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annotate liboctave/fCDiagMatrix.cc @ 8710:739141cde75a ss-3-1-52

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fix typo in Array-f.cc
author Jaroslav Hajek <highegg@gmail.com>
date Mon, 09 Feb 2009 21:51:31 +0100
parents dbe67764e628
children 20dfb885f877
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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, 1995, 1996, 1997, 2000, 2001, 2002, 2003, 2004,
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5 2005, 2007 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 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 #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 <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 "mx-base.h"
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34 #include "mx-inlines.cc"
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35 #include "oct-cmplx.h"
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36
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37 // FloatComplex Diagonal Matrix class
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38
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39 FloatComplexDiagMatrix::FloatComplexDiagMatrix (const FloatDiagMatrix& a)
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40 : MDiagArray2<FloatComplex> (a.rows (), a.cols ())
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41 {
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42 for (octave_idx_type i = 0; i < length (); i++)
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43 elem (i, i) = a.elem (i, i);
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44 }
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45
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46 bool
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47 FloatComplexDiagMatrix::operator == (const FloatComplexDiagMatrix& a) const
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48 {
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49 if (rows () != a.rows () || cols () != a.cols ())
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50 return 0;
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51
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52 return mx_inline_equal (data (), a.data (), length ());
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53 }
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54
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55 bool
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56 FloatComplexDiagMatrix::operator != (const FloatComplexDiagMatrix& a) const
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57 {
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58 return !(*this == a);
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59 }
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60
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61 FloatComplexDiagMatrix&
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62 FloatComplexDiagMatrix::fill (float val)
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63 {
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64 for (octave_idx_type i = 0; i < length (); i++)
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65 elem (i, i) = val;
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66 return *this;
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67 }
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68
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69 FloatComplexDiagMatrix&
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70 FloatComplexDiagMatrix::fill (const FloatComplex& val)
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71 {
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72 for (octave_idx_type i = 0; i < length (); i++)
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73 elem (i, i) = val;
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74 return *this;
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75 }
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76
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77 FloatComplexDiagMatrix&
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78 FloatComplexDiagMatrix::fill (float val, octave_idx_type beg, octave_idx_type end)
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79 {
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80 if (beg < 0 || end >= length () || end < beg)
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81 {
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82 (*current_liboctave_error_handler) ("range error for fill");
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83 return *this;
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84 }
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85
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86 for (octave_idx_type i = beg; i <= end; i++)
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87 elem (i, i) = val;
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88
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89 return *this;
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90 }
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91
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92 FloatComplexDiagMatrix&
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93 FloatComplexDiagMatrix::fill (const FloatComplex& val, 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 {
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97 (*current_liboctave_error_handler) ("range error for fill");
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98 return *this;
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99 }
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100
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101 for (octave_idx_type i = beg; i <= end; i++)
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102 elem (i, i) = val;
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103
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104 return *this;
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105 }
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106
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107 FloatComplexDiagMatrix&
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108 FloatComplexDiagMatrix::fill (const FloatColumnVector& a)
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109 {
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110 octave_idx_type len = length ();
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111 if (a.length () != len)
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112 {
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113 (*current_liboctave_error_handler) ("range error for fill");
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114 return *this;
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115 }
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116
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117 for (octave_idx_type i = 0; i < len; i++)
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118 elem (i, i) = a.elem (i);
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119
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120 return *this;
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121 }
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122
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123 FloatComplexDiagMatrix&
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124 FloatComplexDiagMatrix::fill (const FloatComplexColumnVector& a)
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125 {
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126 octave_idx_type len = length ();
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127 if (a.length () != len)
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128 {
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129 (*current_liboctave_error_handler) ("range error for fill");
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130 return *this;
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131 }
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132
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133 for (octave_idx_type i = 0; i < len; i++)
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134 elem (i, i) = a.elem (i);
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135
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136 return *this;
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137 }
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138
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139 FloatComplexDiagMatrix&
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140 FloatComplexDiagMatrix::fill (const FloatRowVector& a)
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141 {
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142 octave_idx_type len = length ();
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143 if (a.length () != len)
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144 {
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145 (*current_liboctave_error_handler) ("range error for fill");
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146 return *this;
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147 }
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148
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149 for (octave_idx_type i = 0; i < len; i++)
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150 elem (i, i) = a.elem (i);
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151
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152 return *this;
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153 }
