz = x_nz * (b_nc - j) / b_nc; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6286 sz = (sz > 10 ? sz : 10) + x_nz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6287 retval.change_capacity (sz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6288 x_nz = sz; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6289 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
6290 retval.xdata (ii) = tmp; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
6291 retval.xridx (ii++) = i; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6292 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6293 } |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
6294 retval.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6295 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6296 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6297 retval.maybe_compress (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6298 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6299 UMFPACK_DNAME (report_info) (control, info); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6300 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6301 UMFPACK_DNAME (free_numeric) (&Numeric); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6302 } |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6303 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6304 mattype.mark_as_rectangular (); |
| 5681 | 6305 |
| 5203 | 6306 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6307 (*current_liboctave_error_handler) ("UMFPACK not installed"); |
| 5203 | 6308 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6309 } |
| 5785 | 6310 else if (typ != MatrixType::Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6311 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 6312 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6313 |
| 5164 | 6314 return retval; |
| 6315 } | |
| 6316 | |
| 6317 ComplexMatrix | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6318 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
|
6319 octave_idx_type& err, double& rcond, |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6320 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6321 bool calc_cond) const |
| 5164 | 6322 { |
| 6323 ComplexMatrix retval; | |
| 6324 | |
| 5275 | 6325 octave_idx_type nr = rows (); |
| 6326 octave_idx_type nc = cols (); | |
| 5164 | 6327 err = 0; |
| 6328 | |
| 6924 | 6329 if (nr != nc || nr != b.rows ()) |
| 5164 | 6330 (*current_liboctave_error_handler) |
| 6331 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 6332 else if (nr == 0 || b.cols () == 0) |
| 6333 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0)); | |
| 5164 | 6334 else |
| 6335 { | |
| 6336 // Print spparms("spumoni") info if requested | |
| 5506 | 6337 volatile int typ = mattype.type (); |
| 5164 | 6338 mattype.info (); |
| 6339 | |
| 5785 | 6340 if (typ == MatrixType::Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6341 { |
| 5506 | 6342 #ifdef HAVE_CHOLMOD |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6343 cholmod_common Common; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6344 cholmod_common *cm = &Common; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6345 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6346 // Setup initial parameters |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6347 CHOLMOD_NAME(start) (cm); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6348 cm->prefer_zomplex = false; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6349 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6350 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
|
6351 if (spu == 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6352 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6353 cm->print = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6354 cm->print_function = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6355 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6356 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6357 { |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6358 cm->print = static_cast<int> (spu) + 2; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6359 cm->print_function =&SparseCholPrint; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6360 } |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6361 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6362 cm->error_handler = &SparseCholError; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6363 cm->complex_divide = CHOLMOD_NAME(divcomplex); |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6364 cm->hypotenuse = CHOLMOD_NAME(hypot); |
|
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diff
changeset
|
6365 |
|
07ebe522dac2
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changeset
|
6366 cm->final_ll = true; |
|
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diff
changeset
|
6367 |
|
07ebe522dac2
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diff
changeset
|
6368 cholmod_sparse Astore; |
|
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untabify liboctave C++ sources
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changeset
|
6369 cholmod_sparse *A = &Astore; |
|
07ebe522dac2
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diff
changeset
|
6370 double dummy; |
|
07ebe522dac2
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changeset
|
6371 A->nrow = nr; |
|
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untabify liboctave C++ sources
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changeset
|
6372 A->ncol = nc; |
|
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untabify liboctave C++ sources
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changeset
|
6373 |
|
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
|
6374 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
|
6375 A->i = ridx (); |
|
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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diff
changeset
|
6376 A->nzmax = nnz (); |
|
10314
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changeset
|
6377 A->packed = true; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6378 A->sorted = true; |
|
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changeset
|
6379 A->nz = 0; |
|
16313
6aafe87a3144
use int64_t for idx type if --enable-64
John W. Eaton <jwe@octave.org>
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15271
diff
changeset
|
6380 #ifdef USE_64_BIT_IDX_T |
|
10314
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changeset
|
6381 A->itype = CHOLMOD_LONG; |
| 5506 | 6382 #else |
|
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changeset
|
6383 A->itype = CHOLMOD_INT; |
| 5506 | 6384 #endif |
|
10314
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changeset
|
6385 A->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
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changeset
|
6386 A->stype = 1; |
|
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changeset
|
6387 A->xtype = CHOLMOD_REAL; |
|
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changeset
|
6388 |
|
07ebe522dac2
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changeset
|
6389 if (nr < 1) |
|
07ebe522dac2
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changeset
|
6390 A->x = &dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6391 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
|
6392 A->x = data (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6393 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6394 cholmod_dense Bstore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6395 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
|
6396 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
|
6397 B->ncol = b.cols (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6398 B->d = B->nrow; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6399 B->nzmax = B->nrow * B->ncol; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6400 B->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6401 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
|
6402 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
|
6403 B->x = &dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6404 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6405 // 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
|
6406 B->x = const_cast<Complex *>(b.fortran_vec ()); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6407 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6408 cholmod_factor *L; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6409 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6410 L = CHOLMOD_NAME(analyze) (A, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6411 CHOLMOD_NAME(factorize) (A, L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6412 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6413 rcond = CHOLMOD_NAME(rcond)(L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6414 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6415 rcond = 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6416 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6417 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6418 if (rcond == 0.0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6419 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6420 // Either its indefinite or singular. Try UMFPACK |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6421 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6422 typ = MatrixType::Full; |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
6423 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6424 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6425 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6426 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6427 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6428 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6429 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6430 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6431 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6432 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6433 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6434 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6435 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6436 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6437 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6438 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6439 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6440 rcond); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6441 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6442 return retval; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6443 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6444 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6445 cholmod_dense *X; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6446 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6447 X = CHOLMOD_NAME(solve) (CHOLMOD_A, L, B, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6448 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6449 |
|
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
|
6450 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
|
6451 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
|
6452 { |
|
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
|
6453 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
|
6454 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
|
6455 retval.xelem (i,j) = static_cast<Complex *>(X->x)[jr + i]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6456 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6457 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6458 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6459 CHOLMOD_NAME(free_dense) (&X, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6460 CHOLMOD_NAME(free_factor) (&L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6461 CHOLMOD_NAME(finish) (cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6462 static char tmp[] = " "; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6463 CHOLMOD_NAME(print_common) (tmp, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6464 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6465 } |
| 5506 | 6466 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6467 (*current_liboctave_warning_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6468 ("CHOLMOD not installed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6469 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6470 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6471 typ = MatrixType::Full; |
| 5506 | 6472 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6473 } |
| 5164 | 6474 |
| 5785 | 6475 if (typ == MatrixType::Full) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6476 { |
| 5203 | 6477 #ifdef HAVE_UMFPACK |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6478 Matrix Control, Info; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6479 void *Numeric = factorize (err, rcond, Control, Info, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6480 sing_handler, calc_cond); |
|
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 (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6483 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6484 octave_idx_type b_nr = b.rows (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6485 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6486 int status = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6487 double *control = Control.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6488 double *info = Info.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6489 const octave_idx_type *Ap = cidx (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6490 const octave_idx_type *Ai = ridx (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6491 const double *Ax = data (); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
6492 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6493 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6494 OCTAVE_LOCAL_BUFFER (double, Bz, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6495 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6496 retval.resize (b_nr, b_nc); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6497 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6498 OCTAVE_LOCAL_BUFFER (double, Xx, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6499 OCTAVE_LOCAL_BUFFER (double, Xz, b_nr); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6500 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6501 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
|
6502 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6503 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
|
6504 { |
|
18083
938f01339043
maint: Use Octave coding convention for indexing vs. function calls in liboctave/array.
