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annotate liboctave/array/fCDiagMatrix.cc @ 23083:e9a0469dedd9 stable

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maint: strip extra trailing newlines from files.
author John W. Eaton <jwe@octave.org>
date Fri, 20 Jan 2017 12:19:08 -0500
parents 4caa7b28d183
children ef4d915df748 3ac9f9ecfae5
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1 // DiagMatrix manipulations.
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2 /*
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3
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4 Copyright (C) 1994-2016 John W. Eaton
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5 Copyright (C) 2009 VZLU Prague
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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 the
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11 Free Software Foundation; either version 3 of the License, or (at your
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12 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 WITHOUT
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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17 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 #if defined (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 <iostream>
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30
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31 #include "Array-util.h"
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32 #include "lo-error.h"
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33 #include "lo-ieee.h"
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34 #include "mx-base.h"
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35 #include "mx-inlines.cc"
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36 #include "oct-cmplx.h"
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37
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38 // FloatComplex Diagonal Matrix class
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39
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40 FloatComplexDiagMatrix::FloatComplexDiagMatrix (const FloatDiagMatrix& a)
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41 : MDiagArray2<FloatComplex> (a.rows (), a.cols ())
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42 {
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43 for (octave_idx_type i = 0; i < length (); i++)
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44 elem (i, i) = a.elem (i, i);
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45 }
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46
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47 bool
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48 FloatComplexDiagMatrix::operator == (const FloatComplexDiagMatrix& a) const
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49 {
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50 if (rows () != a.rows () || cols () != a.cols ())
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51 return 0;
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52
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53 return mx_inline_equal (length (), data (), a.data ());
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54 }
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55
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56 bool
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57 FloatComplexDiagMatrix::operator != (const FloatComplexDiagMatrix& a) const
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58 {
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59 return !(*this == a);
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60 }
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61
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62 FloatComplexDiagMatrix&
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63 FloatComplexDiagMatrix::fill (float val)
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64 {
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65 for (octave_idx_type i = 0; i < length (); i++)
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66 elem (i, i) = val;
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67 return *this;
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68 }
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69
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70 FloatComplexDiagMatrix&
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71 FloatComplexDiagMatrix::fill (const FloatComplex& val)
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72 {
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73 for (octave_idx_type i = 0; i < length (); i++)
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74 elem (i, i) = val;
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75 return *this;
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76 }
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77
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78 FloatComplexDiagMatrix&
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79 FloatComplexDiagMatrix::fill (float val,
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80 octave_idx_type beg, octave_idx_type end)
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81 {
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82 if (beg < 0 || end >= length () || end < beg)
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83 (*current_liboctave_error_handler) ("range error for fill");
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84
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85 for (octave_idx_type i = beg; i <= end; i++)
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86 elem (i, i) = val;
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87
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88 return *this;
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89 }
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90
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91 FloatComplexDiagMatrix&
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92 FloatComplexDiagMatrix::fill (const FloatComplex& val,
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93 octave_idx_type beg, octave_idx_type end)
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94 {
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95 if (beg < 0 || end >= length () || end < beg)
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96 (*current_liboctave_error_handler) ("range error for fill");
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97
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98 for (octave_idx_type i = beg; i <= end; i++)
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99 elem (i, i) = val;
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100
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101 return *this;
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102 }
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103
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104 FloatComplexDiagMatrix&
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105 FloatComplexDiagMatrix::fill (const FloatColumnVector& a)
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106 {
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107 octave_idx_type len = length ();
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108 if (a.numel () != len)
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109 (*current_liboctave_error_handler) ("range error for fill");
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110
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111 for (octave_idx_type i = 0; i < len; i++)
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112 elem (i, i) = a.elem (i);
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113
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114 return *this;
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115 }
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116
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117 FloatComplexDiagMatrix&
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118 FloatComplexDiagMatrix::fill (const FloatComplexColumnVector& a)
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119 {
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120 octave_idx_type len = length ();
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121 if (a.numel () != len)
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122 (*current_liboctave_error_handler) ("range error for fill");
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123
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124 for (octave_idx_type i = 0; i < len; i++)
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125 elem (i, i) = a.elem (i);
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126
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127 return *this;
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128 }
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129
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130 FloatComplexDiagMatrix&
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131 FloatComplexDiagMatrix::fill (const FloatRowVector& a)
