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annotate liboctave/array/fCRowVector.cc @ 25237:ca022a8c4015

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linspace: handle ranges with equal Inf endpoints (bug #53489) * CMatrix.cc (ComplexMatrix::linspace): Change delta calculation to yield 0 if endpoints are the same, otherwise calculate delta as normal. * CRowVector.cc (ComplexRowVector::linspace): Likewise. * dMatrix.cc (Matrix::linspace): Likewise. * dRowVector.cc (RowVector::linspace): Likewise. * fCMatrix.cc (FloatComplexMatrix::linspace): Likewise. * fCRowVector.cc (FloatComplexRowVector::linspace): Likewise. * fMatrix.cc (FloatMatrix::linspace): Likewise. * fRowVector.cc (FloatRowVector::linspace): Likewise. * data.cc (Flinspace): Added Matlab compatibility tests. * logspace.m: Added same tests as in linspace containing Inf in endpoints.
author Maor Shutman <maorus12@gmail.com>
date Fri, 06 Apr 2018 20:25:05 +0300
parents 6652d3823428
children cb1606f78f6b
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1 /*
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2
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3 Copyright (C) 1994-2018 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
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9 the Free Software Foundation, either version 3 of the License, or
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10 (at your option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License 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, see
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19 <https://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if defined (HAVE_CONFIG_H)
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24 # include "config.h"
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25 #endif
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26
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27 #include <iostream>
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28
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29 #include "Array-util.h"
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30 #include "functor.h"
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31 #include "lo-blas-proto.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 Row Vector class
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38
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39 bool
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40 FloatComplexRowVector::operator == (const FloatComplexRowVector& a) const
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41 {
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42 octave_idx_type len = numel ();
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43 if (len != a.numel ())
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44 return 0;
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45 return mx_inline_equal (len, data (), a.data ());
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46 }
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47
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48 bool
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49 FloatComplexRowVector::operator != (const FloatComplexRowVector& a) const
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50 {
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51 return !(*this == a);
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52 }
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53
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54 // destructive insert/delete/reorder operations
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55
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56 FloatComplexRowVector&
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57 FloatComplexRowVector::insert (const FloatRowVector& a, octave_idx_type c)
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58 {
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59 octave_idx_type a_len = a.numel ();
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60
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61 if (c < 0 || c + a_len > numel ())
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62 (*current_liboctave_error_handler) ("range error for insert");
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63
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64 if (a_len > 0)
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65 {
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66 make_unique ();
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67
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68 for (octave_idx_type i = 0; i < a_len; i++)
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69 xelem (c+i) = a.elem (i);
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70 }
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71
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72 return *this;
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73 }
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74
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75 FloatComplexRowVector&
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76 FloatComplexRowVector::insert (const FloatComplexRowVector& a,
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77 octave_idx_type c)
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78 {
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79 octave_idx_type a_len = a.numel ();
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80
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81 if (c < 0 || c + a_len > numel ())
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82 (*current_liboctave_error_handler) ("range error for insert");
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83
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84 if (a_len > 0)
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85 {
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86 make_unique ();
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87
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88 for (octave_idx_type i = 0; i < a_len; i++)
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89 xelem (c+i) = a.elem (i);
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90 }
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91
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92 return *this;
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93 }
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94
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95 FloatComplexRowVector&
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96 FloatComplexRowVector::fill (float val)
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97 {
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98 octave_idx_type len = numel ();
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99
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100 if (len > 0)
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101 {
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102 make_unique ();
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103
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104 for (octave_idx_type i = 0; i < len; i++)
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105 xelem (i) = val;
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106 }
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107
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108 return *this;
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109 }
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110
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111 FloatComplexRowVector&
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112 FloatComplexRowVector::fill (const FloatComplex& val)
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113 {
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114 octave_idx_type len = numel ();
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115
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116 if (len > 0)
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117 {
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118 make_unique ();
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119
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120 for (octave_idx_type i = 0; i < len; i++)
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121 xelem (i) = val;
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122 }
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123
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124 return *this;
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125 }
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126
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127 FloatComplexRowVector&
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128 FloatComplexRowVector::fill (float val, octave_idx_type c1, octave_idx_type c2)
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129 {
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130 octave_idx_type len = numel ();
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131
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132 if (c1 < 0 || c2 < 0 || c1 >= len || c2 >= len)
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133 (*current_liboctave_error_handler) ("range error for fill");
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134
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135 if (c1 > c2) { std::swap (c1, c2); }
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136
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137 if (c2 >= c1)
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138 {
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139 make_unique ();
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140
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141 for (octave_idx_type i = c1; i <= c2; i++)
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142 xelem (i) = val;