Rik <rik@octave.org>
parents:
18080
diff
changeset
|
6505 Complex c = b(i,j); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6506 Bx[i] = std::real (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6507 Bz[i] = std::imag (c); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6508 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6509 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6510 status = UMFPACK_DNAME (solve) (UMFPACK_A, Ap, |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
6511 Ai, Ax, Xx, Bx, Numeric, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
6512 control, info); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6513 int status2 = UMFPACK_DNAME (solve) (UMFPACK_A, |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
6514 Ap, Ai, Ax, Xz, Bz, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
6515 Numeric, control, info); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6516 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6517 if (status < 0 || status2 < 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6518 { |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6519 (*current_liboctave_error_handler) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6520 ("SparseMatrix::solve solve failed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6521 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6522 UMFPACK_DNAME (report_status) (control, status); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6523 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6524 err = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6525 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6526 break; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6527 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6528 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6529 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
|
6530 retval(i, j) = Complex (Xx[i], Xz[i]); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6531 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6532 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6533 UMFPACK_DNAME (report_info) (control, info); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6534 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6535 UMFPACK_DNAME (free_numeric) (&Numeric); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6536 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6537 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6538 mattype.mark_as_rectangular (); |
| 5681 | 6539 |
| 5203 | 6540 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6541 (*current_liboctave_error_handler) ("UMFPACK not installed"); |
| 5203 | 6542 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6543 } |
| 5785 | 6544 else if (typ != MatrixType::Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6545 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 6546 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6547 |
| 5164 | 6548 return retval; |
| 6549 } | |
| 6550 | |
| 6551 SparseComplexMatrix | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6552 SparseMatrix::fsolve (MatrixType &mattype, const SparseComplexMatrix& b, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6553 octave_idx_type& err, double& rcond, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6554 solve_singularity_handler sing_handler, |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6555 bool calc_cond) const |
| 5164 | 6556 { |
| 6557 SparseComplexMatrix retval; | |
| 6558 | |
| 5275 | 6559 octave_idx_type nr = rows (); |
| 6560 octave_idx_type nc = cols (); | |
| 5164 | 6561 err = 0; |
| 6562 | |
| 6924 | 6563 if (nr != nc || nr != b.rows ()) |
| 5164 | 6564 (*current_liboctave_error_handler) |
| 6565 ("matrix dimension mismatch solution of linear equations"); | |
| 6924 | 6566 else if (nr == 0 || b.cols () == 0) |
| 6567 retval = SparseComplexMatrix (nc, b.cols ()); | |
| 5164 | 6568 else |
| 6569 { | |
| 6570 // Print spparms("spumoni") info if requested | |
| 5506 | 6571 volatile int typ = mattype.type (); |
| 5164 | 6572 mattype.info (); |
| 6573 | |
| 5785 | 6574 if (typ == MatrixType::Hermitian) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6575 { |
| 5506 | 6576 #ifdef HAVE_CHOLMOD |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6577 cholmod_common Common; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6578 cholmod_common *cm = &Common; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6579 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6580 // Setup initial parameters |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6581 CHOLMOD_NAME(start) (cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6582 cm->prefer_zomplex = false; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6583 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6584 double spu = octave_sparse_params::get_key ("spumoni"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6585 if (spu == 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6586 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6587 cm->print = -1; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6588 cm->print_function = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6589 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6590 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6591 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6592 cm->print = static_cast<int> (spu) + 2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6593 cm->print_function =&SparseCholPrint; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6594 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6595 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6596 cm->error_handler = &SparseCholError; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6597 cm->complex_divide = CHOLMOD_NAME(divcomplex); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6598 cm->hypotenuse = CHOLMOD_NAME(hypot); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6599 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6600 cm->final_ll = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6601 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6602 cholmod_sparse Astore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6603 cholmod_sparse *A = &Astore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6604 double dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6605 A->nrow = nr; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6606 A->ncol = nc; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6607 |
|
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
|
6608 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
|
6609 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
|
6610 A->nzmax = nnz (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6611 A->packed = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6612 A->sorted = true; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6613 A->nz = 0; |
|
16313
6aafe87a3144
use int64_t for idx type if --enable-64
John W. Eaton <jwe@octave.org>
parents:
15271
diff
changeset
|
6614 #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
|
6615 A->itype = CHOLMOD_LONG; |
| 5506 | 6616 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6617 A->itype = CHOLMOD_INT; |
| 5506 | 6618 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6619 A->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6620 A->stype = 1; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6621 A->xtype = CHOLMOD_REAL; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6622 |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6623 if (nr < 1) |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6624 A->x = &dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
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diff
changeset
|
6625 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
|
6626 A->x = data (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6627 |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6628 cholmod_sparse Bstore; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6629 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
|
6630 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
|
6631 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
|
6632 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
|
6633 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
|
6634 B->nzmax = b.nnz (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6635 B->packed = true; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6636 B->sorted = true; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6637 B->nz = 0; |
|
16313
6aafe87a3144
use int64_t for idx type if --enable-64
John W. Eaton <jwe@octave.org>
parents:
15271
diff
changeset
|
6638 #ifdef USE_64_BIT_IDX_T |
|
10314
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untabify liboctave C++ sources
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10158
diff
changeset
|
6639 B->itype = CHOLMOD_LONG; |
| 5506 | 6640 #else |
|
10314
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untabify liboctave C++ sources
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diff
changeset
|
6641 B->itype = CHOLMOD_INT; |
| 5506 | 6642 #endif |
|
10314
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untabify liboctave C++ sources
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10158
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changeset
|
6643 B->dtype = CHOLMOD_DOUBLE; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6644 B->stype = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6645 B->xtype = CHOLMOD_COMPLEX; |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6646 |
|
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
|
6647 if (b.rows () < 1 || b.cols () < 1) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
6648 B->x = &dummy; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6649 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
|
6650 B->x = b.data (); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6651 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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diff
changeset
|
6652 cholmod_factor *L; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6653 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6654 L = CHOLMOD_NAME(analyze) (A, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6655 CHOLMOD_NAME(factorize) (A, L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6656 if (calc_cond) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6657 rcond = CHOLMOD_NAME(rcond)(L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6658 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6659 rcond = 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6660 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6661 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6662 if (rcond == 0.0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6663 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6664 // Either its indefinite or singular. Try UMFPACK |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6665 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6666 typ = MatrixType::Full; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6667 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6668 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6669 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6670 volatile double rcond_plus_one = rcond + 1.0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6671 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6672 if (rcond_plus_one == 1.0 || xisnan (rcond)) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6673 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6674 err = -2; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6675 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6676 if (sing_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6677 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6678 sing_handler (rcond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6679 mattype.mark_as_rectangular (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6680 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6681 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6682 (*current_liboctave_error_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6683 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g", |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6684 rcond); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6685 |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6686 return retval; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6687 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6688 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6689 cholmod_sparse *X; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6690 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6691 X = CHOLMOD_NAME(spsolve) (CHOLMOD_A, L, B, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6692 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6693 |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6694 retval = SparseComplexMatrix |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
6695 (static_cast<octave_idx_type>(X->nrow), |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
6696 static_cast<octave_idx_type>(X->ncol), |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
6697 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
|
6698 for (octave_idx_type j = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6699 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
|
6700 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
|
6701 for (octave_idx_type j = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6702 j < static_cast<octave_idx_type>(X->nzmax); j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6703 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
6704 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
|
6705 retval.xdata (j) = static_cast<Complex *>(X->x)[j]; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6706 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6707 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6708 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6709 CHOLMOD_NAME(free_sparse) (&X, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6710 CHOLMOD_NAME(free_factor) (&L, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6711 CHOLMOD_NAME(finish) (cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6712 static char tmp[] = " "; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6713 CHOLMOD_NAME(print_common) (tmp, cm); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6714 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6715 } |
| 5506 | 6716 #else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6717 (*current_liboctave_warning_handler) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6718 ("CHOLMOD not installed"); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6719 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6720 mattype.mark_as_unsymmetric (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6721 typ = MatrixType::Full; |
| 5506 | 6722 #endif |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6723 } |
| 5164 | 6724 |
| 5785 | 6725 if (typ == MatrixType::Full) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6726 { |
| 5203 | 6727 #ifdef HAVE_UMFPACK |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6728 Matrix Control, Info; |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6729 void *Numeric = factorize (err, rcond, Control, Info, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6730 sing_handler, calc_cond); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6731 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6732 if (err == 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6733 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6734 octave_idx_type b_nr = b.rows (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6735 octave_idx_type b_nc = b.cols (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6736 int status = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6737 double *control = Control.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6738 double *info = Info.fortran_vec (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6739 const octave_idx_type *Ap = cidx (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6740 const octave_idx_type *Ai = ridx (); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6741 const double *Ax = data (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6742 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6743 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
|
6744 OCTAVE_LOCAL_BUFFER (double, Bz, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6745 |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
6746 // Take a first guess that the number of non-zero terms |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
6747 // will be as many as in b |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6748 octave_idx_type x_nz = b.nnz (); |
|
07ebe522dac2
untabify liboctave C++ sources
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10158
diff
changeset
|
6749 octave_idx_type ii = 0; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6750 retval = SparseComplexMatrix (b_nr, b_nc, x_nz); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6751 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6752 OCTAVE_LOCAL_BUFFER (double, Xx, b_nr); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
6753 OCTAVE_LOCAL_BUFFER (double, Xz, b_nr); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
6754 |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
6755 retval.xcidx (0) = 0; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6756 for (octave_idx_type j = 0; j < b_nc; j++) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
6757 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6758 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
|
6759 { |
|
18083
938f01339043
maint: Use Octave coding convention for indexing vs. function calls in liboctave/array.
