Mercurial > hg > octave-nkf
annotate liboctave/SparsedbleCHOL.cc @ 15018:3d8ace26c5b4
maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
* Array-util.cc, Array.cc, Array.h, CMatrix.cc, CNDArray.cc, CSparse.cc,
CmplxQR.cc, CollocWt.cc, DASPK.cc, DASRT.cc, DASSL.cc, EIG.cc, LSODE.cc,
MSparse.cc, MatrixType.cc, Sparse-op-defs.h, Sparse-perm-op-defs.h, Sparse.cc,
Sparse.h, SparseCmplxCHOL.cc, SparseCmplxLU.cc, SparseCmplxQR.cc, SparseQR.cc,
SparsedbleCHOL.cc, SparsedbleLU.cc, boolSparse.cc, cmd-hist.cc, dDiagMatrix.cc,
dMatrix.cc, dNDArray.cc, dSparse.cc, data-conv.cc, dbleQR.cc, dbleSVD.cc,
dim-vector.cc, eigs-base.cc, f2c-main.c, fCMatrix.cc, fCNDArray.cc,
fCmplxQR.cc, fEIG.cc, fMatrix.cc, fNDArray.cc, floatQR.cc, floatSVD.cc,
idx-vector.cc, kpse.cc, lo-specfun.cc, mx-inlines.cc, mx-op-defs.h,
oct-alloc.cc, oct-binmap.h, oct-fftw.cc, oct-group.h, oct-inttypes.cc,
oct-inttypes.h, oct-locbuf.cc, oct-md5.cc, oct-rand.cc, oct-sort.cc,
oct-syscalls.cc, randgamma.c, randmtzig.c, randpoisson.c, sparse-base-chol.cc,
sparse-base-lu.cc, sparse-dmsolve.cc, str-vec.cc, str-vec.h, tempnam.c,
tempname.c: Use Octave coding conventions for cuddled parentheses in liboctave/.
| author | Rik <rik@octave.org> |
|---|---|
| date | Thu, 26 Jul 2012 08:13:22 -0700 |
| parents | 460a3c6d8bf1 |
| children |
| rev | line source |
|---|---|
| 5506 | 1 /* |
| 2 | |
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3 Copyright (C) 2005-2012 David Bateman |
| 11523 | 4 Copyright (C) 1998-2005 Andy Adler |
| 7016 | 5 |
| 6 This file is part of Octave. | |
| 5506 | 7 |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 5506 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 5506 | 21 |
| 22 */ | |
| 23 | |
| 24 #ifdef HAVE_CONFIG_H | |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
| 28 #include "SparsedbleCHOL.h" | |
| 29 | |
| 30 // Instantiate the base CHOL class for the type we need | |
| 31 #define OCTAVE_CHOLMOD_TYPE CHOLMOD_REAL | |
| 32 #include "sparse-base-chol.h" | |
| 33 #include "sparse-base-chol.cc" | |
| 34 template class sparse_base_chol <SparseMatrix, double, SparseMatrix>; | |
| 35 | |
| 36 // Compute the inverse of a matrix using the Cholesky factorization. | |
| 37 SparseMatrix | |
| 38 chol2inv (const SparseMatrix& r) | |
| 39 { | |
| 40 octave_idx_type r_nr = r.rows (); | |
| 41 octave_idx_type r_nc = r.cols (); | |
| 42 SparseMatrix retval; | |
| 43 | |
| 44 if (r_nr == r_nc) | |
| 45 { | |
| 5785 | 46 MatrixType mattype (r); |
| 5506 | 47 int typ = mattype.type (false); |
| 48 double rcond; | |
| 49 octave_idx_type info; | |
| 50 SparseMatrix rinv; | |
| 51 | |
| 5785 | 52 if (typ == MatrixType::Upper) |
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53 { |
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54 rinv = r.inverse (mattype, info, rcond, true, false); |
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55 retval = rinv.transpose () * rinv; |
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56 } |
| 5785 | 57 else if (typ == MatrixType::Lower) |
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58 { |
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parents:
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59 rinv = r.transpose ().inverse (mattype, info, rcond, true, false); |
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60 retval = rinv.transpose () * rinv; |
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61 } |
| 5506 | 62 else |
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63 (*current_liboctave_error_handler) |
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64 ("spchol2inv requires triangular matrix"); |
| 5506 | 65 } |
| 66 else | |
| 67 (*current_liboctave_error_handler) ("spchol2inv requires square matrix"); | |
| 68 | |
| 69 return retval; | |
| 70 } |