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132 {
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133 octave_idx_type len = length ();
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134 if (a.numel () != len)
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135 (*current_liboctave_error_handler) ("range error for fill");
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136
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137 for (octave_idx_type i = 0; i < len; i++)
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138 elem (i, i) = a.elem (i);
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139
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140 return *this;
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141 }
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142
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143 FloatComplexDiagMatrix&
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144 FloatComplexDiagMatrix::fill (const FloatComplexRowVector& a)
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145 {
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146 octave_idx_type len = length ();
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147 if (a.numel () != len)
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148 (*current_liboctave_error_handler) ("range error for fill");
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149
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150 for (octave_idx_type i = 0; i < len; i++)
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151 elem (i, i) = a.elem (i);
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152
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153 return *this;
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154 }
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155
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156 FloatComplexDiagMatrix&
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157 FloatComplexDiagMatrix::fill (const FloatColumnVector& a, octave_idx_type beg)
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158 {
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159 octave_idx_type a_len = a.numel ();
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160 if (beg < 0 || beg + a_len >= length ())
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161 (*current_liboctave_error_handler) ("range error for fill");
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162
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163 for (octave_idx_type i = 0; i < a_len; i++)
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164 elem (i+beg, i+beg) = a.elem (i);
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165
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166 return *this;
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167 }
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168
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169 FloatComplexDiagMatrix&
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170 FloatComplexDiagMatrix::fill (const FloatComplexColumnVector& a,
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171 octave_idx_type beg)
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172 {
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173 octave_idx_type a_len = a.numel ();
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174 if (beg < 0 || beg + a_len >= length ())
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175 (*current_liboctave_error_handler) ("range error for fill");
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176
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177 for (octave_idx_type i = 0; i < a_len; i++)
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178 elem (i+beg, i+beg) = a.elem (i);
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179
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180 return *this;
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181 }
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182
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183 FloatComplexDiagMatrix&
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184 FloatComplexDiagMatrix::fill (const FloatRowVector& a, octave_idx_type beg)
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185 {
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186 octave_idx_type a_len = a.numel ();
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187 if (beg < 0 || beg + a_len >= length ())
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188 (*current_liboctave_error_handler) ("range error for fill");
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189
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190 for (octave_idx_type i = 0; i < a_len; i++)
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191 elem (i+beg, i+beg) = a.elem (i);
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192
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193 return *this;
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194 }
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195
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196 FloatComplexDiagMatrix&
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197 FloatComplexDiagMatrix::fill (const FloatComplexRowVector& a,
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198 octave_idx_type beg)
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199 {
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200 octave_idx_type a_len = a.numel ();
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201 if (beg < 0 || beg + a_len >= length ())
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202 (*current_liboctave_error_handler) ("range error for fill");
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203
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204 for (octave_idx_type i = 0; i < a_len; i++)
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205 elem (i+beg, i+beg) = a.elem (i);
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206
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207 return *this;
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208 }
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209
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210 FloatDiagMatrix
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211 FloatComplexDiagMatrix::abs (void) const
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212 {
15448
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Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 15271
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213 return FloatDiagMatrix (extract_diag ().abs (), rows (), columns ());
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214 }
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215
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216 FloatComplexDiagMatrix
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217 conj (const FloatComplexDiagMatrix& a)
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218 {
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219 return FloatComplexDiagMatrix (conj (a.extract_diag ()), a.rows (),
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220 a.columns ());
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221 }
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222
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223 // resize is the destructive analog for this one
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224
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225 FloatComplexMatrix
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226 FloatComplexDiagMatrix::extract (octave_idx_type r1, octave_idx_type c1,
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227 octave_idx_type r2, octave_idx_type c2) const
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228 {
17663
7975d75f933c Use std::swap in liboctave instead of temporary variable.
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229 if (r1 > r2) { std::swap (r1, r2); }
7975d75f933c Use std::swap in liboctave instead of temporary variable.
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230 if (c1 > c2) { std::swap (c1, c2); }
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231
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232 octave_idx_type new_r = r2 - r1 + 1;
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233 octave_idx_type new_c = c2 - c1 + 1;
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234
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235 FloatComplexMatrix result (new_r, new_c);
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236
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237 for (octave_idx_type j = 0; j < new_c; j++)
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238 for (octave_idx_type i = 0; i < new_r; i++)
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239 result.elem (i, j) = elem (r1+i, c1+j);
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240
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241 return result;
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242 }
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243
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244 // extract row or column i.
