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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021. In all .txi and .texi files except gpl.txi and gpl.texi in the doc/liboctave and doc/interpreter directories, change the copyright to "Octave Project Developers", the same as used for other source files. Update copyright notices for 2022 (not done since 2019). For gpl.txi and gpl.texi, change the copyright notice to be "Free Software Foundation, Inc." and leave the date at 2007 only because this file only contains the text of the GPL, not anything created by the Octave Project Developers. Add Paul Thomas to contributors.in.
author John W. Eaton <jwe@octave.org>
date Tue, 28 Dec 2021 18:22:40 -0500
parents 2fbb98fb1b25
children e88a07dec498
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1994-2022 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe]
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25
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26 #if defined (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 #include "Array.h"
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31 #include "CMatrix.h"
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32 #include "dMatrix.h"
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33 #include "fCMatrix.h"
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34 #include "fMatrix.h"
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35 #include "hess.h"
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36 #include "lo-error.h"
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37 #include "lo-lapack-proto.h"
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38
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39 namespace octave
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40 {
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41 namespace math
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42 {
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43 template <>
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44 OCTAVE_API octave_idx_type
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45 hess<Matrix>::init (const Matrix& a)
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46 {
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47 F77_INT a_nr = to_f77_int (a.rows ());
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48 F77_INT a_nc = to_f77_int (a.cols ());
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49
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50 if (a_nr != a_nc)
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51 (*current_liboctave_error_handler) ("hess: requires square matrix");
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52
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53 char job = 'N';
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54 char side = 'R';
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55
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56 F77_INT n = a_nc;
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57 F77_INT lwork = 32 * n;
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58 F77_INT info;
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59 F77_INT ilo;
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60 F77_INT ihi;
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61
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62 m_hess_mat = a;
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63 double *h = m_hess_mat.fortran_vec ();
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64
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65 Array<double> scale (dim_vector (n, 1));
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66 double *pscale = scale.fortran_vec ();
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67
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68 F77_XFCN (dgebal, DGEBAL, (F77_CONST_CHAR_ARG2 (&job, 1),
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69 n, h, n, ilo, ihi, pscale, info
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70 F77_CHAR_ARG_LEN (1)));
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71
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72 Array<double> tau (dim_vector (n-1, 1));
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73 double *ptau = tau.fortran_vec ();
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74
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75 Array<double> work (dim_vector (lwork, 1));
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76 double *pwork = work.fortran_vec ();
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77
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78 F77_XFCN (dgehrd, DGEHRD, (n, ilo, ihi, h, n, ptau, pwork,
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79 lwork, info));
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80
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81 m_unitary_hess_mat = m_hess_mat;
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82 double *z = m_unitary_hess_mat.fortran_vec ();
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83
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84 F77_XFCN (dorghr, DORGHR, (n, ilo, ihi, z, n, ptau, pwork,
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85 lwork, info));
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86
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87 F77_XFCN (dgebak, DGEBAK, (F77_CONST_CHAR_ARG2 (&job, 1),
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88 F77_CONST_CHAR_ARG2 (&side, 1),
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89 n, ilo, ihi, pscale, n, z,
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90 n, info
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91 F77_CHAR_ARG_LEN (1)
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92 F77_CHAR_ARG_LEN (1)));
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93
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94 // If someone thinks of a more graceful way of doing
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95 // this (or faster for that matter :-)), please let
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96 // me know!
