Mercurial > octave
annotate liboctave/numeric/lo-specfun.cc @ 33639:65b1cf6aa60a bytecode-interpreter tip
maint: Merge default to bytecode-interpreter
author | Arun Giridhar <arungiridhar@gmail.com> |
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date | Mon, 03 Jun 2024 14:38:47 -0400 |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 1996-2024 The Octave Project Developers |
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4 // |
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5 // See the file COPYRIGHT.md in the top-level directory of this |
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6 // distribution or <https://octave.org/copyright/>. |
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7 // |
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8 // This file is part of Octave. |
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9 // |
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10 // Octave is free software: you can redistribute it and/or modify it |
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11 // under the terms of the GNU General Public License as published by |
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12 // the Free Software Foundation, either version 3 of the License, or |
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13 // (at your option) any later version. |
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14 // |
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15 // Octave is distributed in the hope that it will be useful, but |
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 // GNU General Public License for more details. |
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19 // |
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20 // You should have received a copy of the GNU General Public License |
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21 // along with Octave; see the file COPYING. If not, see |
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22 // <https://www.gnu.org/licenses/>. |
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23 // |
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24 //////////////////////////////////////////////////////////////////////// |
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26 #if defined (HAVE_CONFIG_H) |
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27 # include "config.h" |
3146 | 28 #endif |
29 | |
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30 #include <cmath> |
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31 |
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32 #include <algorithm> |
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33 #include <limits> |
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34 #include <string> |
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35 |
3220 | 36 #include "CColVector.h" |
37 #include "CMatrix.h" | |
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38 #include "CNDArray.h" |
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39 #include "Faddeeva.hh" |
3146 | 40 #include "dMatrix.h" |
4844 | 41 #include "dNDArray.h" |
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42 #include "dRowVector.h" |
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43 #include "f77-fcn.h" |
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44 #include "fCColVector.h" |
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45 #include "fCMatrix.h" |
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46 #include "fCNDArray.h" |
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47 #include "fMatrix.h" |
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48 #include "fNDArray.h" |
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49 #include "fRowVector.h" |
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50 #include "lo-amos-proto.h" |
3146 | 51 #include "lo-error.h" |
3220 | 52 #include "lo-ieee.h" |
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53 #include "lo-mappers.h" |
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54 #include "lo-slatec-proto.h" |
3220 | 55 #include "lo-specfun.h" |
3146 | 56 #include "mx-inlines.cc" |
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57 |
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58 OCTAVE_BEGIN_NAMESPACE(octave) |
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59 |
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60 OCTAVE_BEGIN_NAMESPACE(math) |
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61 |
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62 static inline Complex |
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63 bessel_return_value (const Complex& val, octave_idx_type ierr) |
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64 { |
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65 static const Complex inf_val |
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66 = Complex (numeric_limits<double>::Inf (), |
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67 numeric_limits<double>::Inf ()); |
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68 |
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69 static const Complex nan_val |
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70 = Complex (numeric_limits<double>::NaN (), |
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71 numeric_limits<double>::NaN ()); |
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72 |
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73 Complex retval; |
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74 |
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75 switch (ierr) |
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76 { |
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77 case 0: |
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78 case 3: |
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79 case 4: |
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80 retval = val; |
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81 break; |
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82 |
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83 case 2: |
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84 retval = inf_val; |
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85 break; |
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86 |
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87 default: |
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88 retval = nan_val; |
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89 break; |
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90 } |
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91 |
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92 return retval; |
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93 } |
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94 |
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95 static inline FloatComplex |
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96 bessel_return_value (const FloatComplex& val, octave_idx_type ierr) |
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97 { |
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98 static const FloatComplex inf_val |
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99 = FloatComplex (numeric_limits<float>::Inf (), |
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100 numeric_limits<float>::Inf ()); |
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101 |
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102 static const FloatComplex nan_val |
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103 = FloatComplex (numeric_limits<float>::NaN (), |
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104 numeric_limits<float>::NaN ()); |
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105 |
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106 FloatComplex retval; |
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107 |
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108 switch (ierr) |
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109 { |
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110 case 0: |
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111 case 3: |
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112 case 4: |
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113 retval = val; |
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114 break; |
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115 |
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116 case 2: |
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117 retval = inf_val; |
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118 break; |
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119 |
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120 default: |
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121 retval = nan_val; |
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122 break; |
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123 } |
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124 |
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125 return retval; |
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126 } |
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127 |
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128 Complex |
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129 airy (const Complex& z, bool deriv, bool scaled, octave_idx_type& ierr) |
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130 { |
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131 double ar = 0.0; |
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132 double ai = 0.0; |
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133 |
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134 double zr = z.real (); |
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135 double zi = z.imag (); |
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136 |
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137 F77_INT id = (deriv ? 1 : 0); |
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138 F77_INT nz, t_ierr; |
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139 F77_INT sc = (scaled ? 2 : 1); |
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140 |
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141 F77_FUNC (zairy, ZAIRY) (zr, zi, id, sc, ar, ai, nz, t_ierr); |
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142 |
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143 ierr = t_ierr; |
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144 |
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145 if (zi == 0.0 && (! scaled || zr >= 0.0)) |
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146 ai = 0.0; |
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147 |
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148 return bessel_return_value (Complex (ar, ai), ierr); |
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149 } |
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150 |