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245
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246 FloatComplexRowVector
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diff changeset
247 FloatComplexDiagMatrix::row (octave_idx_type i) const
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248 {
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249 octave_idx_type r = rows ();
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250 octave_idx_type c = cols ();
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251 if (i < 0 || i >= r)
21136
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252 (*current_liboctave_error_handler) ("invalid row selection");
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253
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254 FloatComplexRowVector retval (c, 0.0);
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255 if (r <= c || (r > c && i < c))
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diff changeset
256 retval.elem (i) = elem (i, i);
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257
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258 return retval;
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259 }
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260
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261 FloatComplexRowVector
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262 FloatComplexDiagMatrix::row (char *s) const
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263 {
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264 if (! s)
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265 (*current_liboctave_error_handler) ("invalid row selection");
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266
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267 char c = *s;
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diff changeset
268 if (c == 'f' || c == 'F')
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269 return row (static_cast<octave_idx_type>(0));
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270 else if (c == 'l' || c == 'L')
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271 return row (rows () - 1);
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272 else
21136
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parents: 21129
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273 (*current_liboctave_error_handler) ("invalid row selection");
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274 }
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275
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276 FloatComplexColumnVector
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277 FloatComplexDiagMatrix::column (octave_idx_type i) const
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parents:
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278 {
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279 octave_idx_type r = rows ();
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280 octave_idx_type c = cols ();
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281 if (i < 0 || i >= c)
21136
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282 (*current_liboctave_error_handler) ("invalid column selection");
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283
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284 FloatComplexColumnVector retval (r, 0.0);
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285 if (r >= c || (r < c && i < r))
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286 retval.elem (i) = elem (i, i);
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287
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288 return retval;
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289 }
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290
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291 FloatComplexColumnVector
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diff changeset
292 FloatComplexDiagMatrix::column (char *s) const
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293 {
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294 if (! s)
21136
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parents: 21129
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295 (*current_liboctave_error_handler) ("invalid column selection");
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296
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297 char c = *s;
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diff changeset
298 if (c == 'f' || c == 'F')
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299 return column (static_cast<octave_idx_type>(0));
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300 else if (c == 'l' || c == 'L')
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parents:
diff changeset
301 return column (cols () - 1);
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diff changeset
302 else
21136
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parents: 21129
diff changeset
303 (*current_liboctave_error_handler) ("invalid column selection");
7789
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304 }
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diff changeset
305
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diff changeset
306 FloatComplexDiagMatrix
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parents:
diff changeset
307 FloatComplexDiagMatrix::inverse (void) const
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parents:
diff changeset
308 {
8811
20dfb885f877 int -> octave_idx fixes
John W. Eaton <jwe@octave.org>
parents: 8380
diff changeset
309 octave_idx_type info;
7789
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310 return inverse (info);
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311 }
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312
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diff changeset
313 FloatComplexDiagMatrix
8811
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parents: 8380
diff changeset
314 FloatComplexDiagMatrix::inverse (octave_idx_type& info) const
7789
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315 {
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diff changeset
316 octave_idx_type r = rows ();
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diff changeset
317 octave_idx_type c = cols ();
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diff changeset
318 if (r != c)
21136
7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler.
Rik <rik@octave.org>
parents: 21129
diff changeset
319 (*current_liboctave_error_handler) ("inverse requires square matrix");
7789
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parents:
diff changeset
320
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
321 FloatComplexDiagMatrix retval (r, c);
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parents:
diff changeset
322
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parents:
diff changeset
323 info = 0;
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parents:
diff changeset
324 for (octave_idx_type i = 0; i < length (); i++)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
325 {
19738
9155bab86647 use 0.0f style constants instead of static_cast<float> (0.0)
John W. Eaton <jwe@octave.org>
parents: 19697
diff changeset
326 if (elem (i, i) == 0.0f)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
327 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
328 info = -1;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
329 return *this;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
330 }
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
331 else
19738
9155bab86647 use 0.0f style constants instead of static_cast<float> (0.0)
John W. Eaton <jwe@octave.org>
parents: 19697
diff changeset
332 retval.elem (i, i) = 1.0f / elem (i, i);
7789
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parents:
diff changeset
333 }
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
334
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
335 return retval;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
336 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
337
8840
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
338 FloatComplexDiagMatrix
18467
c5a101de2d88 Allow pinv to work on Diagonal Matrices with a tolerance (bug #41546).