Rik <rik@octave.org>
parents:
18080
diff
changeset
|
6760 Complex c = b(i,j); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6761 Bx[i] = std::real (c); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
6762 Bz[i] = std::imag (c); |
|
07ebe522dac2
untabify liboctave C++ sources
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parents:
10158
diff
changeset
|
6763 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
6764 |
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6765 status = UMFPACK_DNAME (solve) (UMFPACK_A, Ap, |
|
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6766 Ai, Ax, Xx, Bx, Numeric, |
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|
6767 control, info); |
|
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6768 int status2 = UMFPACK_DNAME (solve) (UMFPACK_A, |
|
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|
6769 Ap, Ai, Ax, Xz, Bz, |
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6770 Numeric, control, info); |
|
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6771 |
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6772 if (status < 0 || status2 < 0) |
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6773 { |
|
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6774 (*current_liboctave_error_handler) |
|
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6775 ("SparseMatrix::solve solve failed"); |
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6776 |
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|
6777 UMFPACK_DNAME (report_status) (control, status); |
|
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6778 |
|
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|
6779 err = -1; |
|
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|
6780 |
|
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|
6781 break; |
|
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|
6782 } |
|
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|
6783 |
|
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6784 for (octave_idx_type i = 0; i < b_nr; i++) |
|
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|
6785 { |
|
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|
6786 Complex tmp = Complex (Xx[i], Xz[i]); |
|
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6787 if (tmp != 0.0) |
|
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|
6788 { |
|
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6789 if (ii == x_nz) |
|
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|
6790 { |
|
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|
6791 // Resize the sparse matrix |
|
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6792 octave_idx_type sz = x_nz * (b_nc - j) / b_nc; |
|
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|
6793 sz = (sz > 10 ? sz : 10) + x_nz; |
|
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|
6794 retval.change_capacity (sz); |
|
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6795 x_nz = sz; |
|
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|
6796 } |
|
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|
6797 retval.xdata (ii) = tmp; |
|
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|
6798 retval.xridx (ii++) = i; |
|
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|
6799 } |
|
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|
6800 } |
|
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|
6801 retval.xcidx (j+1) = ii; |
|
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|
6802 } |
|
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|
6803 |
|
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|
6804 retval.maybe_compress (); |
|
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|
6805 |
|
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|
6806 UMFPACK_DNAME (report_info) (control, info); |
|
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|
6807 |
|
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|
6808 UMFPACK_DNAME (free_numeric) (&Numeric); |
|
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|
6809 } |
|
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|
6810 else |
|
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|
6811 mattype.mark_as_rectangular (); |
| 5203 | 6812 #else |
|
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|
6813 (*current_liboctave_error_handler) ("UMFPACK not installed"); |
| 5203 | 6814 #endif |
|
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6815 } |
| 5785 | 6816 else if (typ != MatrixType::Hermitian) |
|
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|
6817 (*current_liboctave_error_handler) ("incorrect matrix type"); |
| 5164 | 6818 } |
|
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|
6819 |
| 5164 | 6820 return retval; |
| 6821 } | |
| 6822 | |
| 6823 Matrix | |
| 5785 | 6824 SparseMatrix::solve (MatrixType &mattype, const Matrix& b) const |
| 5164 | 6825 { |
| 5275 | 6826 octave_idx_type info; |
| 5164 | 6827 double rcond; |
| 6828 return solve (mattype, b, info, rcond, 0); | |
| 6829 } | |
| 6830 | |
| 6831 Matrix | |
|
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|
6832 SparseMatrix::solve (MatrixType &mattype, const Matrix& b, |
|
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|
6833 octave_idx_type& info) const |
| 5164 | 6834 { |
| 6835 double rcond; | |
| 6836 return solve (mattype, b, info, rcond, 0); | |
| 6837 } | |
| 6838 | |
| 6839 Matrix | |
|
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|
6840 SparseMatrix::solve (MatrixType &mattype, const Matrix& b, |
|
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|
6841 octave_idx_type& info, double& rcond) const |
| 5164 | 6842 { |
| 6843 return solve (mattype, b, info, rcond, 0); | |
| 6844 } | |
| 6845 | |
| 6846 Matrix | |
|
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|
6847 SparseMatrix::solve (MatrixType &mattype, const Matrix& b, octave_idx_type& err, |
|
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|
6848 double& rcond, solve_singularity_handler sing_handler, |
|
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|
6849 bool singular_fallback) const |
| 5164 | 6850 { |
| 5681 | 6851 Matrix retval; |
| 5322 | 6852 int typ = mattype.type (false); |
| 5164 | 6853 |
| 5785 | 6854 if (typ == MatrixType::Unknown) |
| 5164 | 6855 typ = mattype.type (*this); |
| 6856 | |
| 5681 | 6857 // Only calculate the condition number for CHOLMOD/UMFPACK |
| 5785 | 6858 if (typ == MatrixType::Diagonal || typ == MatrixType::Permuted_Diagonal) |
| 5681 | 6859 retval = dsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6860 else if (typ == MatrixType::Upper || typ == MatrixType::Permuted_Upper) |
| 5681 | 6861 retval = utsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6862 else if (typ == MatrixType::Lower || typ == MatrixType::Permuted_Lower) |
| 5681 | 6863 retval = ltsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6864 else if (typ == MatrixType::Banded || typ == MatrixType::Banded_Hermitian) |
| 5681 | 6865 retval = bsolve (mattype, b, err, rcond, sing_handler, false); |
|
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|
6866 else if (typ == MatrixType::Tridiagonal || |
|
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|
6867 typ == MatrixType::Tridiagonal_Hermitian) |
| 5681 | 6868 retval = trisolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6869 else if (typ == MatrixType::Full || typ == MatrixType::Hermitian) |
| 5681 | 6870 retval = fsolve (mattype, b, err, rcond, sing_handler, true); |
| 5785 | 6871 else if (typ != MatrixType::Rectangular) |
| 5164 | 6872 { |
| 5681 | 6873 (*current_liboctave_error_handler) ("unknown matrix type"); |
| 5164 | 6874 return Matrix (); |
| 6875 } | |
| 5681 | 6876 |
| 6877 // Rectangular or one of the above solvers flags a singular matrix | |
| 5785 | 6878 if (singular_fallback && mattype.type (false) == MatrixType::Rectangular) |
| 5681 | 6879 { |
| 6880 rcond = 1.; | |
| 6881 #ifdef USE_QRSOLVE | |
| 6882 retval = qrsolve (*this, b, err); | |
| 6883 #else | |
| 6884 retval = dmsolve<Matrix, SparseMatrix, Matrix> (*this, b, err); | |
| 6885 #endif | |
| 6886 } | |
| 6887 | |
| 6888 return retval; | |
| 5164 | 6889 } |
| 6890 | |
| 6891 SparseMatrix | |
| 5785 | 6892 SparseMatrix::solve (MatrixType &mattype, const SparseMatrix& b) const |
| 5164 | 6893 { |
| 5275 | 6894 octave_idx_type info; |
| 5164 | 6895 double rcond; |
| 6896 return solve (mattype, b, info, rcond, 0); | |
| 6897 } | |
| 6898 | |
| 6899 SparseMatrix | |
|
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|
6900 SparseMatrix::solve (MatrixType &mattype, const SparseMatrix& b, |
|
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|
6901 octave_idx_type& info) const |
| 5164 | 6902 { |
| 6903 double rcond; | |
| 6904 return solve (mattype, b, info, rcond, 0); | |
| 6905 } | |
| 6906 | |
| 6907 SparseMatrix | |
| 5785 | 6908 SparseMatrix::solve (MatrixType &mattype, const SparseMatrix& b, |
|
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|
6909 octave_idx_type& info, double& rcond) const |
| 5164 | 6910 { |
| 6911 return solve (mattype, b, info, rcond, 0); | |
| 6912 } | |
| 6913 | |
| 6914 SparseMatrix | |
|
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|
6915 SparseMatrix::solve (MatrixType &mattype, const SparseMatrix& b, |
|
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|
6916 octave_idx_type& err, double& rcond, |
|
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|
6917 solve_singularity_handler sing_handler, |
|
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|
6918 bool singular_fallback) const |
| 5164 | 6919 { |
| 5681 | 6920 SparseMatrix retval; |
| 5322 | 6921 int typ = mattype.type (false); |
| 5164 | 6922 |
| 5785 | 6923 if (typ == MatrixType::Unknown) |
