Mercurial > octave
annotate liboctave/numeric/dbleSCHUR.cc @ 21202:f7121e111991
maint: indent #ifdef blocks in liboctave and src directories.
* Array-C.cc, Array-b.cc, Array-ch.cc, Array-d.cc, Array-f.cc, Array-fC.cc,
Array-i.cc, Array-idx-vec.cc, Array-s.cc, Array-str.cc, Array-util.cc,
Array-voidp.cc, Array.cc, CColVector.cc, CDiagMatrix.cc, CMatrix.cc,
CNDArray.cc, CRowVector.cc, CSparse.cc, CSparse.h, DiagArray2.cc, MArray-C.cc,
MArray-d.cc, MArray-f.cc, MArray-fC.cc, MArray-i.cc, MArray-s.cc, MArray.cc,
MDiagArray2.cc, MSparse-C.cc, MSparse-d.cc, MSparse.h, MatrixType.cc,
PermMatrix.cc, Range.cc, Sparse-C.cc, Sparse-b.cc, Sparse-d.cc, Sparse.cc,
boolMatrix.cc, boolNDArray.cc, boolSparse.cc, chMatrix.cc, chNDArray.cc,
dColVector.cc, dDiagMatrix.cc, dMatrix.cc, dNDArray.cc, dRowVector.cc,
dSparse.cc, dSparse.h, dim-vector.cc, fCColVector.cc, fCDiagMatrix.cc,
fCMatrix.cc, fCNDArray.cc, fCRowVector.cc, fColVector.cc, fDiagMatrix.cc,
fMatrix.cc, fNDArray.cc, fRowVector.cc, idx-vector.cc, int16NDArray.cc,
int32NDArray.cc, int64NDArray.cc, int8NDArray.cc, intNDArray.cc,
uint16NDArray.cc, uint32NDArray.cc, uint64NDArray.cc, uint8NDArray.cc,
blaswrap.c, cquit.c, f77-extern.cc, f77-fcn.c, f77-fcn.h, lo-error.c, quit.cc,
quit.h, CmplxAEPBAL.cc, CmplxCHOL.cc, CmplxGEPBAL.cc, CmplxHESS.cc, CmplxLU.cc,
CmplxQR.cc, CmplxQRP.cc, CmplxSCHUR.cc, CmplxSVD.cc, CollocWt.cc, DASPK.cc,
DASRT.cc, DASSL.cc, EIG.cc, LSODE.cc, ODES.cc, Quad.cc, base-lu.cc, base-qr.cc,
dbleAEPBAL.cc, dbleCHOL.cc, dbleGEPBAL.cc, dbleHESS.cc, dbleLU.cc, dbleQR.cc,
dbleQRP.cc, dbleSCHUR.cc, dbleSVD.cc, eigs-base.cc, fCmplxAEPBAL.cc,
fCmplxCHOL.cc, fCmplxGEPBAL.cc, fCmplxHESS.cc, fCmplxLU.cc, fCmplxQR.cc,
fCmplxQRP.cc, fCmplxSCHUR.cc, fCmplxSVD.cc, fEIG.cc, floatAEPBAL.cc,
floatCHOL.cc, floatGEPBAL.cc, floatHESS.cc, floatLU.cc, floatQR.cc,
floatQRP.cc, floatSCHUR.cc, floatSVD.cc, lo-mappers.cc, lo-specfun.cc,
oct-convn.cc, oct-fftw.cc, oct-fftw.h, oct-norm.cc, oct-rand.cc,
oct-spparms.cc, randgamma.c, randmtzig.c, randpoisson.c, sparse-chol.cc,
sparse-dmsolve.cc, sparse-lu.cc, sparse-qr.cc, mx-defs.h, dir-ops.cc,
file-ops.cc, file-stat.cc, lo-sysdep.cc, mach-info.cc, oct-env.cc,
oct-group.cc, oct-openmp.h, oct-passwd.cc, oct-syscalls.cc, oct-time.cc,
oct-uname.cc, pathlen.h, sysdir.h, syswait.h, cmd-edit.cc, cmd-hist.cc,
data-conv.cc, f2c-main.c, glob-match.cc, lo-array-errwarn.cc,
lo-array-gripes.cc, lo-cutils.c, lo-cutils.h, lo-ieee.cc, lo-math.h,
lo-regexp.cc, lo-utils.cc, oct-base64.cc, oct-glob.cc, oct-inttypes.cc,
oct-inttypes.h, oct-locbuf.cc, oct-mutex.cc, oct-refcount.h, oct-rl-edit.c,
oct-rl-hist.c, oct-shlib.cc, oct-sort.cc, pathsearch.cc, singleton-cleanup.cc,
sparse-sort.cc, sparse-util.cc, statdefs.h, str-vec.cc, unwind-prot.cc,
url-transfer.cc, display-available.h, main-cli.cc, main-gui.cc, main.in.cc,
mkoctfile.in.cc, octave-config.in.cc, shared-fcns.h:
indent #ifdef blocks in liboctave and src directories.