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143 }
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144
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145 return *this;
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146 }
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147
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148 FloatComplexRowVector&
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149 FloatComplexRowVector::fill (const FloatComplex& val,
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150 octave_idx_type c1, octave_idx_type c2)
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151 {
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152 octave_idx_type len = numel ();
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153
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154 if (c1 < 0 || c2 < 0 || c1 >= len || c2 >= len)
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155 (*current_liboctave_error_handler) ("range error for fill");
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156
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157 if (c1 > c2) { std::swap (c1, c2); }
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158
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159 if (c2 >= c1)
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160 {
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161 make_unique ();
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162
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163 for (octave_idx_type i = c1; i <= c2; i++)
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164 xelem (i) = val;
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165 }
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166
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167 return *this;
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168 }
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169
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170 FloatComplexRowVector
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171 FloatComplexRowVector::append (const FloatRowVector& a) const
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172 {
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173 octave_idx_type len = numel ();
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174 octave_idx_type nc_insert = len;
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175 FloatComplexRowVector retval (len + a.numel ());
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176 retval.insert (*this, 0);
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177 retval.insert (a, nc_insert);
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178 return retval;
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179 }
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180
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181 FloatComplexRowVector
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182 FloatComplexRowVector::append (const FloatComplexRowVector& a) const
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183 {
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184 octave_idx_type len = numel ();
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185 octave_idx_type nc_insert = len;
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186 FloatComplexRowVector retval (len + a.numel ());
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187 retval.insert (*this, 0);
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188 retval.insert (a, nc_insert);
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189 return retval;
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190 }
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191
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192 FloatComplexColumnVector
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193 FloatComplexRowVector::hermitian (void) const
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194 {
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195 return MArray<FloatComplex>::hermitian (std::conj);
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196 }
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197
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198 FloatComplexColumnVector
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199 FloatComplexRowVector::transpose (void) const
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200 {
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201 return MArray<FloatComplex>::transpose ();
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202 }
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203
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204 FloatComplexRowVector
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205 conj (const FloatComplexRowVector& a)
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206 {
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207 return do_mx_unary_map<FloatComplex, FloatComplex, std::conj<float>> (a);
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208 }
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209
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210 // resize is the destructive equivalent for this one
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211
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212 FloatComplexRowVector
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213 FloatComplexRowVector::extract (octave_idx_type c1, octave_idx_type c2) const
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214 {
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215 if (c1 > c2) { std::swap (c1, c2); }
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216
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217 octave_idx_type new_c = c2 - c1 + 1;
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218
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219 FloatComplexRowVector result (new_c);
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220
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221 for (octave_idx_type i = 0; i < new_c; i++)
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222 result.elem (i) = elem (c1+i);
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223
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224 return result;
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225 }
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226
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227 FloatComplexRowVector
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228 FloatComplexRowVector::extract_n (octave_idx_type r1, octave_idx_type n) const
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229 {
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230 FloatComplexRowVector result (n);
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231
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232 for (octave_idx_type i = 0; i < n; i++)
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233 result.elem (i) = elem (r1+i);
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234
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235 return result;
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236 }
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237
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238 // row vector by row vector -> row vector operations
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239
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240 FloatComplexRowVector&
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241 FloatComplexRowVector::operator += (const FloatRowVector& a)
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242 {
20232
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243 octave_idx_type len = numel ();
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244
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245 octave_idx_type a_len = a.numel ();
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246
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247 if (len != a_len)
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248 octave::err_nonconformant ("operator +=", len, a_len);
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249
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250 if (len == 0)
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251 return *this;
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252
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253 FloatComplex *d = fortran_vec (); // Ensures only 1 reference to my privates!
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254
9550
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255 mx_inline_add2 (len, d, a.data ());
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256 return *this;
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257 }
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258
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259 FloatComplexRowVector&
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260 FloatComplexRowVector::operator -= (const FloatRowVector& a)
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261 {
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262 octave_idx_type len = numel ();
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263
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264 octave_idx_type a_len = a.numel ();
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265
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266 if (len != a_len)
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267 octave::err_nonconformant ("operator -=", len, a_len);
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268
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269 if (len == 0)
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270 return *this;
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271
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272 FloatComplex *d = fortran_vec (); // Ensures only 1 reference to my privates!