| 5164 | 6924 typ = mattype.type (*this); |
| 6925 | |
| 5785 | 6926 if (typ == MatrixType::Diagonal || typ == MatrixType::Permuted_Diagonal) |
| 5681 | 6927 retval = dsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6928 else if (typ == MatrixType::Upper || typ == MatrixType::Permuted_Upper) |
| 5681 | 6929 retval = utsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6930 else if (typ == MatrixType::Lower || typ == MatrixType::Permuted_Lower) |
| 5681 | 6931 retval = ltsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6932 else if (typ == MatrixType::Banded || typ == MatrixType::Banded_Hermitian) |
| 5681 | 6933 retval = bsolve (mattype, b, err, rcond, sing_handler, false); |
|
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6934 else if (typ == MatrixType::Tridiagonal || |
|
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|
6935 typ == MatrixType::Tridiagonal_Hermitian) |
| 5681 | 6936 retval = trisolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6937 else if (typ == MatrixType::Full || typ == MatrixType::Hermitian) |
| 5681 | 6938 retval = fsolve (mattype, b, err, rcond, sing_handler, true); |
| 5785 | 6939 else if (typ != MatrixType::Rectangular) |
| 5164 | 6940 { |
| 5681 | 6941 (*current_liboctave_error_handler) ("unknown matrix type"); |
| 5164 | 6942 return SparseMatrix (); |
| 6943 } | |
| 5681 | 6944 |
| 5785 | 6945 if (singular_fallback && mattype.type (false) == MatrixType::Rectangular) |
| 5681 | 6946 { |
| 6947 rcond = 1.; | |
| 6948 #ifdef USE_QRSOLVE | |
| 6949 retval = qrsolve (*this, b, err); | |
| 6950 #else | |
|
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|
6951 retval = dmsolve<SparseMatrix, SparseMatrix, SparseMatrix> |
|
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|
6952 (*this, b, err); |
| 5681 | 6953 #endif |
| 6954 } | |
| 6955 | |
| 6956 return retval; | |
| 5164 | 6957 } |
| 6958 | |
| 6959 ComplexMatrix | |
| 5785 | 6960 SparseMatrix::solve (MatrixType &mattype, const ComplexMatrix& b) const |
| 5164 | 6961 { |
| 5275 | 6962 octave_idx_type info; |
| 5164 | 6963 double rcond; |
| 6964 return solve (mattype, b, info, rcond, 0); | |
| 6965 } | |
| 6966 | |
| 6967 ComplexMatrix | |
|
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|
6968 SparseMatrix::solve (MatrixType &mattype, const ComplexMatrix& b, |
|
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|
6969 octave_idx_type& info) const |
| 5164 | 6970 { |
| 6971 double rcond; | |
| 6972 return solve (mattype, b, info, rcond, 0); | |
| 6973 } | |
| 6974 | |
| 6975 ComplexMatrix | |
|
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|
6976 SparseMatrix::solve (MatrixType &mattype, const ComplexMatrix& b, |
|
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|
6977 octave_idx_type& info, double& rcond) const |
| 5164 | 6978 { |
| 6979 return solve (mattype, b, info, rcond, 0); | |
| 6980 } | |
| 6981 | |
| 6982 ComplexMatrix | |
|
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6983 SparseMatrix::solve (MatrixType &mattype, const ComplexMatrix& b, |
|
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|
6984 octave_idx_type& err, double& rcond, |
|
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|
6985 solve_singularity_handler sing_handler, |
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|
6986 bool singular_fallback) const |
| 5164 | 6987 { |
| 5681 | 6988 ComplexMatrix retval; |
| 5322 | 6989 int typ = mattype.type (false); |
| 5164 | 6990 |
| 5785 | 6991 if (typ == MatrixType::Unknown) |
| 5164 | 6992 typ = mattype.type (*this); |
| 6993 | |
| 5785 | 6994 if (typ == MatrixType::Diagonal || typ == MatrixType::Permuted_Diagonal) |
| 5681 | 6995 retval = dsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6996 else if (typ == MatrixType::Upper || typ == MatrixType::Permuted_Upper) |
| 5681 | 6997 retval = utsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 6998 else if (typ == MatrixType::Lower || typ == MatrixType::Permuted_Lower) |
| 5681 | 6999 retval = ltsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 7000 else if (typ == MatrixType::Banded || typ == MatrixType::Banded_Hermitian) |
| 5681 | 7001 retval = bsolve (mattype, b, err, rcond, sing_handler, false); |
|
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7002 else if (typ == MatrixType::Tridiagonal || |
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7003 typ == MatrixType::Tridiagonal_Hermitian) |
| 5681 | 7004 retval = trisolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 7005 else if (typ == MatrixType::Full || typ == MatrixType::Hermitian) |
| 5681 | 7006 retval = fsolve (mattype, b, err, rcond, sing_handler, true); |
| 5785 | 7007 else if (typ != MatrixType::Rectangular) |
| 5164 | 7008 { |
| 5681 | 7009 (*current_liboctave_error_handler) ("unknown matrix type"); |
| 5164 | 7010 return ComplexMatrix (); |
| 7011 } | |
| 5681 | 7012 |
|
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7013 if (singular_fallback && mattype.type (false) == MatrixType::Rectangular) |
| 5681 | 7014 { |
| 7015 rcond = 1.; | |
| 7016 #ifdef USE_QRSOLVE | |
| 7017 retval = qrsolve (*this, b, err); | |
| 7018 #else | |
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7019 retval = dmsolve<ComplexMatrix, SparseMatrix, ComplexMatrix> |
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7020 (*this, b, err); |
| 5681 | 7021 #endif |
| 7022 } | |
| 7023 | |
| 7024 return retval; | |
| 5164 | 7025 } |
| 7026 | |
| 7027 SparseComplexMatrix | |
| 5785 | 7028 SparseMatrix::solve (MatrixType &mattype, const SparseComplexMatrix& b) const |
| 5164 | 7029 { |
| 5275 | 7030 octave_idx_type info; |
| 5164 | 7031 double rcond; |
| 7032 return solve (mattype, b, info, rcond, 0); | |
| 7033 } | |
| 7034 | |
| 7035 SparseComplexMatrix | |
|
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7036 SparseMatrix::solve (MatrixType &mattype, const SparseComplexMatrix& b, |
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7037 octave_idx_type& info) const |
| 5164 | 7038 { |
| 7039 double rcond; | |
| 7040 return solve (mattype, b, info, rcond, 0); | |
| 7041 } | |
| 7042 | |
| 7043 SparseComplexMatrix | |
| 5785 | 7044 SparseMatrix::solve (MatrixType &mattype, const SparseComplexMatrix& b, |
|
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7045 octave_idx_type& info, double& rcond) const |
| 5164 | 7046 { |
| 7047 return solve (mattype, b, info, rcond, 0); | |
| 7048 } | |
| 7049 | |
| 7050 SparseComplexMatrix | |
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7051 SparseMatrix::solve (MatrixType &mattype, const SparseComplexMatrix& b, |
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7052 octave_idx_type& err, double& rcond, |
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7053 solve_singularity_handler sing_handler, |
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7054 bool singular_fallback) const |
| 5164 | 7055 { |
| 5681 | 7056 SparseComplexMatrix retval; |
| 5322 | 7057 int typ = mattype.type (false); |
| 5164 | 7058 |
| 5785 | 7059 if (typ == MatrixType::Unknown) |
| 5164 | 7060 typ = mattype.type (*this); |
| 7061 | |
| 5785 | 7062 if (typ == MatrixType::Diagonal || typ == MatrixType::Permuted_Diagonal) |
| 5681 | 7063 retval = dsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 7064 else if (typ == MatrixType::Upper || typ == MatrixType::Permuted_Upper) |
| 5681 | 7065 retval = utsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 7066 else if (typ == MatrixType::Lower || typ == MatrixType::Permuted_Lower) |
| 5681 | 7067 retval = ltsolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 7068 else if (typ == MatrixType::Banded || typ == MatrixType::Banded_Hermitian) |
| 5681 | 7069 retval = bsolve (mattype, b, err, rcond, sing_handler, false); |
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7070 else if (typ == MatrixType::Tridiagonal || |
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7071 typ == MatrixType::Tridiagonal_Hermitian) |
| 5681 | 7072 retval = trisolve (mattype, b, err, rcond, sing_handler, false); |
| 5785 | 7073 else if (typ == MatrixType::Full || typ == MatrixType::Hermitian) |
| 5681 | 7074 retval = fsolve (mattype, b, err, rcond, sing_handler, true); |
| 5785 | 7075 else if (typ != MatrixType::Rectangular) |
| 5164 | 7076 { |
| 5681 | 7077 (*current_liboctave_error_handler) ("unknown matrix type"); |
| 5164 | 7078 return SparseComplexMatrix (); |
| 7079 } | |
| 5681 | 7080 |
|
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7081 if (singular_fallback && mattype.type (false) == MatrixType::Rectangular) |
| 5681 | 7082 { |
| 7083 rcond = 1.; | |
| 7084 #ifdef USE_QRSOLVE | |
| 7085 retval = qrsolve (*this, b, err); | |
| 7086 #else | |
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7087 retval = dmsolve<SparseComplexMatrix, SparseMatrix, SparseComplexMatrix> |
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7088 (*this, b, err); |
| 5681 | 7089 #endif |
| 7090 } | |
| 7091 | |
| 7092 return retval; | |
| 5164 | 7093 } |
| 7094 | |
| 7095 ColumnVector | |
| 5785 | 7096 SparseMatrix::solve (MatrixType &mattype, const ColumnVector& b) const |
| 5164 | 7097 { |
| 5275 | 7098 octave_idx_type info; double rcond; |
| 5164 | 7099 return solve (mattype, b, info, rcond); |
| 7100 } | |
| 7101 | |
| 7102 ColumnVector | |
|
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7103 SparseMatrix::solve (MatrixType &mattype, const ColumnVector& b, |
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7104 octave_idx_type& info) const |
| 5164 | 7105 { |
| 7106 double rcond; | |
| 7107 return solve (mattype, b, info, rcond); | |
| 7108 } | |
| 7109 | |
| 7110 ColumnVector | |
|
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7111 SparseMatrix::solve (MatrixType &mattype, const ColumnVector& b, |
