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annotate liboctave/numeric/gsvd.cc @ 23475:d691ed308237

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maint: Clean up #includes in liboctave/numeric directory. * build-aux/mk-opts.pl: Change Perl to generate "" around local include libraries rather than <>. Include "lo-math.h" rather than <cmath>. * CollocWt.cc, DAERTFunc.h, DASPK.cc, DASPK.h, DASRT.cc, DASRT.h, DASSL.cc, DASSL.h, DET.h, EIG.cc, EIG.h, LSODE.cc, LSODE.h, ODE.h, ODES.cc, ODESFunc.h, Quad.cc, aepbalance.cc, base-de.h, base-min.h, bsxfun-decl.h, bsxfun-defs.cc, bsxfun.h, chol.cc, eigs-base.cc, fEIG.cc, fEIG.h, gepbalance.cc, gsvd.cc, hess.cc, lo-blas-proto.h, lo-lapack-proto.h, lo-mappers.cc, lo-mappers.h, lo-qrupdate-proto.h, lo-slatec-proto.h, lo-specfun.cc, lo-specfun.h, lu.cc, lu.h, oct-convn.cc, oct-convn.h, oct-fftw.cc, oct-fftw.h, oct-norm.cc, oct-rand.cc, oct-rand.h, oct-spparms.cc, oct-spparms.h, qr.cc, qr.h, qrp.cc, randgamma.cc, randpoisson.cc, schur.cc, schur.h, sparse-chol.cc, sparse-chol.h, sparse-dmsolve.cc, sparse-lu.cc, sparse-lu.h, sparse-qr.cc, sparse-qr.h, svd.cc: Rationalize #includes. Use forward declarations of just classes where possible. Reformat some long lines < 80 characters. Reformat some comments for readabliity. * mx-inlines.cc: Rationalize #includes for this file in liboctave/operators used by many in liboctave/numeric.
author Rik <rik@octave.org>
date Tue, 09 May 2017 08:46:07 -0700
parents 855122b993da
children 08036a7f3660
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22755
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1 /*
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2
23221
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3 Copyright (C) 2016-2017 Barbara Lócsi
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4 Copyright (C) 2006 Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
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5 Copyright (C) 1996, 1997 John W. Eaton
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6
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7 This file is part of Octave.
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8
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9 Octave is free software; you can redistribute it and/or modify it
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10 under the terms of the GNU General Public License as published by
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11 the Free Software Foundation; either version 3 of the License, or
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12 (at your option) any later version.
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13
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14 Octave is distributed in the hope that it will be useful, but
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15 WITHOUT ANY WARRANTY; without even the implied warranty of
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16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 GNU General Public License for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with Octave; see the file COPYING. If not, see
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21 <http://www.gnu.org/licenses/>.
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22
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23 */
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24
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25 #ifdef HAVE_CONFIG_H
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26 # include <config.h>
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27 #endif
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28
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29 #include <vector>
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30
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31 #include "CMatrix.h"
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32 #include "dDiagMatrix.h"
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33 #include "dMatrix.h"
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34 #include "fCMatrix.h"
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35 #include "fDiagMatrix.h"
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36 #include "fMatrix.h"
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37 #include "gsvd.h"
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38 #include "lo-error.h"
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39 #include "lo-lapack-proto.h"
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40
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41 namespace octave
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42 {
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43 namespace math
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44 {
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45 template <>
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46 void
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47 gsvd<Matrix>::ggsvd (char& jobu, char& jobv, char& jobq, F77_INT m,
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48 F77_INT n, F77_INT p, F77_INT& k, F77_INT& l,
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49 double *tmp_dataA, F77_INT m1, double *tmp_dataB,
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50 F77_INT p1, Matrix& alpha, Matrix& beta, double *u,
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51 F77_INT nrow_u, double *v, F77_INT nrow_v, double *q,
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52 F77_INT nrow_q, Matrix& work, F77_INT *iwork,
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53 F77_INT& info)
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54 {
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55 F77_XFCN (dggsvd, DGGSVD, (F77_CONST_CHAR_ARG2 (&jobu, 1),
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56 F77_CONST_CHAR_ARG2 (&jobv, 1),
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57 F77_CONST_CHAR_ARG2 (&jobq, 1),
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58 m, n, p, k, l, tmp_dataA, m1,
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59 tmp_dataB, p1, alpha.fortran_vec (),
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60 beta.fortran_vec (), u, nrow_u,
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61 v, nrow_v, q, nrow_q, work.fortran_vec (),
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62 iwork, info
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63 F77_CHAR_ARG_LEN (1)
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64 F77_CHAR_ARG_LEN (1)
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65 F77_CHAR_ARG_LEN (1)));
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66 }
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67
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68 template <>
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69 void
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70 gsvd<FloatMatrix>::ggsvd (char& jobu, char& jobv, char& jobq, F77_INT m,
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71 F77_INT n, F77_INT p, F77_INT& k, F77_INT& l,
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72 float *tmp_dataA, F77_INT m1, float *tmp_dataB,
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73 F77_INT p1, FloatMatrix& alpha,
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74 FloatMatrix& beta, float *u, F77_INT nrow_u,
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75 float *v, F77_INT nrow_v, float *q,
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76 F77_INT nrow_q, FloatMatrix& work,
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77 F77_INT *iwork, F77_INT& info)
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78 {
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79 F77_XFCN (sggsvd, SGGSVD, (F77_CONST_CHAR_ARG2 (&jobu, 1),
