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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 "lo-ieee.h" |
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32 #include "mx-base.h" |
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33 |
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34 #include "gripes.h" |
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35 #include "oct-obj.h" |
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36 #include "ops.h" |
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37 #include "ov-complex.h" |
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38 #include "ov-cx-mat.h" |
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39 #include "ov-re-mat.h" |
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40 #include "ov-scalar.h" |
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41 #include "pr-output.h" |
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42 |
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43 octave_allocator |
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44 octave_complex_matrix::allocator (sizeof (octave_complex_matrix)); |
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45 |
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46 int |
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47 octave_complex_matrix::t_id (-1); |
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48 |
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49 const string |
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50 octave_complex_matrix::t_name ("complex matrix"); |
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51 |
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52 octave_complex_matrix::octave_complex_matrix (const ComplexRowVector& v, |
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53 int pcv) |
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54 : octave_base_value (), |
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55 matrix ((pcv < 0 && Vprefer_column_vectors) || pcv |
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56 ? ComplexMatrix (v.transpose ()) : ComplexMatrix (v)) { } |
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57 |
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58 octave_complex_matrix::octave_complex_matrix (const ComplexColumnVector& v, |
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59 int pcv) |
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60 : octave_base_value (), |
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61 matrix ((pcv < 0 && Vprefer_column_vectors) || pcv |
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62 ? ComplexMatrix (v) : ComplexMatrix (v.transpose ())) { } |
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63 |
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64 octave_value * |
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65 octave_complex_matrix::try_narrowing_conversion (void) |
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66 { |
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67 octave_value *retval = 0; |
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68 |
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69 int nr = matrix.rows (); |
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70 int nc = matrix.cols (); |
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71 |
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72 if (nr == 1 && nc == 1) |
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73 { |
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74 Complex c = matrix (0, 0); |
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75 |
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76 if (imag (c) == 0.0) |
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77 retval = new octave_scalar (::real (c)); |
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78 else |
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79 retval = new octave_complex (c); |
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80 } |
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81 else if (nr == 0 && nc == 0) |
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82 retval = new octave_matrix (Matrix ()); |
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83 else if (matrix.all_elements_are_real ()) |
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84 retval = new octave_matrix (::real (matrix)); |
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85 |
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86 return retval; |
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87 } |
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88 |
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89 octave_value |
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90 octave_complex_matrix::index (const octave_value_list& idx) const |
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91 { |
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92 octave_value retval; |
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93 |
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94 int len = idx.length (); |
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95 |
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96 switch (len) |
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97 { |
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98 case 2: |
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99 { |
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100 idx_vector i = idx (0).index_vector (); |
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101 idx_vector j = idx (1).index_vector (); |
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102 |
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103 retval = ComplexMatrix (matrix.index (i, j)); |
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104 } |
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105 break; |
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106 |
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107 case 1: |
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108 { |
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109 idx_vector i = idx (0).index_vector (); |
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110 |
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111 retval = ComplexMatrix (matrix.index (i)); |
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112 } |
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113 break; |
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114 |
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115 default: |
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116 error ("invalid number of indices (%d) for complex matrix value", len); |
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117 break; |
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118 } |
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119 |
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120 return retval; |
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121 } |
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122 |
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123 extern void assign (Array2<Complex>&, const Array2<Complex>&); |
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124 |
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125 void |
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126 octave_complex_matrix::assign (const octave_value_list& idx, |
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127 const ComplexMatrix& rhs) |
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128 { |
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129 int len = idx.length (); |
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130 |
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131 switch (len) |
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132 { |
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133 case 2: |
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134 { |
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135 idx_vector i = idx (0).index_vector (); |
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136 idx_vector j = idx (1).index_vector (); |
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137 |
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138 matrix.set_index (i); |
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139 matrix.set_index (j); |
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140 |
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141 ::assign (matrix, rhs); |
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142 } |
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143 break; |
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144 |
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145 case 1: |
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146 { |
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147 idx_vector i = idx (0).index_vector (); |
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148 |
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149 matrix.set_index (i); |
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150 |
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151 ::assign (matrix, rhs); |
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152 } |
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153 break; |
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154 |
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155 default: |
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156 error ("invalid number of indices (%d) for indexed matrix assignment", |
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157 len); |
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158 break; |
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159 } |
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160 } |
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161 |
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162 extern void assign (Array2<Complex>&, const Array2<double>&); |
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163 |
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164 void |
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165 octave_complex_matrix::assign (const octave_value_list& idx, |
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166 const Matrix& rhs) |
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167 { |
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168 int len = idx.length (); |
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169 |
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170 switch (len) |
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171 { |
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172 case 2: |
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173 { |