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7112 octave_idx_type& info, double& rcond) const |
| 5164 | 7113 { |
| 7114 return solve (mattype, b, info, rcond, 0); | |
| 7115 } | |
| 7116 | |
| 7117 ColumnVector | |
|
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7118 SparseMatrix::solve (MatrixType &mattype, const ColumnVector& b, |
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7119 octave_idx_type& info, double& rcond, |
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7120 solve_singularity_handler sing_handler) const |
| 5164 | 7121 { |
| 7122 Matrix tmp (b); | |
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7123 return solve (mattype, tmp, info, rcond, |
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7124 sing_handler).column (static_cast<octave_idx_type> (0)); |
| 5164 | 7125 } |
| 7126 | |
| 7127 ComplexColumnVector | |
| 5785 | 7128 SparseMatrix::solve (MatrixType &mattype, const ComplexColumnVector& b) const |
| 5164 | 7129 { |
| 5275 | 7130 octave_idx_type info; |
| 5164 | 7131 double rcond; |
| 7132 return solve (mattype, b, info, rcond, 0); | |
| 7133 } | |
| 7134 | |
| 7135 ComplexColumnVector | |
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7136 SparseMatrix::solve (MatrixType &mattype, const ComplexColumnVector& b, |
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7137 octave_idx_type& info) const |
| 5164 | 7138 { |
| 7139 double rcond; | |
| 7140 return solve (mattype, b, info, rcond, 0); | |
| 7141 } | |
| 7142 | |
| 7143 ComplexColumnVector | |
|
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7144 SparseMatrix::solve (MatrixType &mattype, const ComplexColumnVector& b, |
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7145 octave_idx_type& info, |
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7146 double& rcond) const |
| 5164 | 7147 { |
| 7148 return solve (mattype, b, info, rcond, 0); | |
| 7149 } | |
| 7150 | |
| 7151 ComplexColumnVector | |
|
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7152 SparseMatrix::solve (MatrixType &mattype, const ComplexColumnVector& b, |
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7153 octave_idx_type& info, double& rcond, |
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7154 solve_singularity_handler sing_handler) const |
| 5164 | 7155 { |
| 7156 ComplexMatrix tmp (b); | |
|
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7157 return solve (mattype, tmp, info, rcond, |
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7158 sing_handler).column (static_cast<octave_idx_type> (0)); |
| 5164 | 7159 } |
| 7160 | |
| 7161 Matrix | |
| 7162 SparseMatrix::solve (const Matrix& b) const | |
| 7163 { | |
| 5275 | 7164 octave_idx_type info; |
| 5164 | 7165 double rcond; |
| 7166 return solve (b, info, rcond, 0); | |
| 7167 } | |
| 7168 | |
| 7169 Matrix | |
| 5275 | 7170 SparseMatrix::solve (const Matrix& b, octave_idx_type& info) const |
| 5164 | 7171 { |
| 7172 double rcond; | |
| 7173 return solve (b, info, rcond, 0); | |
| 7174 } | |
| 7175 | |
| 7176 Matrix | |
|
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7177 SparseMatrix::solve (const Matrix& b, octave_idx_type& info, |
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7178 double& rcond) const |
| 5164 | 7179 { |
| 7180 return solve (b, info, rcond, 0); | |
| 7181 } | |
| 7182 | |
| 7183 Matrix | |
|
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7184 SparseMatrix::solve (const Matrix& b, octave_idx_type& err, double& rcond, |
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7185 solve_singularity_handler sing_handler) const |
| 5164 | 7186 { |
| 5785 | 7187 MatrixType mattype (*this); |
| 5164 | 7188 return solve (mattype, b, err, rcond, sing_handler); |
| 7189 } | |
| 7190 | |
| 7191 SparseMatrix | |
| 7192 SparseMatrix::solve (const SparseMatrix& b) const | |
| 7193 { | |
| 5275 | 7194 octave_idx_type info; |
| 5164 | 7195 double rcond; |
| 7196 return solve (b, info, rcond, 0); | |
| 7197 } | |
| 7198 | |
| 7199 SparseMatrix | |
|
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7200 SparseMatrix::solve (const SparseMatrix& b, |
|
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7201 octave_idx_type& info) const |
| 5164 | 7202 { |
| 7203 double rcond; | |
| 7204 return solve (b, info, rcond, 0); | |
| 7205 } | |
| 7206 | |
| 7207 SparseMatrix | |
| 7208 SparseMatrix::solve (const SparseMatrix& b, | |
|
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7209 octave_idx_type& info, double& rcond) const |
| 5164 | 7210 { |
| 7211 return solve (b, info, rcond, 0); | |
| 7212 } | |
| 7213 | |
| 7214 SparseMatrix | |
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7215 SparseMatrix::solve (const SparseMatrix& b, octave_idx_type& err, double& rcond, |
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7216 solve_singularity_handler sing_handler) const |
| 5164 | 7217 { |
| 5785 | 7218 MatrixType mattype (*this); |
| 5164 | 7219 return solve (mattype, b, err, rcond, sing_handler); |
| 7220 } | |
| 7221 | |
| 7222 ComplexMatrix | |
|
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7223 SparseMatrix::solve (const ComplexMatrix& b, octave_idx_type& info) const |
| 5164 | 7224 { |
| 7225 double rcond; | |
| 7226 return solve (b, info, rcond, 0); | |
| 7227 } | |
| 7228 | |
| 7229 ComplexMatrix | |
|
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7230 SparseMatrix::solve (const ComplexMatrix& b, octave_idx_type& info, |
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7231 double& rcond) const |
| 5164 | 7232 { |
| 7233 return solve (b, info, rcond, 0); | |
| 7234 } | |
| 7235 | |
| 7236 ComplexMatrix | |
|
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7237 SparseMatrix::solve (const ComplexMatrix& b, octave_idx_type& err, |
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7238 double& rcond, |
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7239 solve_singularity_handler sing_handler) const |
| 5164 | 7240 { |
| 5785 | 7241 MatrixType mattype (*this); |
| 5164 | 7242 return solve (mattype, b, err, rcond, sing_handler); |
| 7243 } | |
| 7244 | |
| 7245 SparseComplexMatrix | |
| 7246 SparseMatrix::solve (const SparseComplexMatrix& b) const | |
| 7247 { | |
| 5275 | 7248 octave_idx_type info; |
| 5164 | 7249 double rcond; |
| 7250 return solve (b, info, rcond, 0); | |
| 7251 } | |
| 7252 | |
| 7253 SparseComplexMatrix | |
|
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7254 SparseMatrix::solve (const SparseComplexMatrix& b, octave_idx_type& info) const |
| 5164 | 7255 { |
| 7256 double rcond; | |
| 7257 return solve (b, info, rcond, 0); | |
| 7258 } | |
| 7259 | |
| 7260 SparseComplexMatrix | |
|
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7261 SparseMatrix::solve (const SparseComplexMatrix& b, octave_idx_type& info, |
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7262 double& rcond) const |
| 5164 | 7263 { |
| 7264 return solve (b, info, rcond, 0); | |
| 7265 } | |
| 7266 | |
| 7267 SparseComplexMatrix | |
|
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7268 SparseMatrix::solve (const SparseComplexMatrix& b, |
|
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|
7269 octave_idx_type& err, double& rcond, |
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7270 solve_singularity_handler sing_handler) const |
| 5164 | 7271 { |
| 5785 | 7272 MatrixType mattype (*this); |
| 5164 | 7273 return solve (mattype, b, err, rcond, sing_handler); |
| 7274 } | |
| 7275 | |
| 7276 ColumnVector | |
| 7277 SparseMatrix::solve (const ColumnVector& b) const | |
| 7278 { | |
| 5275 | 7279 octave_idx_type info; double rcond; |
| 5164 | 7280 return solve (b, info, rcond); |
| 7281 } | |
| 7282 | |
| 7283 ColumnVector | |
| 5275 | 7284 SparseMatrix::solve (const ColumnVector& b, octave_idx_type& info) const |
| 5164 | 7285 { |
| 7286 double rcond; | |
| 7287 return solve (b, info, rcond); | |
| 7288 } | |
| 7289 | |
| 7290 ColumnVector | |
|
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7291 SparseMatrix::solve (const ColumnVector& b, octave_idx_type& info, |
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diff
changeset
|
7292 double& rcond) const |
| 5164 | 7293 { |
| 7294 return solve (b, info, rcond, 0); | |
| 7295 } | |
| 7296 | |
| 7297 ColumnVector | |
|
17769
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Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7298 SparseMatrix::solve (const ColumnVector& b, octave_idx_type& info, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7299 double& rcond, |
|
49a5a4be04a1
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Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7300 solve_singularity_handler sing_handler) const |
| 5164 | 7301 { |
| 7302 Matrix tmp (b); | |
|
17769
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Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7303 return solve (tmp, info, rcond, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7304 sing_handler).column (static_cast<octave_idx_type> (0)); |
| 5164 | 7305 } |
| 7306 | |
| 7307 ComplexColumnVector | |
| 7308 SparseMatrix::solve (const ComplexColumnVector& b) const | |
| 7309 { | |
| 5275 | 7310 octave_idx_type info; |
| 5164 | 7311 double rcond; |
| 7312 return solve (b, info, rcond, 0); | |
| 7313 } | |
| 7314 | |
| 7315 ComplexColumnVector | |
| 5275 | 7316 SparseMatrix::solve (const ComplexColumnVector& b, octave_idx_type& info) const |
| 5164 | 7317 { |
| 7318 double rcond; | |
| 7319 return solve (b, info, rcond, 0); | |
| 7320 } | |
| 7321 | |
| 7322 ComplexColumnVector | |
|
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7323 SparseMatrix::solve (const ComplexColumnVector& b, octave_idx_type& info, |
|
10314
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