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97
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98 if (n > 2)
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99 for (F77_INT j = 0; j < a_nc; j++)
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100 for (F77_INT i = j+2; i < a_nr; i++)
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101 m_hess_mat.elem (i, j) = 0;
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102
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103 return info;
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104 }
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105
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106 template <>
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107 OCTAVE_API octave_idx_type
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108 hess<FloatMatrix>::init (const FloatMatrix& a)
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109 {
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110 F77_INT a_nr = to_f77_int (a.rows ());
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111 F77_INT a_nc = to_f77_int (a.cols ());
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112
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113 if (a_nr != a_nc)
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114 (*current_liboctave_error_handler) ("hess: requires square matrix");
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115
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116 char job = 'N';
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117 char side = 'R';
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118
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119 F77_INT n = a_nc;
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120 F77_INT lwork = 32 * n;
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121 F77_INT info;
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122 F77_INT ilo;
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123 F77_INT ihi;
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124
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125 m_hess_mat = a;
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126 float *h = m_hess_mat.fortran_vec ();
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127
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128 Array<float> scale (dim_vector (n, 1));
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129 float *pscale = scale.fortran_vec ();
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130
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131 F77_XFCN (sgebal, SGEBAL, (F77_CONST_CHAR_ARG2 (&job, 1),
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132 n, h, n, ilo, ihi, pscale, info
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133 F77_CHAR_ARG_LEN (1)));
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134
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135 Array<float> tau (dim_vector (n-1, 1));
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136 float *ptau = tau.fortran_vec ();
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137
22329
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138 Array<float> work (dim_vector (lwork, 1));
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139 float *pwork = work.fortran_vec ();
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140
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141 F77_XFCN (sgehrd, SGEHRD, (n, ilo, ihi, h, n, ptau, pwork,
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diff changeset
142 lwork, info));
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143
30061
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144 m_unitary_hess_mat = m_hess_mat;
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145 float *z = m_unitary_hess_mat.fortran_vec ();
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146
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147 F77_XFCN (sorghr, SORGHR, (n, ilo, ihi, z, n, ptau, pwork,
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148 lwork, info));
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149
22329
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150 F77_XFCN (sgebak, SGEBAK, (F77_CONST_CHAR_ARG2 (&job, 1),
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151 F77_CONST_CHAR_ARG2 (&side, 1),
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152 n, ilo, ihi, pscale, n, z,
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153 n, info
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154 F77_CHAR_ARG_LEN (1)
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155 F77_CHAR_ARG_LEN (1)));
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156
22329
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157 // If someone thinks of a more graceful way of doing
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158 // this (or faster for that matter :-)), please let
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159 // me know!
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160
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161 if (n > 2)
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162 for (F77_INT j = 0; j < a_nc; j++)
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163 for (F77_INT i = j+2; i < a_nr; i++)
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164 m_hess_mat.elem (i, j) = 0;
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165
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166 return info;
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167 }
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168
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169 template <>
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170 OCTAVE_API octave_idx_type
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171 hess<ComplexMatrix>::init (const ComplexMatrix& a)
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172 {
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173 F77_INT a_nr = to_f77_int (a.rows ());
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174 F77_INT a_nc = to_f77_int (a.cols ());
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175
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176 if (a_nr != a_nc)
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177 (*current_liboctave_error_handler) ("hess: requires square matrix");
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178
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179 char job = 'N';
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180 char side = 'R';
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181
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182 F77_INT n = a_nc;
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183 F77_INT lwork = 32 * n;
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184 F77_INT info;
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185 F77_INT ilo;
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186 F77_INT ihi;
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187
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188 m_hess_mat = a;
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189 Complex *h = m_hess_mat.fortran_vec ();
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190
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191 Array<double> scale (dim_vector (n, 1));
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192 double *pscale = scale.fortran_vec ();
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193
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194 F77_XFCN (zgebal, ZGEBAL, (F77_CONST_CHAR_ARG2 (&job, 1),
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195 n, F77_DBLE_CMPLX_ARG (h), n, ilo, ihi, pscale, info
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196 F77_CHAR_ARG_LEN (1)));
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197
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198 Array<Complex> tau (dim_vector (n-1, 1));
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199 Complex *ptau = tau.fortran_vec ();
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200
22329
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201 Array<Complex> work (dim_vector (lwork, 1));
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202 Complex *pwork = work.fortran_vec ();
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203
22402
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204 F77_XFCN (zgehrd, ZGEHRD, (n, ilo, ihi, F77_DBLE_CMPLX_ARG (h), n,
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205 F77_DBLE_CMPLX_ARG (ptau), F77_DBLE_CMPLX_ARG (pwork), lwork, info));
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206
30061
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207 m_unitary_hess_mat = m_hess_mat;
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208 Complex *z = m_unitary_hess_mat.fortran_vec ();
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209
22402
4caa7b28d183 maint: Style check C++ code in liboctave/
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diff changeset
210 F77_XFCN (zunghr, ZUNGHR, (n, ilo, ihi, F77_DBLE_CMPLX_ARG (z), n,
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diff changeset
211 F77_DBLE_CMPLX_ARG (ptau), F77_DBLE_CMPLX_ARG (pwork),
22329
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diff changeset
212 lwork, info));
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diff changeset
213
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
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214 F77_XFCN (zgebak, ZGEBAK, (F77_CONST_CHAR_ARG2 (&job, 1),
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diff changeset
215 F77_CONST_CHAR_ARG2 (&side, 1),
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diff changeset
216 n, ilo, ihi, pscale, n, F77_DBLE_CMPLX_ARG (z), n, info
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217 F77_CHAR_ARG_LEN (1)
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diff changeset
218 F77_CHAR_ARG_LEN (1)));
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diff changeset
219
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220 // If someone thinks of a more graceful way of
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diff changeset
221 // doing this (or faster for that matter :-)),
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
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diff changeset
222 // please let me know!