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80 F77_CONST_CHAR_ARG2 (&jobv, 1),
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81 F77_CONST_CHAR_ARG2 (&jobq, 1),
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82 m, n, p, k, l, tmp_dataA, m1,
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83 tmp_dataB, p1, alpha.fortran_vec (),
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84 beta.fortran_vec (), u, nrow_u,
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85 v, nrow_v, q, nrow_q, work.fortran_vec (),
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86 iwork, info
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87 F77_CHAR_ARG_LEN (1)
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88 F77_CHAR_ARG_LEN (1)
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89 F77_CHAR_ARG_LEN (1)));
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90 }
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91
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92 template <>
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93 void
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94 gsvd<ComplexMatrix>::ggsvd (char& jobu, char& jobv, char& jobq,
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95 F77_INT m, F77_INT n, F77_INT p, F77_INT& k,
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96 F77_INT& l, Complex *tmp_dataA, F77_INT m1,
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97 Complex *tmp_dataB, F77_INT p1, Matrix& alpha,
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98 Matrix& beta, Complex *u, F77_INT nrow_u,
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99 Complex *v, F77_INT nrow_v, Complex *q,
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100 F77_INT nrow_q, ComplexMatrix& work,
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101 F77_INT *iwork, F77_INT& info)
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102 {
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103 Matrix rwork(2*n, 1);
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104 F77_XFCN (zggsvd, ZGGSVD, (F77_CONST_CHAR_ARG2 (&jobu, 1),
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105 F77_CONST_CHAR_ARG2 (&jobv, 1),
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106 F77_CONST_CHAR_ARG2 (&jobq, 1),
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107 m, n, p, k, l, F77_DBLE_CMPLX_ARG (tmp_dataA),
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108 m1, F77_DBLE_CMPLX_ARG (tmp_dataB), p1,
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109 alpha.fortran_vec (), beta.fortran_vec (),
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110 F77_DBLE_CMPLX_ARG (u), nrow_u,
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111 F77_DBLE_CMPLX_ARG (v), nrow_v,
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112 F77_DBLE_CMPLX_ARG (q), nrow_q,
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113 F77_DBLE_CMPLX_ARG (work.fortran_vec ()),
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114 rwork.fortran_vec (), iwork, info
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115 F77_CHAR_ARG_LEN (1)
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116 F77_CHAR_ARG_LEN (1)
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117 F77_CHAR_ARG_LEN (1)));
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118 }
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119
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120 template <>
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121 void
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122 gsvd<FloatComplexMatrix>::ggsvd (char& jobu, char& jobv, char& jobq,
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123 F77_INT m, F77_INT n, F77_INT p,
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124 F77_INT& k, F77_INT& l,
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125 FloatComplex *tmp_dataA, F77_INT m1,
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126 FloatComplex *tmp_dataB, F77_INT p1,
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127 FloatMatrix& alpha, FloatMatrix& beta,
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128 FloatComplex *u, F77_INT nrow_u,
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129 FloatComplex *v, F77_INT nrow_v,
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130 FloatComplex *q, F77_INT nrow_q,
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131 FloatComplexMatrix& work,
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132 F77_INT *iwork, F77_INT& info)
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133 {
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134 FloatMatrix rwork(2*n, 1);
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135 F77_XFCN (cggsvd, CGGSVD, (F77_CONST_CHAR_ARG2 (&jobu, 1),
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136 F77_CONST_CHAR_ARG2 (&jobv, 1),
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137 F77_CONST_CHAR_ARG2 (&jobq, 1),
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138 m, n, p, k, l, F77_CMPLX_ARG (tmp_dataA), m1,
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139 F77_CMPLX_ARG (tmp_dataB), p1,
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140 alpha.fortran_vec (), beta.fortran_vec (),
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141 F77_CMPLX_ARG (u), nrow_u,
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142 F77_CMPLX_ARG (v), nrow_v,
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143 F77_CMPLX_ARG (q), nrow_q,
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144 F77_CMPLX_ARG (work.fortran_vec ()),
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145 rwork.fortran_vec (), iwork, info
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146 F77_CHAR_ARG_LEN (1)
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147 F77_CHAR_ARG_LEN (1)
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148 F77_CHAR_ARG_LEN (1)));
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149 }
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150
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151 template <typename T>
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152 T
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153 gsvd<T>::left_singular_matrix_A (void) const
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154 {
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155 if (type == gsvd::Type::sigma_only)
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156 {
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157 (*current_liboctave_error_handler)
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158 ("gsvd: U not computed because type == gsvd::sigma_only");
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159 return T ();
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160 }
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161 else
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162 return left_smA;
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163 }
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164
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165 template <typename T>
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166 T
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167 gsvd<T>::left_singular_matrix_B (void) const
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168 {
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169 if (type == gsvd::Type::sigma_only)
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170 {
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171 (*current_liboctave_error_handler)
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172 ("gsvd: V not computed because type == gsvd::sigma_only");
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173 return T ();