7324 double& rcond) const |
| 5164 | 7325 { |
| 7326 return solve (b, info, rcond, 0); | |
| 7327 } | |
| 7328 | |
| 7329 ComplexColumnVector | |
|
17769
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Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7330 SparseMatrix::solve (const ComplexColumnVector& b, octave_idx_type& info, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7331 double& rcond, |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7332 solve_singularity_handler sing_handler) const |
| 5164 | 7333 { |
| 7334 ComplexMatrix tmp (b); | |
| 5275 | 7335 return solve (tmp, info, rcond, sing_handler).column (static_cast<octave_idx_type> (0)); |
| 5164 | 7336 } |
| 7337 | |
| 7338 // other operations. | |
| 7339 | |
| 7340 bool | |
| 7341 SparseMatrix::any_element_is_negative (bool neg_zero) const | |
| 7342 { | |
| 5681 | 7343 octave_idx_type nel = nnz (); |
| 5164 | 7344 |
| 7345 if (neg_zero) | |
| 7346 { | |
| 5275 | 7347 for (octave_idx_type i = 0; i < nel; i++) |
|
10314
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
7348 if (lo_ieee_signbit (data (i))) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7349 return true; |
| 5164 | 7350 } |
| 7351 else | |
| 7352 { | |
| 5275 | 7353 for (octave_idx_type i = 0; i < nel; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7354 if (data (i) < 0) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7355 return true; |
| 5164 | 7356 } |
| 7357 | |
| 7358 return false; | |
| 7359 } | |
| 7360 | |
| 7361 bool | |
|
7922
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7362 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
|
7363 { |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7364 octave_idx_type nel = nnz (); |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7365 |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7366 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
|
7367 { |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7368 double val = data (i); |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7369 if (xisnan (val)) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7370 return true; |
|
7922
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7371 } |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7372 |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7373 return false; |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7374 } |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7375 |
|
935be827eaf8
error for NaN values in & and | expressions
John W. Eaton <jwe@octave.org>
parents:
7802
diff
changeset
|
7376 bool |
| 5164 | 7377 SparseMatrix::any_element_is_inf_or_nan (void) const |
| 7378 { | |
| 5681 | 7379 octave_idx_type nel = nnz (); |
| 5275 | 7380 |
| 7381 for (octave_idx_type i = 0; i < nel; i++) | |
| 5164 | 7382 { |
| 7383 double val = data (i); | |
| 7384 if (xisinf (val) || xisnan (val)) | |
|
10314
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untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7385 return true; |
| 5164 | 7386 } |
| 7387 | |
| 7388 return false; | |
| 7389 } | |
| 7390 | |
| 7391 bool | |
|
9852
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7392 SparseMatrix::any_element_not_one_or_zero (void) const |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7393 { |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7394 octave_idx_type nel = nnz (); |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7395 |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7396 for (octave_idx_type i = 0; i < nel; i++) |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7397 { |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7398 double val = data (i); |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7399 if (val != 0.0 && val != 1.0) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7400 return true; |
|
9852
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7401 } |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7402 |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7403 return false; |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7404 } |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7405 |
|
aabf7a8c2e57
implement sparse logical conversion
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
7406 bool |
| 6989 | 7407 SparseMatrix::all_elements_are_zero (void) const |
| 7408 { | |
| 7409 octave_idx_type nel = nnz (); | |
| 7410 | |
| 7411 for (octave_idx_type i = 0; i < nel; i++) | |
| 7412 if (data (i) != 0) | |
| 7413 return false; | |
| 7414 | |
| 7415 return true; | |
| 7416 } | |
| 7417 | |
| 7418 bool | |
| 5164 | 7419 SparseMatrix::all_elements_are_int_or_inf_or_nan (void) const |
| 7420 { | |
| 5681 | 7421 octave_idx_type nel = nnz (); |
| 5275 | 7422 |
| 7423 for (octave_idx_type i = 0; i < nel; i++) | |
| 5164 | 7424 { |
| 7425 double val = data (i); | |
| 7426 if (xisnan (val) || D_NINT (val) == val) | |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7427 continue; |
| 5164 | 7428 else |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7429 return false; |
| 5164 | 7430 } |
| 7431 | |
| 7432 return true; | |
| 7433 } | |
| 7434 | |
| 7435 // Return nonzero if any element of M is not an integer. Also extract | |
| 7436 // the largest and smallest values and return them in MAX_VAL and MIN_VAL. | |
| 7437 | |
| 7438 bool | |
| 7439 SparseMatrix::all_integers (double& max_val, double& min_val) const | |
| 7440 { | |
| 5681 | 7441 octave_idx_type nel = nnz (); |
| 5164 | 7442 |
| 7443 if (nel == 0) | |
| 7444 return false; | |
| 7445 | |
| 7446 max_val = data (0); | |
| 7447 min_val = data (0); | |
| 7448 | |
| 5275 | 7449 for (octave_idx_type i = 0; i < nel; i++) |
| 5164 | 7450 { |
| 7451 double val = data (i); | |
| 7452 | |
| 7453 if (val > max_val) | |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7454 max_val = val; |
| 5164 | 7455 |
| 7456 if (val < min_val) | |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7457 min_val = val; |
| 5164 | 7458 |
| 7459 if (D_NINT (val) != val) | |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7460 return false; |
| 5164 | 7461 } |
| 7462 | |
| 7463 return true; | |
| 7464 } | |
| 7465 | |
| 7466 bool | |
| 7467 SparseMatrix::too_large_for_float (void) const | |
| 7468 { | |
|
15212
4bbd3bbb8912
reduce code duplication in too_large_for_float array functions
John W. Eaton <jwe@octave.org>
parents:
15018
diff
changeset
|
7469 return test_any (xtoo_large_for_float); |
| 5164 | 7470 } |
| 7471 | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7472 SparseBoolMatrix |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7473 SparseMatrix::operator ! (void) const |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7474 { |
|
11130
7c573eb981eb
consistently give error for operator not applied to NaN values
John W. Eaton <jwe@octave.org>
parents:
10785
diff
changeset
|
7475 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
|
7476 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
|
7477 |
| 5275 | 7478 octave_idx_type nr = rows (); |
| 7479 octave_idx_type nc = cols (); | |
| 5681 | 7480 octave_idx_type nz1 = nnz (); |
| 5275 | 7481 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
|
7482 |
| 5164 | 7483 SparseBoolMatrix r (nr, nc, nz2); |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7484 |
| 5275 | 7485 octave_idx_type ii = 0; |
| 7486 octave_idx_type jj = 0; | |
| 5164 | 7487 r.cidx (0) = 0; |
| 5275 | 7488 for (octave_idx_type i = 0; i < nc; i++) |
| 5164 | 7489 { |
| 5275 | 7490 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
|
7491 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7492 if (jj < cidx (i+1) && ridx (jj) == j) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7493 jj++; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7494 else |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7495 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7496 r.data (ii) = true; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7497 r.ridx (ii++) = j; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7498 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7499 } |
| 5164 | 7500 r.cidx (i+1) = ii; |
| 7501 } | |
| 7502 | |
| 7503 return r; | |
| 7504 } | |
| 7505 | |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7506 // FIXME: Do these really belong here? Maybe they should be in a base class? |
| 5164 | 7507 |
| 7508 SparseBoolMatrix | |
| 7509 SparseMatrix::all (int dim) const | |
| 7510 { | |
| 7511 SPARSE_ALL_OP (dim); | |
| 7512 } | |
| 7513 | |
| 7514 SparseBoolMatrix | |
| 7515 SparseMatrix::any (int dim) const | |
| 7516 { | |
| 7517 SPARSE_ANY_OP (dim); | |
| 7518 } | |
| 7519 | |
| 7520 SparseMatrix | |
| 7521 SparseMatrix::cumprod (int dim) const | |
| 7522 { | |
| 7523 SPARSE_CUMPROD (SparseMatrix, double, cumprod); | |
| 7524 } | |
| 7525 | |
| 7526 SparseMatrix | |
| 7527 SparseMatrix::cumsum (int dim) const | |
| 7528 { | |
| 7529 SPARSE_CUMSUM (SparseMatrix, double, cumsum); | |
| 7530 } | |
| 7531 | |
| 7532 SparseMatrix | |
| 7533 SparseMatrix::prod (int dim) const | |
| 7534 { | |
|
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
|
7535 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
|
7536 return transpose (). prod (0). transpose (); |
| 7269 | 7537 else |
| 7538 { | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7539 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
|
7540 (cidx (j+1) - cidx (j) < nr ? 0.0 : 1.0), 1.0); |
| 7269 | 7541 } |
| 5164 | 7542 } |
| 7543 | |
| 7544 SparseMatrix | |
| 7545 SparseMatrix::sum (int dim) const | |
| 7546 { | |
| 7547 SPARSE_REDUCTION_OP (SparseMatrix, double, +=, 0.0, 0.0); | |
| 7548 } | |
| 7549 | |
| 7550 SparseMatrix | |
| 7551 SparseMatrix::sumsq (int dim) const | |