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diff changeset
223
22329
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diff changeset
224 if (n > 2)
22946
32ec45de162f use F77_INT instead of octave_idx_type for liboctave hess class
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diff changeset
225 for (F77_INT j = 0; j < a_nc; j++)
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226 for (F77_INT i = j+2; i < a_nr; i++)
30061
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diff changeset
227 m_hess_mat.elem (i, j) = 0;
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diff changeset
228
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
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diff changeset
229 return info;
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
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diff changeset
230 }
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diff changeset
231
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
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diff changeset
232 template <>
29228
5c14f81e0937 Set API tags in files in liboctave/numeric (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 27923
diff changeset
233 OCTAVE_API octave_idx_type
22329
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diff changeset
234 hess<FloatComplexMatrix>::init (const FloatComplexMatrix& a)
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
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diff changeset
235 {
23696
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diff changeset
236 F77_INT a_nr = to_f77_int (a.rows ());
08036a7f3660 remove octave:: namespace tag from symbols used inside octave namespace
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237 F77_INT a_nc = to_f77_int (a.cols ());
22329
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238
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diff changeset
239 if (a_nr != a_nc)
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diff changeset
240 {
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241 (*current_liboctave_error_handler) ("hess: requires square matrix");
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242 return -1;
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diff changeset
243 }
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diff changeset
244
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diff changeset
245 char job = 'N';
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246 char side = 'R';
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247
22946
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248 F77_INT n = a_nc;
32ec45de162f use F77_INT instead of octave_idx_type for liboctave hess class
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diff changeset
249 F77_INT lwork = 32 * n;
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diff changeset
250 F77_INT info;
32ec45de162f use F77_INT instead of octave_idx_type for liboctave hess class
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251 F77_INT ilo;
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252 F77_INT ihi;
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253
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254 m_hess_mat = a;
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255 FloatComplex *h = m_hess_mat.fortran_vec ();
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256
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257 Array<float> scale (dim_vector (n, 1));
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258 float *pscale = scale.fortran_vec ();
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259
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260 F77_XFCN (cgebal, CGEBAL, (F77_CONST_CHAR_ARG2 (&job, 1),
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261 n, F77_CMPLX_ARG (h), n, ilo, ihi, pscale, info
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262 F77_CHAR_ARG_LEN (1)));
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263
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264 Array<FloatComplex> tau (dim_vector (n-1, 1));
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265 FloatComplex *ptau = tau.fortran_vec ();
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266
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267 Array<FloatComplex> work (dim_vector (lwork, 1));
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268 FloatComplex *pwork = work.fortran_vec ();
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269
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270 F77_XFCN (cgehrd, CGEHRD, (n, ilo, ihi, F77_CMPLX_ARG (h), n,
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271 F77_CMPLX_ARG (ptau), F77_CMPLX_ARG (pwork), lwork, info));
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272
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273 m_unitary_hess_mat = m_hess_mat;
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274 FloatComplex *z = m_unitary_hess_mat.fortran_vec ();
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275
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276 F77_XFCN (cunghr, CUNGHR, (n, ilo, ihi, F77_CMPLX_ARG (z), n,
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277 F77_CMPLX_ARG (ptau), F77_CMPLX_ARG (pwork),
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278 lwork, info));
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279
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280 F77_XFCN (cgebak, CGEBAK, (F77_CONST_CHAR_ARG2 (&job, 1),
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281 F77_CONST_CHAR_ARG2 (&side, 1),
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282 n, ilo, ihi, pscale, n, F77_CMPLX_ARG (z), n, info
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283 F77_CHAR_ARG_LEN (1)
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284 F77_CHAR_ARG_LEN (1)));
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285
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286 // If someone thinks of a more graceful way of
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287 // doing this (or faster for that matter :-)),
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288 // please let me know!
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289
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290 if (n > 2)
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291 for (F77_INT j = 0; j < a_nc; j++)
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292 for (F77_INT i = j+2; i < a_nr; i++)
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293 m_hess_mat.elem (i, j) = 0;
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294
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295 return info;
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296 }
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297 }
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298 }