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174 }
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175 else
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176 return left_smB;
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177 }
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178
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179 template <typename T>
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180 T
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181 gsvd<T>::right_singular_matrix (void) const
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182 {
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183 if (type == gsvd::Type::sigma_only)
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184 {
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185 (*current_liboctave_error_handler)
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186 ("gsvd: X not computed because type == gsvd::sigma_only");
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187 return T ();
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188 }
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189 else
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190 return right_sm;
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191 }
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192
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193 template <typename T>
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194 T
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195 gsvd<T>::R_matrix (void) const
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196 {
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197 if (type != gsvd::Type::std)
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198 {
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199 (*current_liboctave_error_handler)
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200 ("gsvd: R not computed because type != gsvd::std");
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201 return T ();
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202 }
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203 else
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204 return R;
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205 }
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206
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207 template <typename T>
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208 gsvd<T>::gsvd (const T& a, const T& b, gsvd::Type gsvd_type)
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209 {
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210 F77_INT info;
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211
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212 F77_INT m = octave::to_f77_int (a.rows ());
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213 F77_INT n = octave::to_f77_int (a.cols ());
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214 F77_INT p = octave::to_f77_int (b.rows ());
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215
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216 T atmp = a;
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217 P *tmp_dataA = atmp.fortran_vec ();
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218
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219 T btmp = b;
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220 P *tmp_dataB = btmp.fortran_vec ();
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221
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222 char jobu = 'U';
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223 char jobv = 'V';
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224 char jobq = 'Q';
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225
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226 F77_INT nrow_u = m;
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227 F77_INT nrow_v = p;
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228 F77_INT nrow_q = n;
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229
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230 F77_INT k, l;
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231
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232 switch (gsvd_type)
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233 {
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234 case gsvd<T>::Type::sigma_only:
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235
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236 // Note: for this case, both jobu and jobv should be 'N', but
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237 // there seems to be a bug in dgesvd from Lapack V2.0. To
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238 // demonstrate the bug, set both jobu and jobv to 'N' and find
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239 // the singular values of [eye(3), eye(3)]. The result is
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240 // [-sqrt(2), -sqrt(2), -sqrt(2)].
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241 //
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242 // For Lapack 3.0, this problem seems to be fixed.
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Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
243
22437
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Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
244 jobu = 'N';
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
245 jobv = 'N';
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
246 jobq = 'N';
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
247 nrow_u = nrow_v = nrow_q = 1;
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
248 break;
22236
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Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
249
22437
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Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
250 default:
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
251 break;
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
252 }
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
253
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
254 type = gsvd_type;
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
255
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
256 if (! (jobu == 'N' || jobu == 'O'))
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
257 left_smA.resize (nrow_u, m);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
258
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
259 P *u = left_smA.fortran_vec ();
22236
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Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
260
22437
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Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
261 if (! (jobv == 'N' || jobv == 'O'))
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
262 left_smB.resize (nrow_v, p);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
263
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
264 P *v = left_smB.fortran_vec ();
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
265
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
266 if (! (jobq == 'N' || jobq == 'O'))
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
267 right_sm.resize (nrow_q, n);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
268
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
269 P *q = right_sm.fortran_vec ();
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
270
22945
eb01d0178188 use F77_INT instead of octave_idx_type for liboctave gsvd class
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
271 F77_INT lwork = 3*n;
23450
855122b993da maint: Wrap tertiary operator in parentheses "(COND ? x : y)".