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154
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155 FloatComplexDiagMatrix&
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156 FloatComplexDiagMatrix::fill (const FloatComplexRowVector& a)
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157 {
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158 octave_idx_type len = length ();
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159 if (a.length () != len)
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160 {
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161 (*current_liboctave_error_handler) ("range error for fill");
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162 return *this;
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163 }
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164
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165 for (octave_idx_type i = 0; i < len; i++)
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166 elem (i, i) = a.elem (i);
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167
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168 return *this;
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169 }
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170
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171 FloatComplexDiagMatrix&
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172 FloatComplexDiagMatrix::fill (const FloatColumnVector& a, octave_idx_type beg)
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173 {
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174 octave_idx_type a_len = a.length ();
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175 if (beg < 0 || beg + a_len >= length ())
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176 {
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177 (*current_liboctave_error_handler) ("range error for fill");
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178 return *this;
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179 }
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180
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181 for (octave_idx_type i = 0; i < a_len; i++)
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182 elem (i+beg, i+beg) = a.elem (i);
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183
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184 return *this;
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185 }
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186
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187 FloatComplexDiagMatrix&
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188 FloatComplexDiagMatrix::fill (const FloatComplexColumnVector& a, octave_idx_type beg)
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189 {
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190 octave_idx_type a_len = a.length ();
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191 if (beg < 0 || beg + a_len >= length ())
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192 {
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193 (*current_liboctave_error_handler) ("range error for fill");
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194 return *this;
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195 }
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196
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197 for (octave_idx_type i = 0; i < a_len; i++)
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198 elem (i+beg, i+beg) = a.elem (i);
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199
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200 return *this;
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201 }
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202
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203 FloatComplexDiagMatrix&
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204 FloatComplexDiagMatrix::fill (const FloatRowVector& a, octave_idx_type beg)
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205 {
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206 octave_idx_type a_len = a.length ();
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207 if (beg < 0 || beg + a_len >= length ())
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208 {
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209 (*current_liboctave_error_handler) ("range error for fill");
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210 return *this;
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211 }
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212
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213 for (octave_idx_type i = 0; i < a_len; i++)
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214 elem (i+beg, i+beg) = a.elem (i);
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215
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216 return *this;
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217 }
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218
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219 FloatComplexDiagMatrix&
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220 FloatComplexDiagMatrix::fill (const FloatComplexRowVector& a, octave_idx_type beg)
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221 {
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222 octave_idx_type a_len = a.length ();
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223 if (beg < 0 || beg + a_len >= length ())
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224 {
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225 (*current_liboctave_error_handler) ("range error for fill");
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226 return *this;
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227 }
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228
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229 for (octave_idx_type i = 0; i < a_len; i++)
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230 elem (i+beg, i+beg) = a.elem (i);
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231
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232 return *this;
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233 }
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234
8366
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235 FloatDiagMatrix
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236 FloatComplexDiagMatrix::abs (void) const
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237 {
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238 FloatDiagMatrix retval (rows (), cols ());
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239 for (octave_idx_type i = 0; i < rows (); i++)
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240 retval(i, i) = std::abs (elem (i, i));
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241 return retval;
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242 }
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243
7789
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244 FloatComplexDiagMatrix
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245 conj (const FloatComplexDiagMatrix& a)
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246 {
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247 FloatComplexDiagMatrix retval;
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248 octave_idx_type a_len = a.length ();
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249 if (a_len > 0)
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250 retval = FloatComplexDiagMatrix (mx_inline_conj_dup (a.data (), a_len),
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251 a.rows (), a.cols ());
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252 return retval;
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253 }
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254
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255 // resize is the destructive analog for this one
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256
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257 FloatComplexMatrix
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258 FloatComplexDiagMatrix::extract (octave_idx_type r1, octave_idx_type c1, octave_idx_type r2, octave_idx_type c2) const
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259 {
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260 if (r1 > r2) { octave_idx_type tmp = r1; r1 = r2; r2 = tmp; }
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261 if (c1 > c2) { octave_idx_type tmp = c1; c1 = c2; c2 = tmp; }
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262
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263 octave_idx_type new_r = r2 - r1 + 1;
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264 octave_idx_type new_c = c2 - c1 + 1;
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265
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266 FloatComplexMatrix result (new_r, new_c);
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267
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268 for (octave_idx_type j = 0; j < new_c; j++)
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269 for (octave_idx_type i = 0; i < new_r; i++)
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270 result.elem (i, j) = elem (r1+i, c1+j);
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271
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272 return result;
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273 }
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274
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275 // extract row or column i.