| author | Rik <rik@octave.org> |
|---|---|
| date | Sat, 06 Feb 2016 06:40:13 -0800 |
| parents | 7cac4e7458f2 |
| children |
| rev | line source |
|---|---|
| 457 | 1 /* |
| 2 | |
|
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3 Copyright (C) 1994-2015 John W. Eaton |
| 457 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 457 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 457 | 20 |
| 21 */ | |
| 22 | |
| 23 #ifdef HAVE_CONFIG_H | |
|
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24 # include <config.h> |
| 457 | 25 #endif |
| 26 | |
| 3503 | 27 #include <iostream> |
| 1631 | 28 |
| 457 | 29 #include "dbleSCHUR.h" |
| 1847 | 30 #include "f77-fcn.h" |
| 457 | 31 #include "lo-error.h" |
| 32 | |
| 33 extern "C" | |
| 34 { | |
| 4552 | 35 F77_RET_T |
| 36 F77_FUNC (dgeesx, DGEESX) (F77_CONST_CHAR_ARG_DECL, | |
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37 F77_CONST_CHAR_ARG_DECL, |
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38 SCHUR::select_function, |
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39 F77_CONST_CHAR_ARG_DECL, |
| 11495 | 40 const octave_idx_type&, double*, |
| 41 const octave_idx_type&, octave_idx_type&, | |
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42 double*, double*, double*, const octave_idx_type&, |
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43 double&, double&, double*, const octave_idx_type&, |
| 11495 | 44 octave_idx_type*, const octave_idx_type&, |
| 45 octave_idx_type*, octave_idx_type& | |
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46 F77_CHAR_ARG_LEN_DECL |
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47 F77_CHAR_ARG_LEN_DECL |
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48 F77_CHAR_ARG_LEN_DECL); |
| 457 | 49 } |
| 50 | |
| 5275 | 51 static octave_idx_type |
| 1486 | 52 select_ana (const double& a, const double&) |
| 457 | 53 { |
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54 return (a < 0.0); |
| 457 | 55 } |
| 56 | |
| 5275 | 57 static octave_idx_type |
| 1251 | 58 select_dig (const double& a, const double& b) |
| 457 | 59 { |
| 1251 | 60 return (hypot (a, b) < 1.0); |
| 457 | 61 } |
| 62 | |
| 5275 | 63 octave_idx_type |
| 5008 | 64 SCHUR::init (const Matrix& a, const std::string& ord, bool calc_unitary) |
| 457 | 65 { |
| 5275 | 66 octave_idx_type a_nr = a.rows (); |
| 67 octave_idx_type a_nc = a.cols (); | |
| 1929 | 68 |
| 457 | 69 if (a_nr != a_nc) |
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70 (*current_liboctave_error_handler) ("SCHUR requires square matrix"); |
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71 |
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72 if (a_nr == 0) |
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73 { |
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74 schur_mat.clear (); |
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75 unitary_mat.clear (); |
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76 return 0; |
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77 } |
| 457 | 78 |
| 3334 | 79 // Workspace requirements may need to be fixed if any of the |
| 80 // following change. | |
| 81 | |
| 5008 | 82 char jobvs; |
| 1930 | 83 char sense = 'N'; |
| 84 char sort = 'N'; | |
| 457 | 85 |
| 5008 | 86 if (calc_unitary) |
| 87 jobvs = 'V'; | |
| 88 else | |
| 89 jobvs = 'N'; | |
| 90 | |
| 1756 | 91 char ord_char = ord.empty () ? 'U' : ord[0]; |
| 92 | |
