Mercurial > octave
annotate liboctave/numeric/fCmplxSCHUR.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> |
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date | Sat, 06 Feb 2016 06:40:13 -0800 |
parents | 7cac4e7458f2 |
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1 /* |
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2 |
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3 Copyright (C) 1994-2015 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 3 of the License, or (at your |
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10 option) any later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, see |
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19 <http://www.gnu.org/licenses/>. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 # include <config.h> |
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25 #endif |
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26 |
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27 #include "fCmplxSCHUR.h" |
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28 #include "f77-fcn.h" |
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29 #include "lo-error.h" |
10822 | 30 #include "oct-locbuf.h" |
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31 |
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32 extern "C" |
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33 { |
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34 F77_RET_T |
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35 F77_FUNC (cgeesx, CGEESX) (F77_CONST_CHAR_ARG_DECL, |
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36 F77_CONST_CHAR_ARG_DECL, |
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37 FloatComplexSCHUR::select_function, |
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38 F77_CONST_CHAR_ARG_DECL, |
11495 | 39 const octave_idx_type&, FloatComplex*, |
40 const octave_idx_type&, octave_idx_type&, | |
41 FloatComplex*, FloatComplex*, | |
42 const octave_idx_type&, float&, float&, | |
43 FloatComplex*, const octave_idx_type&, | |
44 float*, octave_idx_type*, octave_idx_type& | |
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45 F77_CHAR_ARG_LEN_DECL |
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46 F77_CHAR_ARG_LEN_DECL |
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47 F77_CHAR_ARG_LEN_DECL); |
10822 | 48 F77_RET_T |
11495 | 49 F77_FUNC (crsf2csf, CRSF2CSF) (const octave_idx_type&, FloatComplex *, |
50 FloatComplex *, float *, float *); | |
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51 } |
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52 |
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53 static octave_idx_type |
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54 select_ana (const FloatComplex& a) |
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55 { |
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56 return a.real () < 0.0; |
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57 } |
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58 |
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59 static octave_idx_type |
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60 select_dig (const FloatComplex& a) |
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61 { |
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62 return (abs (a) < 1.0); |
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63 } |
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64 |
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65 octave_idx_type |
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66 FloatComplexSCHUR::init (const FloatComplexMatrix& a, const std::string& ord, |
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67 bool calc_unitary) |
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68 { |
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69 octave_idx_type a_nr = a.rows (); |
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70 octave_idx_type a_nc = a.cols (); |
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71 |
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72 if (a_nr != a_nc) |
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73 (*current_liboctave_error_handler) |
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74 ("FloatComplexSCHUR requires square matrix"); |
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75 |
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76 if (a_nr == 0) |
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77 { |
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78 schur_mat.clear (); |
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79 unitary_mat.clear (); |
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80 return 0; |
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81 } |
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82 |
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83 // Workspace requirements may need to be fixed if any of the |
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84 // following change. |
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85 |
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86 char jobvs; |
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87 char sense = 'N'; |
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88 char sort = 'N'; |
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89 |
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90 if (calc_unitary) |
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91 jobvs = 'V'; |
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92 else |
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93 jobvs = 'N'; |
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94 |
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95 char ord_char = ord.empty () ? 'U' : ord[0]; |
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96 |
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97 if (ord_char == 'A' || ord_char == 'D' || ord_char == 'a' || ord_char == 'd') |
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98 sort = 'S'; |
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99 |
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100 if (ord_char == 'A' || ord_char == 'a') |
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101 selector = select_ana; |
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102 else if (ord_char == 'D' || ord_char == 'd') |
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103 selector = select_dig; |
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104 else |
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105 selector = 0; |
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106 |
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107 octave_idx_type n = a_nc; |
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108 octave_idx_type lwork = 8 * n; |
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109 octave_idx_type info; |
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110 octave_idx_type sdim; |
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111 float rconde; |
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112 float rcondv; |
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113 |
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114 schur_mat = a; |
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115 if (calc_unitary) |
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116 unitary_mat.clear (n, n); |
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117 |
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118 FloatComplex *s = schur_mat.fortran_vec (); |
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119 FloatComplex *q = unitary_mat.fortran_vec (); |
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120 |
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121 Array<float> rwork (dim_vector (n, 1)); |
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122 float *prwork = rwork.fortran_vec (); |
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123 |
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124 Array<FloatComplex> w (dim_vector (n, 1)); |
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125 FloatComplex *pw = w.fortran_vec (); |
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126 |
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127 Array<FloatComplex> work (dim_vector (lwork, 1)); |
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128 FloatComplex *pwork = work.fortran_vec (); |
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129 |
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130 // BWORK is not referenced for non-ordered Schur. |
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131 octave_idx_type ntmp = (ord_char == 'N' || ord_char == 'n') ? 0 : n; |
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132 Array<octave_idx_type> bwork (dim_vector (ntmp, 1)); |
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133 octave_idx_type *pbwork = bwork.fortran_vec (); |
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134 |
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135 F77_XFCN (cgeesx, CGEESX, (F77_CONST_CHAR_ARG2 (&jobvs, 1), |
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136 F77_CONST_CHAR_ARG2 (&sort, 1), |
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137 selector, |
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138 F77_CONST_CHAR_ARG2 (&sense, 1), |
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139 n, s, n, sdim, pw, q, n, rconde, rcondv, |
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140 pwork, lwork, prwork, pbwork, info |
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141 F77_CHAR_ARG_LEN (1) |
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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 |
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145 return info; |
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146 } |
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148 FloatComplexSCHUR::FloatComplexSCHUR (const FloatComplexMatrix& s, |
10822 | 149 const FloatComplexMatrix& u) |
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150 : schur_mat (s), unitary_mat (u), selector (0) |
10822 | 151 { |
152 octave_idx_type n = s.rows (); | |
153 if (s.columns () != n || u.rows () != n || u.columns () != n) | |
154 (*current_liboctave_error_handler) | |
155 ("schur: inconsistent matrix dimensions"); | |
156 } | |
157 | |
158 FloatComplexSCHUR::FloatComplexSCHUR (const FloatSCHUR& s) | |
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159 : schur_mat (s.schur_matrix ()), unitary_mat (s.unitary_matrix ()), |
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160 selector (0) |
10822 | 161 { |
162 octave_idx_type n = schur_mat.rows (); | |
163 if (n > 0) | |
164 { | |
165 OCTAVE_LOCAL_BUFFER (float, c, n-1); | |
166 OCTAVE_LOCAL_BUFFER (float, sx, n-1); | |
167 | |
168 F77_XFCN (crsf2csf, CRSF2CSF, (n, schur_mat.fortran_vec (), | |
169 unitary_mat.fortran_vec (), c, sx)); | |
170 } | |
171 } |