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276
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277 FloatComplexRowVector
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278 FloatComplexDiagMatrix::row (octave_idx_type i) const
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279 {
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280 octave_idx_type r = rows ();
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281 octave_idx_type c = cols ();
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282 if (i < 0 || i >= r)
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283 {
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284 (*current_liboctave_error_handler) ("invalid row selection");
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285 return FloatComplexRowVector ();
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286 }
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287
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288 FloatComplexRowVector retval (c, 0.0);
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289 if (r <= c || (r > c && i < c))
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290 retval.elem (i) = elem (i, i);
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291
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292 return retval;
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293 }
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294
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295 FloatComplexRowVector
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296 FloatComplexDiagMatrix::row (char *s) const
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297 {
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298 if (! s)
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299 {
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300 (*current_liboctave_error_handler) ("invalid row selection");
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301 return FloatComplexRowVector ();
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302 }
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303
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304 char c = *s;
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305 if (c == 'f' || c == 'F')
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306 return row (static_cast<octave_idx_type>(0));
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307 else if (c == 'l' || c == 'L')
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308 return row (rows () - 1);
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309 else
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310 {
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311 (*current_liboctave_error_handler) ("invalid row selection");
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312 return FloatComplexRowVector ();
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313 }
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314 }
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315
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316 FloatComplexColumnVector
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317 FloatComplexDiagMatrix::column (octave_idx_type i) const
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318 {
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319 octave_idx_type r = rows ();
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320 octave_idx_type c = cols ();
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321 if (i < 0 || i >= c)
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diff changeset
322 {
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323 (*current_liboctave_error_handler) ("invalid column selection");
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324 return FloatComplexColumnVector ();
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325 }
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326
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327 FloatComplexColumnVector retval (r, 0.0);
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328 if (r >= c || (r < c && i < r))
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329 retval.elem (i) = elem (i, i);
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330
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331 return retval;
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332 }
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diff changeset
333
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diff changeset
334 FloatComplexColumnVector
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diff changeset
335 FloatComplexDiagMatrix::column (char *s) const
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diff changeset
336 {
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337 if (! s)
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diff changeset
338 {
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339 (*current_liboctave_error_handler) ("invalid column selection");
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340 return FloatComplexColumnVector ();
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341 }
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David Bateman <dbateman@free.fr>
parents:
diff changeset
342
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
343 char c = *s;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
344 if (c == 'f' || c == 'F')
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David Bateman <dbateman@free.fr>
parents:
diff changeset
345 return column (static_cast<octave_idx_type>(0));
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David Bateman <dbateman@free.fr>
parents:
diff changeset
346 else if (c == 'l' || c == 'L')
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David Bateman <dbateman@free.fr>
parents:
diff changeset
347 return column (cols () - 1);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
348 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
349 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
350 (*current_liboctave_error_handler) ("invalid column selection");
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
351 return FloatComplexColumnVector ();
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David Bateman <dbateman@free.fr>
parents:
diff changeset
352 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
353 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
354
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
355 FloatComplexDiagMatrix
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David Bateman <dbateman@free.fr>
parents:
diff changeset
356 FloatComplexDiagMatrix::inverse (void) const
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
357 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
358 int info;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
359 return inverse (info);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
360 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
361
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
362 FloatComplexDiagMatrix
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David Bateman <dbateman@free.fr>
parents:
diff changeset
363 FloatComplexDiagMatrix::inverse (int& info) const
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David Bateman <dbateman@free.fr>
parents:
diff changeset
364 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
365 octave_idx_type r = rows ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
366 octave_idx_type c = cols ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
367 if (r != c)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
368 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
369 (*current_liboctave_error_handler) ("inverse requires square matrix");
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
370 return FloatComplexDiagMatrix ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
371 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
372
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David Bateman <dbateman@free.fr>
parents:
diff changeset
373 FloatComplexDiagMatrix retval (r, c);
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David Bateman <dbateman@free.fr>
parents:
diff changeset
374
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David Bateman <dbateman@free.fr>
parents:
diff changeset
375 info = 0;
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David Bateman <dbateman@free.fr>
parents:
diff changeset
376 for (octave_idx_type i = 0; i < length (); i++)
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David Bateman <dbateman@free.fr>
parents:
diff changeset
377 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
378 if (elem (i, i) == static_cast<float> (0.0))
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
379 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
380 info = -1;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
381 return *this;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
382 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
383 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
384 retval.elem (i, i) = static_cast<float> (1.0) / elem (i, i);
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David Bateman <dbateman@free.fr>
parents:
diff changeset
385 }
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 return retval;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
388 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
389
8366
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
390 bool
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
391 FloatComplexDiagMatrix::all_elements_are_real (void) const
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
392 {
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
393 octave_idx_type len = length ();
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
394 for (octave_idx_type i = 0; i < len; i++)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
395 {
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
396 float ip = std::imag (elem (i, i));
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
397
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
398 if (ip != 0.0 || lo_ieee_signbit (ip))
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
399 return false;
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
400 }
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
401
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
402 return true;
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
403 }
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
404
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
405 // diagonal matrix by diagonal matrix -> diagonal matrix operations
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
406
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
407 FloatComplexDiagMatrix&
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
408 FloatComplexDiagMatrix::operator += (const FloatDiagMatrix& a)
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 octave_idx_type r = rows ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
411 octave_idx_type c = cols ();
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 octave_idx_type a_nr = a.rows ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
414 octave_idx_type a_nc = a.cols ();
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 if (r != a_nr || c != a_nc)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
417 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
418 gripe_nonconformant ("operator +=", r, c, a_nr, a_nc);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
419 return *this;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
420 }
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 (r == 0 || c == 0)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
423 return *this;
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 FloatComplex *d = fortran_vec (); // Ensures only one reference to my privates!