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273
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274 mx_inline_sub2 (len, d, a.data ());
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275 return *this;
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276 }
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277
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278 // row vector by matrix -> row vector
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279
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280 FloatComplexRowVector
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281 operator * (const FloatComplexRowVector& v, const FloatComplexMatrix& a)
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282 {
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283 FloatComplexRowVector retval;
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284
22988
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285 F77_INT len = octave::to_f77_int (v.numel ());
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286
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287 F77_INT a_nr = octave::to_f77_int (a.rows ());
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288 F77_INT a_nc = octave::to_f77_int (a.cols ());
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289
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290 if (a_nr != len)
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291 octave::err_nonconformant ("operator *", 1, len, a_nr, a_nc);
21120
499b851fbfae Replace pattern if/err_XXX/else/code with if/err_XXX/ code.
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292
499b851fbfae Replace pattern if/err_XXX/else/code with if/err_XXX/ code.
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293 if (len == 0)
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294 retval.resize (a_nc, 0.0);
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295 else
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296 {
21120
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297 // Transpose A to form A'*x == (x'*A)'
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298
22981
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diff changeset
299 F77_INT ld = a_nr;
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300
21120
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301 retval.resize (a_nc);
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302 FloatComplex *y = retval.fortran_vec ();
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303
21120
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304 F77_XFCN (cgemv, CGEMV, (F77_CONST_CHAR_ARG2 ("T", 1),
22135
407c66ae1e20 reduce warnings from GCC's link-time optimization feature (bug #48531)
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parents: 22133
diff changeset
305 a_nr, a_nc, 1.0, F77_CONST_CMPLX_ARG (a.data ()),
407c66ae1e20 reduce warnings from GCC's link-time optimization feature (bug #48531)
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parents: 22133
diff changeset
306 ld, F77_CONST_CMPLX_ARG (v.data ()), 1, 0.0, F77_CMPLX_ARG (y), 1
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307 F77_CHAR_ARG_LEN (1)));
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308 }
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309
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310 return retval;
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311 }
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312
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313 FloatComplexRowVector
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parents:
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314 operator * (const FloatRowVector& v, const FloatComplexMatrix& a)
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315 {
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316 FloatComplexRowVector tmp (v);
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317 return tmp * a;
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318 }
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319
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320 // other operations
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321
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322 FloatComplex
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323 FloatComplexRowVector::min (void) const
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324 {
20232
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 19697
diff changeset
325 octave_idx_type len = numel ();
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326 if (len == 0)
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327 return FloatComplex (0.0);
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328
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329 FloatComplex res = elem (0);
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330 float absres = std::abs (res);
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331
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332 for (octave_idx_type i = 1; i < len; i++)
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333 if (std::abs (elem (i)) < absres)
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parents:
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334 {
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10158
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335 res = elem (i);
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parents: 10158
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336 absres = std::abs (res);
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337 }
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338
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339 return res;
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340 }
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341
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342 FloatComplex
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343 FloatComplexRowVector::max (void) const
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344 {
20232
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 19697
diff changeset
345 octave_idx_type len = numel ();
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346 if (len == 0)
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347 return FloatComplex (0.0);
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348
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349 FloatComplex res = elem (0);
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350 float absres = std::abs (res);
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351
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352 for (octave_idx_type i = 1; i < len; i++)
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353 if (std::abs (elem (i)) > absres)
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354 {
10314
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parents: 10158
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355 res = elem (i);
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parents: 10158
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356 absres = std::abs (res);
7789
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357 }
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358
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359 return res;
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360 }
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361
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362 // i/o
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363
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364 std::ostream&
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365 operator << (std::ostream& os, const FloatComplexRowVector& a)
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366 {
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367 // int field_width = os.precision () + 7;
20232
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 19697
diff changeset
368 for (octave_idx_type i = 0; i < a.numel (); i++)
23807
336f89b6208b Use character literals 'c' rather than string literals "c" when possible.