Rik <rik@octave.org>
parents: 23449
diff changeset
272 lwork = (lwork > m ? lwork : m);
22437
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Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
273 lwork = (lwork > p ? lwork : p) + n;
22236
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parents:
diff changeset
274
22437
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Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
275 T work (lwork, 1);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
276 real_matrix alpha (n, 1);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
277 real_matrix beta (n, 1);
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Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
278
22945
eb01d0178188 use F77_INT instead of octave_idx_type for liboctave gsvd class
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
279 std::vector<F77_INT> iwork (n);
22437
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Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
280
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
281 gsvd<T>::ggsvd (jobu, jobv, jobq, m, n, p, k, l,
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
282 tmp_dataA, m, tmp_dataB, p, alpha, beta, u,
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
283 nrow_u, v, nrow_v, q, nrow_q, work, iwork.data (), info);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
284
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
285 if (f77_exception_encountered)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
286 (*current_liboctave_error_handler) ("unrecoverable error in *ggsvd");
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
287
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
288 if (info < 0)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
289 (*current_liboctave_error_handler) ("*ggsvd.f: argument %d illegal",
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
290 -info);
22236
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Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
291 else
065a44375723 gsvd: reduce code duplication with templates.
Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
292 {
22437
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
293 if (info > 0)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
294 (*current_liboctave_error_handler)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
295 ("*ggsvd.f: Jacobi-type procedure failed to converge.");
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
296 else
22236
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Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
297 {
22945
eb01d0178188 use F77_INT instead of octave_idx_type for liboctave gsvd class
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
298 F77_INT i, j;
22437
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
299
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
300 if (gsvd<T>::Type::std == gsvd_type)
22236
065a44375723 gsvd: reduce code duplication with templates.
Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
301 {
22437
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
302 R.resize(k+l, k+l);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
303 int astart = n-k-l;
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
304 if (m - k - l >= 0)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
305 {
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
306 astart = n-k-l;
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
307 // R is stored in A(1:K+L,N-K-L+1:N)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
308 for (i = 0; i < k+l; i++)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
309 for (j = 0; j < k+l; j++)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
310 R.xelem (i, j) = atmp.xelem (i, astart + j);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
311 }
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
312 else
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
313 {
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
314 // (R11 R12 R13 ) is stored in A(1:M, N-K-L+1:N),
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
315 // ( 0 R22 R23 )
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
316
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
317 for (i = 0; i < m; i++)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
318 for (j = 0; j < k+l; j++)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
319 R.xelem (i, j) = atmp.xelem (i, astart + j);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
320 // and R33 is stored in B(M-K+1:L,N+M-K-L+1:N)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
321 for (i = k+l-1; i >=m; i--)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
322 {
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
323 for (j = 0; j < m; j++)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
324 R.xelem(i, j) = 0.0;
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
325 for (j = m; j < k+l; j++)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
326 R.xelem (i, j) = btmp.xelem (i - k, astart + j);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
327 }
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
328 }
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
329 }
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
330
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
331 if (m-k-l >= 0)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
332 {
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
333 // Fills in C and S
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
334 sigmaA.resize (l, l);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
335 sigmaB.resize (l, l);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
336 for (i = 0; i < l; i++)
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
337 {
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
338 sigmaA.dgxelem(i) = alpha.elem(k+i);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
339 sigmaB.dgxelem(i) = beta.elem(k+i);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
340 }
22236
065a44375723 gsvd: reduce code duplication with templates.
Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
341 }
065a44375723 gsvd: reduce code duplication with templates.
Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
342 else
065a44375723 gsvd: reduce code duplication with templates.
Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
343 {
22437
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
344 // Fills in C and S
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
345 sigmaA.resize (m-k, m-k);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
346 sigmaB.resize (m-k, m-k);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
347 for (i = 0; i < m-k; i++)
22402
4caa7b28d183 maint: Style check C++ code in liboctave/
Rik <rik@octave.org>
parents: 22323
diff changeset
348 {
22437
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
349 sigmaA.dgxelem(i) = alpha.elem(k+i);
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
350 sigmaB.dgxelem(i) = beta.elem(k+i);
22402
4caa7b28d183 maint: Style check C++ code in liboctave/
Rik <rik@octave.org>
parents: 22323
diff changeset
351 }
22236
065a44375723 gsvd: reduce code duplication with templates.
Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
352 }
065a44375723 gsvd: reduce code duplication with templates.
Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
353 }
065a44375723 gsvd: reduce code duplication with templates.
Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
354 }
065a44375723 gsvd: reduce code duplication with templates.
Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
355 }
22437
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
356
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
357 // Instantiations we need.
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
358 template class gsvd<Matrix>;
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
359 template class gsvd<FloatMatrix>;
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
360 template class gsvd<ComplexMatrix>;
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
361 template class gsvd<FloatComplexMatrix>;
0aee8b620864 gsvd: move new class into the octave::math namespace.
Carnë Draug <carandraug@octave.org>
parents: 22436
diff changeset
362 }
22236
065a44375723 gsvd: reduce code duplication with templates.
Barbara Locsi <locsi.barbara@gmail.com>
parents:
diff changeset
363 }