| 7552 { | |
| 7553 #define ROW_EXPR \ | |
| 7269 | 7554 double d = data (i); \ |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7555 tmp[ridx (i)] += d * d |
| 5164 | 7556 |
| 7557 #define COL_EXPR \ | |
| 7269 | 7558 double d = data (i); \ |
| 5164 | 7559 tmp[j] += d * d |
| 7560 | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11574
diff
changeset
|
7561 SPARSE_BASE_REDUCTION_OP (SparseMatrix, double, ROW_EXPR, COL_EXPR, |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
7562 0.0, 0.0); |
| 5164 | 7563 |
| 7564 #undef ROW_EXPR | |
| 7565 #undef COL_EXPR | |
| 7566 } | |
| 7567 | |
| 7568 SparseMatrix | |
| 7569 SparseMatrix::abs (void) const | |
| 7570 { | |
| 5681 | 7571 octave_idx_type nz = nnz (); |
| 5164 | 7572 |
| 7573 SparseMatrix retval (*this); | |
| 7574 | |
| 5275 | 7575 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
|
7576 retval.data (i) = fabs (retval.data (i)); |
| 5164 | 7577 |
| 7578 return retval; | |
| 7579 } | |
| 7580 | |
| 7581 SparseMatrix | |
| 5275 | 7582 SparseMatrix::diag (octave_idx_type k) const |
| 5164 | 7583 { |
|
7620
36594d5bbe13
Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents:
7602
diff
changeset
|
7584 return MSparse<double>::diag (k); |
| 5164 | 7585 } |
| 7586 | |
| 7587 Matrix | |
| 7588 SparseMatrix::matrix_value (void) const | |
| 7589 { | |
|
10431
5dd7a7bf4950
simplify sparse->full conversions in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents:
10421
diff
changeset
|
7590 return Sparse<double>::array_value (); |
| 5164 | 7591 } |
| 7592 | |
| 7593 std::ostream& | |
| 7594 operator << (std::ostream& os, const SparseMatrix& a) | |
| 7595 { | |
| 5275 | 7596 octave_idx_type nc = a.cols (); |
| 5164 | 7597 |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7598 // add one to the printed indices to go from |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7599 // zero-based to one-based arrays |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7600 for (octave_idx_type j = 0; j < nc; j++) |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7601 { |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7602 octave_quit (); |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7603 for (octave_idx_type i = a.cidx (j); i < a.cidx (j+1); i++) |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7604 { |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7605 os << a.ridx (i) + 1 << " " << j + 1 << " "; |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7606 octave_write_double (os, a.data (i)); |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7607 os << "\n"; |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7608 } |
|
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7609 } |
| 5164 | 7610 |
| 7611 return os; | |
| 7612 } | |
| 7613 | |
| 7614 std::istream& | |
| 7615 operator >> (std::istream& is, SparseMatrix& a) | |
| 7616 { | |
|
9469
c6edba80dfae
sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents:
9417
diff
changeset
|
7617 typedef SparseMatrix::element_type elt_type; |
|
c6edba80dfae
sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents:
9417
diff
changeset
|
7618 |
|
c6edba80dfae
sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents:
9417
diff
changeset
|
7619 return read_sparse_matrix<elt_type> (is, a, octave_read_value<double>); |
| 5164 | 7620 } |
| 7621 | |
| 7622 SparseMatrix | |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7623 SparseMatrix::squeeze (void) const |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7624 { |
|
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11574
diff
changeset
|
7625 return MSparse<double>::squeeze (); |
| 5164 | 7626 } |
| 7627 | |
| 7628 SparseMatrix | |
| 7629 SparseMatrix::reshape (const dim_vector& new_dims) const | |
| 7630 { | |
| 7631 return MSparse<double>::reshape (new_dims); | |
| 7632 } | |
| 7633 | |
| 7634 SparseMatrix | |
| 5275 | 7635 SparseMatrix::permute (const Array<octave_idx_type>& vec, bool inv) const |
| 5164 | 7636 { |
| 7637 return MSparse<double>::permute (vec, inv); | |
| 7638 } | |
| 7639 | |
| 7640 SparseMatrix | |
| 5275 | 7641 SparseMatrix::ipermute (const Array<octave_idx_type>& vec) const |
| 5164 | 7642 { |
| 7643 return MSparse<double>::ipermute (vec); | |
| 7644 } | |
| 7645 | |
| 7646 // matrix by matrix -> matrix operations | |
| 7647 | |
| 7648 SparseMatrix | |
| 7649 operator * (const SparseMatrix& m, const SparseMatrix& a) | |
| 7650 { | |
| 5681 | 7651 SPARSE_SPARSE_MUL (SparseMatrix, double, double); |
| 5164 | 7652 } |
| 7653 | |
| 5429 | 7654 Matrix |
| 7655 operator * (const Matrix& m, const SparseMatrix& a) | |
| 7656 { | |
| 5681 | 7657 FULL_SPARSE_MUL (Matrix, double, 0.); |
| 5429 | 7658 } |
| 7659 | |
| 7660 Matrix | |
|
7802
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7661 mul_trans (const Matrix& m, const SparseMatrix& a) |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7662 { |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7663 FULL_SPARSE_MUL_TRANS (Matrix, double, 0., ); |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7664 } |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7665 |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7666 Matrix |
| 5429 | 7667 operator * (const SparseMatrix& m, const Matrix& a) |
| 7668 { | |
| 5681 | 7669 SPARSE_FULL_MUL (Matrix, double, 0.); |
| 5429 | 7670 } |
| 7671 | |
|
7802
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7672 Matrix |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7673 trans_mul (const SparseMatrix& m, const Matrix& a) |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7674 { |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7675 SPARSE_FULL_TRANS_MUL (Matrix, double, 0., ); |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7676 } |
|
1a446f28ce68
implement optimized sparse-dense transposed multiplication
Jaroslav Hajek <highegg@gmail.com>
parents:
7776
diff
changeset
|
7677 |
|
8964
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7678 // 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
|
7679 |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7680 SparseMatrix |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7681 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
|
7682 { |
|
8967
5bbbf482909a
fix omissions adjusting JR's patches
Jaroslav Hajek <highegg@gmail.com>
parents:
8966
diff
changeset
|
7683 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
|
7684 } |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7685 |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7686 SparseMatrix |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7687 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
|
7688 { |
|
8967
5bbbf482909a
fix omissions adjusting JR's patches
Jaroslav Hajek <highegg@gmail.com>
parents:
8966
diff
changeset
|
7689 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
|
7690 } |
|
f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Jason Riedy <jason@acm.org>
parents:
8951
diff
changeset
|
7691 |
|
8966
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7692 SparseMatrix |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7693 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
|
7694 { |
|
8967
5bbbf482909a
fix omissions adjusting JR's patches
Jaroslav Hajek <highegg@gmail.com>
parents:
8966
diff
changeset
|
7695 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
|
7696 } |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7697 |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7698 SparseMatrix |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7699 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
|
7700 { |
|
8967
5bbbf482909a
fix omissions adjusting JR's patches
Jaroslav Hajek <highegg@gmail.com>
parents:
8966
diff
changeset
|
7701 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
|
7702 } |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7703 |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7704 SparseMatrix |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7705 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
|
7706 { |
|
8967
5bbbf482909a
fix omissions adjusting JR's patches
Jaroslav Hajek <highegg@gmail.com>
parents:
8966
diff
changeset
|
7707 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
|
7708 } |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7709 |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7710 SparseMatrix |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7711 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
|
7712 { |
|
8967
5bbbf482909a
fix omissions adjusting JR's patches
Jaroslav Hajek <highegg@gmail.com>
parents:
8966
diff
changeset
|
7713 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
|
7714 } |
|
1bba53c0a38d
Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag.
Jason Riedy <jason@acm.org>
parents:
8964
diff
changeset
|
7715 |
|
8968
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7716 // 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
|
7717 |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7718 SparseMatrix |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7719 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
|
7720 { |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7721 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
|
7722 } |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7723 |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7724 SparseMatrix |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7725 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
|
7726 { |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7727 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
|
7728 } |
|
91d53dc37f79
Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations.
