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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if defined (__GNUG__) |
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24 #pragma implementation |
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25 #endif |
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26 |
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27 #ifdef HAVE_CONFIG_H |
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28 #include <config.h> |
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29 #endif |
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30 |
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31 #include <iostream.h> |
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32 |
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33 #include "lo-ieee.h" |
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34 #include "mx-base.h" |
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35 |
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36 #include "gripes.h" |
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37 #include "oct-obj.h" |
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38 #include "ops.h" |
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39 #include "ov-complex.h" |
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40 #include "ov-cx-mat.h" |
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41 #include "ov-re-mat.h" |
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42 #include "ov-scalar.h" |
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43 #include "pr-output.h" |
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44 |
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45 octave_allocator |
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46 octave_complex_matrix::allocator (sizeof (octave_complex_matrix)); |
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47 |
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48 int |
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49 octave_complex_matrix::t_id (-1); |
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50 |
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51 const string |
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52 octave_complex_matrix::t_name ("complex matrix"); |
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53 |
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54 octave_complex_matrix::octave_complex_matrix (const ComplexRowVector& v, |
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55 int pcv) |
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56 : octave_base_value (), |
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57 matrix ((pcv < 0 && Vprefer_column_vectors) || pcv |
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58 ? ComplexMatrix (v.transpose ()) : ComplexMatrix (v)) { } |
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59 |
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60 octave_complex_matrix::octave_complex_matrix (const ComplexColumnVector& v, |
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61 int pcv) |
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62 : octave_base_value (), |
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63 matrix ((pcv < 0 && Vprefer_column_vectors) || pcv |
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64 ? ComplexMatrix (v) : ComplexMatrix (v.transpose ())) { } |
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65 |
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66 octave_value * |
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67 octave_complex_matrix::try_narrowing_conversion (void) |
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68 { |
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69 octave_value *retval = 0; |
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70 |
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71 int nr = matrix.rows (); |
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72 int nc = matrix.cols (); |
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73 |
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74 if (nr == 1 && nc == 1) |
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75 { |
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76 Complex c = matrix (0, 0); |
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77 |
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78 if (imag (c) == 0.0) |
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79 retval = new octave_scalar (::real (c)); |
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80 else |
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81 retval = new octave_complex (c); |
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82 } |
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83 else if (nr == 0 && nc == 0) |
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84 retval = new octave_matrix (Matrix ()); |
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85 else if (matrix.all_elements_are_real ()) |
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86 retval = new octave_matrix (::real (matrix)); |
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87 |
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88 return retval; |
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89 } |
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90 |
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91 octave_value |
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92 octave_complex_matrix::do_index_op (const octave_value_list& idx) const |
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93 { |
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94 octave_value retval; |
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95 |
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96 int len = idx.length (); |
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97 |
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98 switch (len) |
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99 { |
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100 case 2: |
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101 { |
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102 idx_vector i = idx (0).index_vector (); |
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103 idx_vector j = idx (1).index_vector (); |
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104 |
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105 retval = ComplexMatrix (matrix.index (i, j)); |
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106 } |
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107 break; |
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108 |
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109 case 1: |
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110 { |
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111 idx_vector i = idx (0).index_vector (); |
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112 |
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113 retval = ComplexMatrix (matrix.index (i)); |
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114 } |
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115 break; |
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116 |
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117 default: |
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118 error ("invalid number of indices (%d) for complex matrix value", len); |
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119 break; |
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120 } |
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121 |
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122 return retval; |
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123 } |
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124 |
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125 extern void assign (Array2<Complex>&, const Array2<Complex>&); |
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126 |
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127 void |
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128 octave_complex_matrix::assign (const octave_value_list& idx, |
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129 const ComplexMatrix& rhs) |
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130 { |
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131 int len = idx.length (); |
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132 |
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133 switch (len) |
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134 { |
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135 case 2: |
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136 { |
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137 idx_vector i = idx (0).index_vector (); |
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138 idx_vector j = idx (1).index_vector (); |
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139 |
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140 matrix.set_index (i); |
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141 matrix.set_index (j); |
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142 |
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143 ::assign (matrix, rhs); |
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144 } |
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145 break; |
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146 |
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147 case 1: |
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148 { |
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149 idx_vector i = idx (0).index_vector (); |
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150 |
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151 matrix.set_index (i); |
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152 |
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153 ::assign (matrix, rhs); |
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154 } |
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155 break; |
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156 |
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157 default: |
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158 error ("invalid number of indices (%d) for indexed matrix assignment", |
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159 len); |
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160 break; |
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161 } |
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162 } |
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163 |
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164 extern void assign (Array2<Complex>&, const Array2<double>&); |
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165 |
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166 void |
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167 octave_complex_matrix::assign (const octave_value_list& idx, |
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168 const Matrix& rhs) |
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169 { |
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170 int len = idx.length (); |
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171 |
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172 switch (len) |
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173 { |
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174 case 2: |
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175 { |
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176 idx_vector i = idx (0).index_vector (); |
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177 idx_vector j = idx (1).index_vector (); |
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178 |
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179 matrix.set_index (i); |
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180 matrix.set_index (j); |
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181 |
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182 ::assign (matrix, rhs); |
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183 } |
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184 break; |
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185 |
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186 case 1: |