Rik <rik@octave.org>
parents: 18084
diff changeset
339 FloatComplexDiagMatrix::pseudo_inverse (float tol) const
8840
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
340 {
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
341 octave_idx_type r = rows ();
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
342 octave_idx_type c = cols ();
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
343 octave_idx_type len = length ();
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
344
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
345 FloatComplexDiagMatrix retval (c, r);
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
346
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
347 for (octave_idx_type i = 0; i < len; i++)
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
348 {
18481
16b0cd465ecd Handle special case of 0 for pinv with Diagonal matrices.
Rik <rik@octave.org>
parents: 18467
diff changeset
349 float val = std::abs (elem (i, i));
18496
80b8873c90ba Fix pinv bug with 0 values introduced in cset 16b0cd465ecd.
Rik <rik@octave.org>
parents: 18494
diff changeset
350 if (val < tol || val == 0.0f)
18467
c5a101de2d88 Allow pinv to work on Diagonal Matrices with a tolerance (bug #41546).
Rik <rik@octave.org>
parents: 18084
diff changeset
351 retval.elem (i, i) = 0.0f;
18496
80b8873c90ba Fix pinv bug with 0 values introduced in cset 16b0cd465ecd.
Rik <rik@octave.org>
parents: 18494
diff changeset
352 else
18494
1fa5bba16218 [mq]: pinv
Rik <rik@octave.org>
parents: 18481
diff changeset
353 retval.elem (i, i) = 1.0f / elem (i, i);
8840
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
354 }
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
355
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
356 return retval;
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
357 }
c690e3772583 support diagonal matrices in pinv
Jaroslav Hajek <highegg@gmail.com>
parents: 8811
diff changeset
358
8366
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
359 bool
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
360 FloatComplexDiagMatrix::all_elements_are_real (void) const
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
361 {
9825
7483fe200fab narrow complex values with negative zero imaginary parts
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
362 return mx_inline_all_real (length (), data ());
8366
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
363 }
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
364
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
365 // diagonal matrix by diagonal matrix -> diagonal matrix operations
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
366
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
367 FloatComplexDiagMatrix&
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
368 FloatComplexDiagMatrix::operator += (const FloatDiagMatrix& a)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
369 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
370 octave_idx_type r = rows ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
371 octave_idx_type c = cols ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
372
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
373 octave_idx_type a_nr = a.rows ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
374 octave_idx_type a_nc = a.cols ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
375
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
376 if (r != a_nr || c != a_nc)
22327
d0562b3159c7 move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
377 octave::err_nonconformant ("operator +=", r, c, a_nr, a_nc);
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
378
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
379 if (r == 0 || c == 0)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
380 return *this;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
381
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
382 FloatComplex *d = fortran_vec (); // Ensures only 1 reference to my privates!
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
383
9550
3d6a9aea2aea refactor binary & bool ops in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 9003
diff changeset
384 mx_inline_add2 (length (), d, a.data ());
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
385 return *this;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
386 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
387
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
388 FloatComplexDiagMatrix
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
389 operator * (const FloatComplexDiagMatrix& a, const FloatDiagMatrix& b)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
390 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
391 octave_idx_type a_nr = a.rows ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
392 octave_idx_type a_nc = a.cols ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
393
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
394 octave_idx_type b_nr = b.rows ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
395 octave_idx_type b_nc = b.cols ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
396
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
397 if (a_nc != b_nr)
22327
d0562b3159c7 move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
398 octave::err_nonconformant ("operator *", a_nr, a_nc, b_nr, b_nc);
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
399
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
400 FloatComplexDiagMatrix c (a_nr, b_nc);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
401
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
402 octave_idx_type len = c.length ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
403 octave_idx_type lenm = len < a_nc ? len : a_nc;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
404
9698
7c6d5d8c8d37 fix diag*diag multiplication
Jaroslav Hajek <highegg@gmail.com>
parents: 9601
diff changeset
405 for (octave_idx_type i = 0; i < lenm; i++)
7c6d5d8c8d37 fix diag*diag multiplication
Jaroslav Hajek <highegg@gmail.com>
parents: 9601
diff changeset
406 c.dgxelem (i) = a.dgelem (i) * b.dgelem (i);
7c6d5d8c8d37 fix diag*diag multiplication
Jaroslav Hajek <highegg@gmail.com>
parents: 9601
diff changeset
407 for (octave_idx_type i = lenm; i < len; i++)
7c6d5d8c8d37 fix diag*diag multiplication
Jaroslav Hajek <highegg@gmail.com>
parents: 9601
diff changeset
408 c.dgxelem (i) = 0.0f;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
409
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
410 return c;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
411 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
412
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
413 FloatComplexDiagMatrix
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
414 operator * (const FloatDiagMatrix& a, const FloatComplexDiagMatrix& b)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
415 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
416 octave_idx_type a_nr = a.rows ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
417 octave_idx_type a_nc = a.cols ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
418
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
419 octave_idx_type b_nr = b.rows ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
420 octave_idx_type b_nc = b.cols ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
421
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
422 if (a_nc != b_nr)
22327
d0562b3159c7 move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
423 octave::err_nonconformant ("operator *", a_nr, a_nc, b_nr, b_nc);