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174 idx_vector i = idx (0).index_vector (); |
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175 idx_vector j = idx (1).index_vector (); |
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176 |
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177 matrix.set_index (i); |
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178 matrix.set_index (j); |
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179 |
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180 ::assign (matrix, rhs); |
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181 } |
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182 break; |
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183 |
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184 case 1: |
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185 { |
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186 idx_vector i = idx (0).index_vector (); |
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187 |
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188 matrix.set_index (i); |
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189 |
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190 ::assign (matrix, rhs); |
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191 } |
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192 break; |
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193 |
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194 default: |
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195 error ("invalid number of indices (%d) for indexed matrix assignment", |
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196 len); |
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197 break; |
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198 } |
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199 } |
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200 |
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201 bool |
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202 octave_complex_matrix::valid_as_scalar_index (void) const |
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203 { |
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204 // XXX FIXME XXX |
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205 return false; |
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206 } |
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207 |
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208 bool |
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209 octave_complex_matrix::valid_as_zero_index (void) const |
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210 { |
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211 // XXX FIXME XXX |
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212 return false; |
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213 } |
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214 |
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215 bool |
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216 octave_complex_matrix::is_true (void) const |
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217 { |
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218 bool retval = false; |
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219 |
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220 if (rows () == 0 || columns () == 0) |
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221 { |
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222 int flag = Vpropagate_empty_matrices; |
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223 |
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224 if (flag < 0) |
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225 warning ("empty matrix used in conditional expression"); |
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226 else if (flag == 0) |
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227 error ("empty matrix used in conditional expression"); |
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228 } |
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229 else |
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230 { |
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231 Matrix m = (matrix.all ()) . all (); |
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232 |
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233 retval = (m.rows () == 1 && m.columns () == 1 && m (0, 0) != 0.0); |
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234 } |
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235 |
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236 return retval; |
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237 } |
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238 |
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239 double |
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240 octave_complex_matrix::double_value (bool force_conversion) const |
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241 { |
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242 double retval = octave_NaN; |
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243 |
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244 int flag = force_conversion; |
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245 |
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246 if (! flag) |
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247 flag = Vok_to_lose_imaginary_part; |
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248 |
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249 if (flag < 0) |
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250 gripe_implicit_conversion ("complex matrix", "real scalar"); |
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251 |
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252 if (flag) |
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253 { |
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254 if ((rows () == 1 && columns () == 1) |
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255 || (Vdo_fortran_indexing && rows () > 0 && columns () > 0)) |
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256 retval = ::real (matrix (0, 0)); |
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257 else |
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258 gripe_invalid_conversion ("complex matrix", "real scalar"); |
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259 } |
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260 else |
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261 gripe_invalid_conversion ("complex matrix", "real scalar"); |
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262 |
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263 return retval; |
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264 } |
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265 |
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266 Matrix |
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267 octave_complex_matrix::matrix_value (bool force_conversion) const |
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268 { |
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269 Matrix retval; |
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270 |
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271 int flag = force_conversion; |
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272 |
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273 if (! flag) |
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274 flag = Vok_to_lose_imaginary_part; |
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275 |
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276 if (flag < 0) |
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277 gripe_implicit_conversion ("complex matrix", "real matrix"); |
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278 |
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279 if (flag) |
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280 retval = ::real (matrix); |
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281 else |
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282 gripe_invalid_conversion ("complex matrix", "real matrix"); |
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283 |
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284 return retval; |
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285 } |
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286 |
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287 Complex |
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288 octave_complex_matrix::complex_value (bool) const |
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289 { |
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290 Complex retval (octave_NaN, octave_NaN); |
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291 |
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292 if ((rows () == 1 && columns () == 1) |
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293 || (Vdo_fortran_indexing && rows () > 0 && columns () > 0)) |
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294 retval = matrix (0, 0); |
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295 else |
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296 gripe_invalid_conversion ("complex matrix", "complex scalar"); |
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297 |
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298 return retval; |
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299 } |
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300 |
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301 ComplexMatrix |
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302 octave_complex_matrix::complex_matrix_value (bool) const |
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303 { |
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304 return matrix; |
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305 } |
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306 |
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307 void |
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308 octave_complex_matrix::print (ostream& os, bool pr_as_read_syntax) |
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309 { |
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310 octave_print_internal (os, matrix, pr_as_read_syntax, struct_indent); |
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311 } |
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312 |
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313 /* |
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314 ;;; Local Variables: *** |
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315 ;;; mode: C++ *** |
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316 ;;; End: *** |
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317 */ |