| 93 if (ord_char == 'A' || ord_char == 'D' || ord_char == 'a' || ord_char == 'd') | |
| 1930 | 94 sort = 'S'; |
| 457 | 95 |
| 1929 | 96 if (ord_char == 'A' || ord_char == 'a') |
| 97 selector = select_ana; | |
| 98 else if (ord_char == 'D' || ord_char == 'd') | |
| 99 selector = select_dig; | |
| 1930 | 100 else |
| 101 selector = 0; | |
| 457 | 102 |
| 5275 | 103 octave_idx_type n = a_nc; |
| 104 octave_idx_type lwork = 8 * n; | |
| 105 octave_idx_type liwork = 1; | |
| 106 octave_idx_type info; | |
| 107 octave_idx_type sdim; | |
| 457 | 108 double rconde; |
| 109 double rcondv; | |
| 110 | |
| 1929 | 111 schur_mat = a; |
| 5008 | 112 |
| 113 if (calc_unitary) | |
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114 unitary_mat.clear (n, n); |
| 1929 | 115 |
| 116 double *s = schur_mat.fortran_vec (); | |
| 117 double *q = unitary_mat.fortran_vec (); | |
| 457 | 118 |
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119 Array<double> wr (dim_vector (n, 1)); |
| 1929 | 120 double *pwr = wr.fortran_vec (); |
| 121 | |
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122 Array<double> wi (dim_vector (n, 1)); |
| 1929 | 123 double *pwi = wi.fortran_vec (); |
| 124 | |
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125 Array<double> work (dim_vector (lwork, 1)); |
| 1929 | 126 double *pwork = work.fortran_vec (); |
| 457 | 127 |
| 3334 | 128 // BWORK is not referenced for the non-ordered Schur routine. |
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129 octave_idx_type ntmp = (ord_char == 'N' || ord_char == 'n') ? 0 : n; |
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130 Array<octave_idx_type> bwork (dim_vector (ntmp, 1)); |
| 5275 | 131 octave_idx_type *pbwork = bwork.fortran_vec (); |
| 1929 | 132 |
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133 Array<octave_idx_type> iwork (dim_vector (liwork, 1)); |
| 5275 | 134 octave_idx_type *piwork = iwork.fortran_vec (); |
| 1929 | 135 |
| 4552 | 136 F77_XFCN (dgeesx, DGEESX, (F77_CONST_CHAR_ARG2 (&jobvs, 1), |
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137 F77_CONST_CHAR_ARG2 (&sort, 1), |
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138 selector, |
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139 F77_CONST_CHAR_ARG2 (&sense, 1), |
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140 n, s, n, sdim, pwr, pwi, q, n, rconde, rcondv, |
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141 pwork, lwork, piwork, liwork, pbwork, info |
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142 F77_CHAR_ARG_LEN (1) |
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143 F77_CHAR_ARG_LEN (1) |
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144 F77_CHAR_ARG_LEN (1))); |
| 457 | 145 |
| 146 return info; | |
| 147 } | |
| 148 | |
| 3504 | 149 std::ostream& |
| 150 operator << (std::ostream& os, const SCHUR& a) | |
| 457 | 151 { |
| 152 os << a.schur_matrix () << "\n"; | |
| 153 os << a.unitary_matrix () << "\n"; | |
| 154 | |
| 155 return os; | |
| 156 } | |
| 10822 | 157 |
| 158 SCHUR::SCHUR (const Matrix& s, const Matrix& u) | |
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159 : schur_mat (s), unitary_mat (u), selector (0) |
| 10822 | 160 { |
| 161 octave_idx_type n = s.rows (); | |
| 162 if (s.columns () != n || u.rows () != n || u.columns () != n) | |
| 163 (*current_liboctave_error_handler) | |
| 164 ("schur: inconsistent matrix dimensions"); | |
| 165 } | |
| 166 |