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187 { |
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188 idx_vector i = idx (0).index_vector (); |
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189 |
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190 matrix.set_index (i); |
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191 |
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192 ::assign (matrix, rhs); |
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193 } |
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194 break; |
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195 |
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196 default: |
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197 error ("invalid number of indices (%d) for indexed matrix assignment", |
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198 len); |
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199 break; |
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200 } |
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201 } |
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202 |
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203 bool |
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204 octave_complex_matrix::valid_as_scalar_index (void) const |
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205 { |
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206 // XXX FIXME XXX |
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207 return false; |
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208 } |
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209 |
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210 bool |
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211 octave_complex_matrix::valid_as_zero_index (void) const |
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212 { |
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213 // XXX FIXME XXX |
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214 return false; |
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215 } |
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216 |
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217 bool |
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218 octave_complex_matrix::is_true (void) const |
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219 { |
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220 bool retval = false; |
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221 |
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222 if (rows () == 0 || columns () == 0) |
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223 { |
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224 int flag = Vpropagate_empty_matrices; |
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225 |
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226 if (flag < 0) |
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227 warning ("empty matrix used in conditional expression"); |
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228 else if (flag == 0) |
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229 error ("empty matrix used in conditional expression"); |
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230 } |
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231 else |
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232 { |
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233 Matrix m = (matrix.all ()) . all (); |
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234 |
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235 retval = (m.rows () == 1 && m.columns () == 1 && m (0, 0) != 0.0); |
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236 } |
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237 |
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238 return retval; |
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239 } |
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240 |
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241 double |
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242 octave_complex_matrix::double_value (bool force_conversion) const |
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243 { |
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244 double retval = octave_NaN; |
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245 |
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246 int flag = force_conversion; |
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247 |
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248 if (! flag) |
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249 flag = Vok_to_lose_imaginary_part; |
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250 |
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251 if (flag < 0) |
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252 gripe_implicit_conversion ("complex matrix", "real scalar"); |
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253 |
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254 if (flag) |
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255 { |
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256 if ((rows () == 1 && columns () == 1) |
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257 || (Vdo_fortran_indexing && rows () > 0 && columns () > 0)) |
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258 retval = ::real (matrix (0, 0)); |
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259 else |
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260 gripe_invalid_conversion ("complex matrix", "real scalar"); |
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261 } |
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262 else |
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263 gripe_invalid_conversion ("complex matrix", "real scalar"); |
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264 |
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265 return retval; |
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266 } |
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267 |
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268 Matrix |
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269 octave_complex_matrix::matrix_value (bool force_conversion) const |
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270 { |
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271 Matrix retval; |
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272 |
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273 int flag = force_conversion; |
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274 |
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275 if (! flag) |
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276 flag = Vok_to_lose_imaginary_part; |
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277 |
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278 if (flag < 0) |
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279 gripe_implicit_conversion ("complex matrix", "real matrix"); |
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280 |
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281 if (flag) |
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282 retval = ::real (matrix); |
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283 else |
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284 gripe_invalid_conversion ("complex matrix", "real matrix"); |
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285 |
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286 return retval; |
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287 } |
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288 |
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289 Complex |
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290 octave_complex_matrix::complex_value (bool) const |
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291 { |
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292 Complex retval (octave_NaN, octave_NaN); |
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293 |
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294 if ((rows () == 1 && columns () == 1) |
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295 || (Vdo_fortran_indexing && rows () > 0 && columns () > 0)) |
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296 retval = matrix (0, 0); |
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297 else |
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298 gripe_invalid_conversion ("complex matrix", "complex scalar"); |
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299 |
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300 return retval; |
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301 } |
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302 |
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303 ComplexMatrix |
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304 octave_complex_matrix::complex_matrix_value (bool) const |
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305 { |
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306 return matrix; |
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307 } |
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308 |
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309 void |
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310 octave_complex_matrix::print (ostream& os, bool pr_as_read_syntax) const |
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311 { |
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312 print_raw (os, pr_as_read_syntax); |
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313 newline (os); |
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314 } |
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315 |
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316 void |
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317 octave_complex_matrix::print_raw (ostream& os, bool pr_as_read_syntax) const |
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318 { |
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319 octave_print_internal (os, matrix, pr_as_read_syntax, |
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320 current_print_indent_level ()); |
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321 } |
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322 |
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323 bool |
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324 octave_complex_matrix::print_name_tag (ostream& os, const string& name) const |
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325 { |
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326 bool retval = false; |
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327 |
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328 int nr = rows (); |
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329 int nc = columns (); |
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330 |
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331 indent (os); |
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332 |
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333 if (nr == 1 && nc == 1 || (nr == 0 || nc == 0)) |
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334 os << name << " = "; |
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335 else |
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336 { |
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337 os << name << " ="; |
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338 newline (os); |
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339 newline (os); |
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340 retval = true; |
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341 } |
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342 |
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343 return retval; |
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344 } |
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345 |
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346 /* |
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347 ;;; Local Variables: *** |
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348 ;;; mode: C++ *** |
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349 ;;; End: *** |
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350 */ |