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
426
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
427 mx_inline_add2 (d, a.data (), length ());
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
428 return *this;
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
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
431 FloatComplexDiagMatrix
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
432 operator * (const FloatComplexDiagMatrix& a, const FloatDiagMatrix& b)
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 octave_idx_type a_nr = a.rows ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
435 octave_idx_type a_nc = a.cols ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
436
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
437 octave_idx_type b_nr = b.rows ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
438 octave_idx_type b_nc = b.cols ();
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 if (a_nc != b_nr)
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 gripe_nonconformant ("operator *", a_nr, a_nc, b_nr, b_nc);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
443 return FloatComplexDiagMatrix ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
444 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
445
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
446 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
447 return FloatComplexDiagMatrix (a_nr, a_nc, 0.0);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
448
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
449 FloatComplexDiagMatrix c (a_nr, b_nc);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
450
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
451 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
452
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
453 for (octave_idx_type i = 0; i < len; i++)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
454 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
455 FloatComplex a_element = a.elem (i, i);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
456 float b_element = b.elem (i, i);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
457
8380
dbe67764e628 fix & improve speed of diagonal matrix multiplication
Jaroslav Hajek <highegg@gmail.com>
parents: 8375
diff changeset
458 c.elem (i, i) = a_element * b_element;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
459 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
460
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
461 return c;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
462 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
463
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
464 FloatComplexDiagMatrix
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
465 operator * (const FloatDiagMatrix& a, const FloatComplexDiagMatrix& b)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
466 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
467 octave_idx_type a_nr = a.rows ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
468 octave_idx_type a_nc = a.cols ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
469
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
470 octave_idx_type b_nr = b.rows ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
471 octave_idx_type b_nc = b.cols ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
472
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
473 if (a_nc != b_nr)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
474 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
475 gripe_nonconformant ("operator *", a_nr, a_nc, b_nr, b_nc);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
476 return FloatComplexDiagMatrix ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
477 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
478
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
479 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
480 return FloatComplexDiagMatrix (a_nr, a_nc, 0.0);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
481
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
482 FloatComplexDiagMatrix c (a_nr, b_nc);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
483
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
484 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
485
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
486 for (octave_idx_type i = 0; i < len; i++)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
487 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
488 float a_element = a.elem (i, i);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
489 FloatComplex b_element = b.elem (i, i);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
490
8380
dbe67764e628 fix & improve speed of diagonal matrix multiplication
Jaroslav Hajek <highegg@gmail.com>
parents: 8375
diff changeset
491 c.elem (i, i) = a_element * b_element;
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
492 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
493
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
494 return c;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
495 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
496
8366
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
497 FloatComplexDiagMatrix
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
498 operator * (const FloatComplexDiagMatrix& a, const FloatComplexDiagMatrix& b)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
499 {
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
500 octave_idx_type a_nr = a.rows ();
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
501 octave_idx_type a_nc = a.cols ();
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
502
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
503 octave_idx_type b_nr = b.rows ();
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
504 octave_idx_type b_nc = b.cols ();
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
505
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
506 if (a_nc != b_nr)
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
507 {
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
508 gripe_nonconformant ("operator *", a_nr, a_nc, b_nr, b_nc);
8b1a2555c4e2 implement diagonal matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 7789
diff changeset
509 return FloatComplexDiagMatrix ();
8b1a2555c4e2 implement diagonal matrix objects
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510 }
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parents: 7789
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511
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512 if (a_nr == 0 || a_nc == 0 || b_nc == 0)
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513 return FloatComplexDiagMatrix (a_nr, a_nc, 0.0);
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514
8b1a2555c4e2 implement diagonal matrix objects
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515 FloatComplexDiagMatrix c (a_nr, b_nc);
8b1a2555c4e2 implement diagonal matrix objects
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516
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517 octave_idx_type len = a_nr < b_nc ? a_nr : b_nc;
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518
8b1a2555c4e2 implement diagonal matrix objects
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519 for (octave_idx_type i = 0; i < len; i++)