Jason Riedy <jason@acm.org>
parents:
8967
diff
changeset
|
7729 |
|
17769
49a5a4be04a1
maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
7730 // FIXME: it would be nice to share code among the min/max functions below. |
| 5164 | 7731 |
| 7732 #define EMPTY_RETURN_CHECK(T) \ | |
| 7733 if (nr == 0 || nc == 0) \ | |
| 7734 return T (nr, nc); | |
| 7735 | |
| 7736 SparseMatrix | |
| 7737 min (double d, const SparseMatrix& m) | |
| 7738 { | |
| 7739 SparseMatrix result; | |
| 7740 | |
| 5275 | 7741 octave_idx_type nr = m.rows (); |
| 7742 octave_idx_type nc = m.columns (); | |
| 5164 | 7743 |
| 7744 EMPTY_RETURN_CHECK (SparseMatrix); | |
| 7745 | |
| 7746 // Count the number of non-zero elements | |
| 7747 if (d < 0.) | |
| 7748 { | |
| 7749 result = SparseMatrix (nr, nc, d); | |
| 5275 | 7750 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
|
7751 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
|
7752 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7753 double tmp = xmin (d, m.data (i)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7754 if (tmp != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7755 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7756 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
|
7757 result.xdata (idx) = tmp; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7758 result.xridx (idx) = m.ridx (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7759 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7760 } |
| 5164 | 7761 } |
| 7762 else | |
| 7763 { | |
| 5275 | 7764 octave_idx_type nel = 0; |
| 7765 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
|
7766 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
|
7767 if (xmin (d, m.data (i)) != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7768 nel++; |
| 5164 | 7769 |
| 7770 result = SparseMatrix (nr, nc, nel); | |
| 7771 | |
| 5275 | 7772 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
|
7773 result.xcidx (0) = 0; |
| 5275 | 7774 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
|
7775 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7776 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
|
7777 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7778 double tmp = xmin (d, m.data (i)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7779 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7780 if (tmp != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7781 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7782 result.xdata (ii) = tmp; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7783 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
|
7784 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7785 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7786 result.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7787 } |
| 5164 | 7788 } |
| 7789 | |
| 7790 return result; | |
| 7791 } | |
| 7792 | |
| 7793 SparseMatrix | |
| 7794 min (const SparseMatrix& m, double d) | |
| 7795 { | |
| 7796 return min (d, m); | |
| 7797 } | |
| 7798 | |
| 7799 SparseMatrix | |
| 7800 min (const SparseMatrix& a, const SparseMatrix& b) | |
| 7801 { | |
| 7802 SparseMatrix r; | |
| 7803 | |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7804 octave_idx_type a_nr = a.rows (); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7805 octave_idx_type a_nc = a.cols (); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7806 octave_idx_type b_nr = b.rows (); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7807 octave_idx_type b_nc = b.cols (); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7808 |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7809 if (a_nr == b_nr && a_nc == b_nc) |
| 5164 | 7810 { |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7811 r = SparseMatrix (a_nr, a_nc, (a.nnz () + b.nnz ())); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7812 |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7813 octave_idx_type jx = 0; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7814 r.cidx (0) = 0; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7815 for (octave_idx_type i = 0 ; i < a_nc ; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7816 { |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7817 octave_idx_type ja = a.cidx (i); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7818 octave_idx_type ja_max = a.cidx (i+1); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7819 bool ja_lt_max= ja < ja_max; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7820 |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7821 octave_idx_type jb = b.cidx (i); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7822 octave_idx_type jb_max = b.cidx (i+1); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7823 bool jb_lt_max = jb < jb_max; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7824 |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7825 while (ja_lt_max || jb_lt_max ) |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7826 { |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7827 octave_quit (); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7828 if ((! jb_lt_max) || |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7829 (ja_lt_max && (a.ridx (ja) < b.ridx (jb)))) |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7830 { |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7831 double tmp = xmin (a.data (ja), 0.); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7832 if (tmp != 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7833 { |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7834 r.ridx (jx) = a.ridx (ja); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7835 r.data (jx) = tmp; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7836 jx++; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7837 } |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7838 ja++; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7839 ja_lt_max= ja < ja_max; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7840 } |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7841 else if (( !ja_lt_max ) || |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7842 (jb_lt_max && (b.ridx (jb) < a.ridx (ja)) ) ) |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7843 { |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7844 double tmp = xmin (0., b.data (jb)); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7845 if (tmp != 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7846 { |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7847 r.ridx (jx) = b.ridx (jb); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7848 r.data (jx) = tmp; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7849 jx++; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7850 } |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7851 jb++; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7852 jb_lt_max= jb < jb_max; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7853 } |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7854 else |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7855 { |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7856 double tmp = xmin (a.data (ja), b.data (jb)); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7857 if (tmp != 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7858 { |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7859 r.data (jx) = tmp; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7860 r.ridx (jx) = a.ridx (ja); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7861 jx++; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7862 } |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7863 ja++; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7864 ja_lt_max= ja < ja_max; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7865 jb++; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7866 jb_lt_max= jb < jb_max; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7867 } |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7868 } |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7869 r.cidx (i+1) = jx; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7870 } |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7871 |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7872 r.maybe_compress (); |
| 5164 | 7873 } |
| 7874 else | |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7875 { |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7876 if (a_nr == 0 || a_nc == 0) |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7877 r.resize (a_nr, a_nc); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7878 else if (b_nr == 0 || b_nc == 0) |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7879 r.resize (b_nr, b_nc); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7880 else |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7881 gripe_nonconformant ("min", a_nr, a_nc, b_nr, b_nc); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7882 } |
| 5164 | 7883 |
| 7884 return r; | |
| 7885 } | |
| 7886 | |
| 7887 SparseMatrix | |
| 7888 max (double d, const SparseMatrix& m) | |
| 7889 { | |
| 7890 SparseMatrix result; | |
| 7891 | |
| 5275 | 7892 octave_idx_type nr = m.rows (); |
| 7893 octave_idx_type nc = m.columns (); | |
| 5164 | 7894 |
| 7895 EMPTY_RETURN_CHECK (SparseMatrix); | |
| 7896 | |
| 7897 // Count the number of non-zero elements | |
| 7898 if (d > 0.) | |
| 7899 { | |
| 7900 result = SparseMatrix (nr, nc, d); | |
| 5275 | 7901 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
|
7902 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
|
7903 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7904 double tmp = xmax (d, m.data (i)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7905 |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7906 if (tmp != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7907 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7908 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
|
7909 result.xdata (idx) = tmp; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7910 result.xridx (idx) = m.ridx (i); |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7911 } |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7912 } |
| 5164 | 7913 } |
| 7914 else | |
| 7915 { | |
| 5275 | 7916 octave_idx_type nel = 0; |
| 7917 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
|
7918 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
|
7919 if (xmax (d, m.data (i)) != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7920 nel++; |
| 5164 | 7921 |
| 7922 result = SparseMatrix (nr, nc, nel); | |
| 7923 | |
| 5275 | 7924 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
|
7925 result.xcidx (0) = 0; |
| 5275 | 7926 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
|
7927 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7928 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
|
7929 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7930 double tmp = xmax (d, m.data (i)); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7931 if (tmp != 0.) |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7932 { |
|
15018
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7933 result.xdata (ii) = tmp; |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7934 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
|
7935 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7936 } |
|
3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents:
14846
diff
changeset
|
7937 result.xcidx (j+1) = ii; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7938 } |
| 5164 | 7939 } |
| 7940 | |
| 7941 return result; | |
| 7942 } | |
| 7943 | |
| 7944 SparseMatrix | |
| 7945 max (const SparseMatrix& m, double d) | |
| 7946 { | |
| 7947 return max (d, m); | |
| 7948 } | |
| 7949 | |
| 7950 SparseMatrix | |
| 7951 max (const SparseMatrix& a, const SparseMatrix& b) | |
| 7952 { | |
| 7953 SparseMatrix r; | |
| 7954 | |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7955 octave_idx_type a_nr = a.rows (); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7956 octave_idx_type a_nc = a.cols (); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7957 octave_idx_type b_nr = b.rows (); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7958 octave_idx_type b_nc = b.cols (); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7959 |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7960 if (a_nr == b_nr && a_nc == b_nc) |
| 5164 | 7961 { |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7962 r = SparseMatrix (a_nr, a_nc, (a.nnz () + b.nnz ())); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7963 |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7964 octave_idx_type jx = 0; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7965 r.cidx (0) = 0; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7966 for (octave_idx_type i = 0 ; i < a_nc ; i++) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7967 { |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7968 octave_idx_type ja = a.cidx (i); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7969 octave_idx_type ja_max = a.cidx (i+1); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7970 bool ja_lt_max= ja < ja_max; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7971 |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7972 octave_idx_type jb = b.cidx (i); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7973 octave_idx_type jb_max = b.cidx (i+1); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7974 bool jb_lt_max = jb < jb_max; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7975 |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7976 while (ja_lt_max || jb_lt_max ) |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7977 { |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7978 octave_quit (); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7979 if ((! jb_lt_max) || |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7980 (ja_lt_max && (a.ridx (ja) < b.ridx (jb)))) |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7981 { |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7982 double tmp = xmax (a.data (ja), 0.); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7983 if (tmp != 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7984 { |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7985 r.ridx (jx) = a.ridx (ja); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7986 r.data (jx) = tmp; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7987 jx++; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7988 } |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7989 ja++; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7990 ja_lt_max= ja < ja_max; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7991 } |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7992 else if (( !ja_lt_max ) || |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7993 (jb_lt_max && (b.ridx (jb) < a.ridx (ja)) ) ) |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7994 { |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7995 double tmp = xmax (0., b.data (jb)); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7996 if (tmp != 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
7997 { |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7998 r.ridx (jx) = b.ridx (jb); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
7999 r.data (jx) = tmp; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8000 jx++; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
8001 } |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8002 jb++; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8003 jb_lt_max= jb < jb_max; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8004 } |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8005 else |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8006 { |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8007 double tmp = xmax (a.data (ja), b.data (jb)); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8008 if (tmp != 0.) |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
8009 { |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8010 r.data (jx) = tmp; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8011 r.ridx (jx) = a.ridx (ja); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8012 jx++; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
8013 } |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8014 ja++; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8015 ja_lt_max= ja < ja_max; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8016 jb++; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8017 jb_lt_max= jb < jb_max; |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8018 } |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8019 } |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8020 r.cidx (i+1) = jx; |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
8021 } |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8022 |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8023 r.maybe_compress (); |
| 5164 | 8024 } |
| 8025 else | |
|
18080
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8026 { |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8027 if (a_nr == 0 || a_nc == 0) |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8028 r.resize (a_nr, a_nc); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8029 else if (b_nr == 0 || b_nc == 0) |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8030 r.resize (b_nr, b_nc); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8031 else |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8032 gripe_nonconformant ("max", a_nr, a_nc, b_nr, b_nc); |
|
35464baa7d99
Overhaul max/min implementations for Sparse matrices to fix bug #40743.
Rik <rik@octave.org>
parents:
17812
diff
changeset
|
8033 } |
| 5164 | 8034 |
| 8035 return r; | |
| 8036 } | |
| 8037 | |
| 8038 SPARSE_SMS_CMP_OPS (SparseMatrix, 0.0, , double, 0.0, ) | |
| 8039 SPARSE_SMS_BOOL_OPS (SparseMatrix, double, 0.0) | |
| 8040 | |
| 8041 SPARSE_SSM_CMP_OPS (double, 0.0, , SparseMatrix, 0.0, ) | |
| 8042 SPARSE_SSM_BOOL_OPS (double, SparseMatrix, 0.0) | |
| 8043 | |
| 8044 SPARSE_SMSM_CMP_OPS (SparseMatrix, 0.0, , SparseMatrix, 0.0, ) | |
| 8045 SPARSE_SMSM_BOOL_OPS (SparseMatrix, SparseMatrix, 0.0) |