Rik <rik@octave.org>
parents: 23534
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369 os << ' ' /* setw (field_width) */ << a.elem (i);
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370 return os;
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371 }
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372
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373 std::istream&
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374 operator >> (std::istream& is, FloatComplexRowVector& a)
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parents:
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375 {
20232
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 19697
diff changeset
376 octave_idx_type len = a.numel ();
7789
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377
8999
dc07bc4157b8 allow empty matrices in stream input operators
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
378 if (len > 0)
7789
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379 {
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380 FloatComplex tmp;
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381 for (octave_idx_type i = 0; i < len; i++)
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382 {
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383 is >> tmp;
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384 if (is)
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385 a.elem (i) = tmp;
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diff changeset
386 else
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387 break;
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parents:
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388 }
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parents:
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389 }
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parents:
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390 return is;
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parents:
diff changeset
391 }
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parents:
diff changeset
392
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parents:
diff changeset
393 // row vector by column vector -> scalar
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parents:
diff changeset
394
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parents:
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395 // row vector by column vector -> scalar
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parents:
diff changeset
396
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diff changeset
397 FloatComplex
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parents:
diff changeset
398 operator * (const FloatComplexRowVector& v, const FloatColumnVector& a)
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parents:
diff changeset
399 {
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diff changeset
400 FloatComplexColumnVector tmp (a);
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parents:
diff changeset
401 return v * tmp;
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diff changeset
402 }
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parents:
diff changeset
403
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parents:
diff changeset
404 FloatComplex
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parents:
diff changeset
405 operator * (const FloatComplexRowVector& v, const FloatComplexColumnVector& a)
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parents:
diff changeset
406 {
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diff changeset
407 FloatComplex retval (0.0, 0.0);
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parents:
diff changeset
408
22988
cd33c785e80e put to_f77_int inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22981
diff changeset
409 F77_INT len = octave::to_f77_int (v.numel ());
7789
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parents:
diff changeset
410
22988
cd33c785e80e put to_f77_int inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22981
diff changeset
411 F77_INT a_len = octave::to_f77_int (a.numel ());
7789
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parents:
diff changeset
412
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parents:
diff changeset
413 if (len != a_len)
22327
d0562b3159c7 move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
414 octave::err_nonconformant ("operator *", len, a_len);
21120
499b851fbfae Replace pattern if/err_XXX/else/code with if/err_XXX/ code.
Rik <rik@octave.org>
parents: 21100
diff changeset
415
499b851fbfae Replace pattern if/err_XXX/else/code with if/err_XXX/ code.
Rik <rik@octave.org>
parents: 21100
diff changeset
416 if (len != 0)
22402
4caa7b28d183 maint: Style check C++ code in liboctave/
Rik <rik@octave.org>
parents: 22327
diff changeset
417 F77_FUNC (xcdotu, XCDOTU) (len, F77_CONST_CMPLX_ARG (v.data ()), 1,
4caa7b28d183 maint: Style check C++ code in liboctave/
Rik <rik@octave.org>
parents: 22327
diff changeset
418 F77_CONST_CMPLX_ARG (a.data ()), 1, F77_CMPLX_ARG (&retval));
7789
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diff changeset
419
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parents:
diff changeset
420 return retval;
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parents:
diff changeset
421 }
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parents:
diff changeset
422
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parents:
diff changeset
423 // other operations
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parents:
diff changeset
424
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parents:
diff changeset
425 FloatComplexRowVector
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parents:
diff changeset
426 linspace (const FloatComplex& x1, const FloatComplex& x2, octave_idx_type n)
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parents:
diff changeset
427 {
20466
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
Rik <rik@octave.org>
parents: 20232
diff changeset
428 NoAlias<FloatComplexRowVector> retval;
9653
e087d7c77ff9 improve linspace in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 9550
diff changeset
429
20466
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
Rik <rik@octave.org>
parents: 20232
diff changeset
430 if (n < 1)
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
Rik <rik@octave.org>
parents: 20232
diff changeset
431 return retval;
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
Rik <rik@octave.org>
parents: 20232
diff changeset
432 else
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
Rik <rik@octave.org>
parents: 20232
diff changeset
433 retval.clear (n);
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
Rik <rik@octave.org>
parents: 20232
diff changeset
434
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
Rik <rik@octave.org>
parents: 20232
diff changeset
435 retval(0) = x1;
7789
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parents:
diff changeset
436
25237
ca022a8c4015 linspace: handle ranges with equal Inf endpoints (bug #53489)
Maor Shutman <maorus12@gmail.com>
parents: 25054
diff changeset
437 FloatComplex delta = (x1 == x2) ? 0 : (x2 - x1) / (n - 1.0f);
9653
e087d7c77ff9 improve linspace in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 9550
diff changeset
438 for (octave_idx_type i = 1; i < n-1; i++)
9658
3429c956de6f extend linspace & fix up liboctave rewrite
Jaroslav Hajek <highegg@gmail.com>
parents: 9653
diff changeset
439 retval(i) = x1 + static_cast<float> (i)*delta;
20466
16b9ec39ff46 Return empty matrix when linspace called with 0 points (bug #45820)
Rik <rik@octave.org>
parents: 20232
diff changeset
440
9653
e087d7c77ff9 improve linspace in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 9550
diff changeset
441 retval(n-1) = x2;
7789
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diff changeset
442
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diff changeset
443 return retval;
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parents:
diff changeset
444 }