8b1a2555c4e2 implement diagonal matrix objects
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520 {
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521 FloatComplex a_element = a.elem (i, i);
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522 FloatComplex b_element = b.elem (i, i);
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523
8380
dbe67764e628 fix & improve speed of diagonal matrix multiplication
Jaroslav Hajek <highegg@gmail.com>
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524 c.elem (i, i) = a_element * b_element;
8366
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525 }
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526
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527 return c;
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528 }
8b1a2555c4e2 implement diagonal matrix objects
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529
7789
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
530 // other operations
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
531
8371
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532 FloatComplexDET
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533 FloatComplexDiagMatrix::determinant (void) const
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534 {
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535 FloatComplexDET det (1.0f);
c3f7e2549abb make det & inv aware of diagonal & permutation matrices
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536 if (rows () != cols ())
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537 {
c3f7e2549abb make det & inv aware of diagonal & permutation matrices
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538 (*current_liboctave_error_handler) ("determinant requires square matrix");
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parents: 8366
diff changeset
539 det = FloatComplexDET (0.0);
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540 }
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Jaroslav Hajek <highegg@gmail.com>
parents: 8366
diff changeset
541 else
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Jaroslav Hajek <highegg@gmail.com>
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diff changeset
542 {
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543 octave_idx_type len = length ();
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544 for (octave_idx_type i = 0; i < len; i++)
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545 det *= elem (i, i);
c3f7e2549abb make det & inv aware of diagonal & permutation matrices
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546 }
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547
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parents: 8366
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548 return det;
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Jaroslav Hajek <highegg@gmail.com>
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549 }
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parents: 8366
diff changeset
550
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551 float
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552 FloatComplexDiagMatrix::rcond (void) const
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553 {
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554 FloatColumnVector av = diag (0).map (std::abs);
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parents: 8366
diff changeset
555 float amx = av.max (), amn = av.min ();
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parents: 8366
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556 return amx == 0 ? 0.0f : amn / amx;
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Jaroslav Hajek <highegg@gmail.com>
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557 }
c3f7e2549abb make det & inv aware of diagonal & permutation matrices
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558
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82be108cc558 First attempt at single precision tyeps
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parents:
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559 // i/o
82be108cc558 First attempt at single precision tyeps
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parents:
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560
82be108cc558 First attempt at single precision tyeps
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561 std::ostream&
82be108cc558 First attempt at single precision tyeps
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parents:
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562 operator << (std::ostream& os, const FloatComplexDiagMatrix& a)
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parents:
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563 {
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564 FloatComplex ZERO (0.0);
82be108cc558 First attempt at single precision tyeps
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565 // int field_width = os.precision () + 7;
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566 for (octave_idx_type i = 0; i < a.rows (); i++)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
567 {
82be108cc558 First attempt at single precision tyeps
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parents:
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568 for (octave_idx_type j = 0; j < a.cols (); j++)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
569 {
82be108cc558 First attempt at single precision tyeps
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parents:
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570 if (i == j)
82be108cc558 First attempt at single precision tyeps
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571 os << " " /* setw (field_width) */ << a.elem (i, i);
82be108cc558 First attempt at single precision tyeps
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parents:
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572 else
82be108cc558 First attempt at single precision tyeps
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573 os << " " /* setw (field_width) */ << ZERO;
82be108cc558 First attempt at single precision tyeps
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574 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
575 os << "\n";
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576 }
82be108cc558 First attempt at single precision tyeps
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577 return os;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
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578 }
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parents:
diff changeset
579
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
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580 /*
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
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581 ;;; Local Variables: ***
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David Bateman <dbateman@free.fr>
parents:
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582 ;;; mode: C++ ***
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
583 ;;; End: ***
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
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584 */