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
424
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
425 if (a_nr == 0 || a_nc == 0 || b_nc == 0)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
426 return FloatComplexDiagMatrix (a_nr, a_nc, 0.0);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
427
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
428 FloatComplexDiagMatrix c (a_nr, b_nc);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
429
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
430 octave_idx_type len = a_nr < b_nc ? a_nr : b_nc;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
431
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
432 for (octave_idx_type i = 0; i < len; i++)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
433 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
434 float a_element = a.elem (i, i);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
435 FloatComplex b_element = b.elem (i, i);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
436
8380
dbe67764e628 fix & improve speed of diagonal matrix multiplication
Jaroslav Hajek <highegg@gmail.com>
parents: 8375
diff changeset
437 c.elem (i, i) = a_element * b_element;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
438 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
439
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
440 return c;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
441 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
442
8366
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
443 FloatComplexDiagMatrix
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
444 operator * (const FloatComplexDiagMatrix& a, const FloatComplexDiagMatrix& b)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
445 {
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
446 octave_idx_type a_nr = a.rows ();
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
447 octave_idx_type a_nc = a.cols ();
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
448
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
449 octave_idx_type b_nr = b.rows ();
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
450 octave_idx_type b_nc = b.cols ();
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
451
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
452 if (a_nc != b_nr)
22327
d0562b3159c7 move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
453 octave::err_nonconformant ("operator *", a_nr, a_nc, b_nr, b_nc);
8366
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
454
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
455 if (a_nr == 0 || a_nc == 0 || b_nc == 0)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
456 return FloatComplexDiagMatrix (a_nr, a_nc, 0.0);
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
457
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
458 FloatComplexDiagMatrix c (a_nr, b_nc);
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
459
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
460 octave_idx_type len = a_nr < b_nc ? a_nr : b_nc;
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
461
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
462 for (octave_idx_type i = 0; i < len; i++)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
463 {
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
464 FloatComplex a_element = a.elem (i, i);
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
465 FloatComplex b_element = b.elem (i, i);
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
466
8380
dbe67764e628 fix & improve speed of diagonal matrix multiplication
Jaroslav Hajek <highegg@gmail.com>
parents: 8375
diff changeset
467 c.elem (i, i) = a_element * b_element;
8366
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
468 }
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
469
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
470 return c;
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
471 }
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
472
7789
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473 // other operations
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474
8371
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475 FloatComplexDET
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476 FloatComplexDiagMatrix::determinant (void) const
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477 {
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478 FloatComplexDET det (1.0f);
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479 if (rows () != cols ())
21136
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480 (*current_liboctave_error_handler) ("determinant requires square matrix");
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481
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482 octave_idx_type len = length ();
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483 for (octave_idx_type i = 0; i < len; i++)
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484 det *= elem (i, i);
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485
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486 return det;
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487 }
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488
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489 float
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490 FloatComplexDiagMatrix::rcond (void) const
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491 {
15448
0a0912a9ab6e Replace deprecated DiagArray2<T>::diag calls with DiagArray2<T>::extract_diag
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492 FloatColumnVector av = extract_diag (0).map<float> (std::abs);
18084
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493 float amx = av.max ();
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494 float amn = av.min ();
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495 return amx == 0 ? 0.0f : amn / amx;
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496 }
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497
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498 // i/o
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499
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500 std::ostream&
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501 operator << (std::ostream& os, const FloatComplexDiagMatrix& a)
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502 {
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503 FloatComplex ZERO (0.0);
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504 // int field_width = os.precision () + 7;
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505 for (octave_idx_type i = 0; i < a.rows (); i++)
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506 {
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507 for (octave_idx_type j = 0; j < a.cols (); j++)
10314
07ebe522dac2 untabify liboctave C++ sources
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508 {
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509 if (i == j)
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510 os << " " /* setw (field_width) */ << a.elem (i, i);
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511 else
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512 os << " " /* setw (field_width) */ << ZERO;
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513 }
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514 os << "\n";
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515 }
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516 return os;
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517 }