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151 ComplexMatrix |
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152 airy (const ComplexMatrix& z, bool deriv, bool scaled, |
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153 Array<octave_idx_type>& ierr) |
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154 { |
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155 octave_idx_type nr = z.rows (); |
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156 octave_idx_type nc = z.cols (); |
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157 |
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158 ComplexMatrix retval (nr, nc); |
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159 |
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160 ierr.resize (dim_vector (nr, nc)); |
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161 |
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162 for (octave_idx_type j = 0; j < nc; j++) |
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163 for (octave_idx_type i = 0; i < nr; i++) |
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164 retval(i, j) = airy (z(i, j), deriv, scaled, ierr(i, j)); |
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165 |
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166 return retval; |
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167 } |
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168 |
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169 ComplexNDArray |
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170 airy (const ComplexNDArray& z, bool deriv, bool scaled, |
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171 Array<octave_idx_type>& ierr) |
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172 { |
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173 const dim_vector& dv = z.dims (); |
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174 octave_idx_type nel = dv.numel (); |
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175 ComplexNDArray retval (dv); |
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176 |
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177 ierr.resize (dv); |
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178 |
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179 for (octave_idx_type i = 0; i < nel; i++) |
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180 retval(i) = airy (z(i), deriv, scaled, ierr(i)); |
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181 |
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182 return retval; |
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183 } |
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184 |
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185 FloatComplex |
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186 airy (const FloatComplex& z, bool deriv, bool scaled, |
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187 octave_idx_type& ierr) |
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188 { |
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189 FloatComplex a; |
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190 |
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191 F77_INT id = (deriv ? 1 : 0); |
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192 F77_INT nz, t_ierr; |
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193 F77_INT sc = (scaled ? 2 : 1); |
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194 |
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195 F77_FUNC (cairy, CAIRY) (F77_CONST_CMPLX_ARG (&z), id, sc, |
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196 F77_CMPLX_ARG (&a), nz, t_ierr); |
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197 |
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198 ierr = t_ierr; |
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199 |
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200 float ar = a.real (); |
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201 float ai = a.imag (); |
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202 |
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203 if (z.imag () == 0.0 && (! scaled || z.real () >= 0.0)) |
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204 ai = 0.0; |
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205 |
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206 return bessel_return_value (FloatComplex (ar, ai), ierr); |
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207 } |
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208 |
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209 FloatComplexMatrix |
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210 airy (const FloatComplexMatrix& z, bool deriv, bool scaled, |
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211 Array<octave_idx_type>& ierr) |
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212 { |
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213 octave_idx_type nr = z.rows (); |
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214 octave_idx_type nc = z.cols (); |
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215 |
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216 FloatComplexMatrix retval (nr, nc); |
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217 |
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218 ierr.resize (dim_vector (nr, nc)); |
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219 |
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220 for (octave_idx_type j = 0; j < nc; j++) |
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221 for (octave_idx_type i = 0; i < nr; i++) |
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222 retval(i, j) = airy (z(i, j), deriv, scaled, ierr(i, j)); |
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223 |
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224 return retval; |
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225 } |
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226 |
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227 FloatComplexNDArray |
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228 airy (const FloatComplexNDArray& z, bool deriv, bool scaled, |
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229 Array<octave_idx_type>& ierr) |
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230 { |
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231 const dim_vector& dv = z.dims (); |
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232 octave_idx_type nel = dv.numel (); |
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233 FloatComplexNDArray retval (dv); |
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234 |
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235 ierr.resize (dv); |
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236 |
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237 for (octave_idx_type i = 0; i < nel; i++) |
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238 retval(i) = airy (z(i), deriv, scaled, ierr(i)); |
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239 |
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240 return retval; |
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241 } |
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242 |
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243 static inline bool |
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244 is_integer_value (double x) |
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245 { |
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246 return x == static_cast<double> (static_cast<long> (x)); |
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247 } |
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248 |
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249 static inline Complex |
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250 zbesj (const Complex& z, double alpha, int kode, octave_idx_type& ierr); |
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251 |
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252 static inline Complex |
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253 zbesy (const Complex& z, double alpha, int kode, octave_idx_type& ierr); |
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254 |
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255 static inline Complex |
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256 zbesi (const Complex& z, double alpha, int kode, octave_idx_type& ierr); |
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257 |
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258 static inline Complex |
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259 zbesk (const Complex& z, double alpha, int kode, octave_idx_type& ierr); |
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260 |
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261 static inline Complex |
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262 zbesh1 (const Complex& z, double alpha, int kode, octave_idx_type& ierr); |
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263 |
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264 static inline Complex |
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265 zbesh2 (const Complex& z, double alpha, int kode, octave_idx_type& ierr); |
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266 |
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267 static inline Complex |
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268 zbesj (const Complex& z, double alpha, int kode, octave_idx_type& ierr) |
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269 { |
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270 Complex retval; |
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271 |
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272 if (alpha >= 0.0) |
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273 { |
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274 double yr = 0.0; |
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275 double yi = 0.0; |
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276 |
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277 F77_INT nz, t_ierr; |
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278 |
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279 double zr = z.real (); |
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280 double zi = z.imag (); |
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281 |
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282 F77_FUNC (zbesj, ZBESJ) (zr, zi, alpha, kode, 1, &yr, &yi, nz, t_ierr); |
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283 |
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284 ierr = t_ierr; |
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285 |
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286 if (zi == 0.0 && zr >= 0.0) |
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287 yi = 0.0; |
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288 |
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289 retval = bessel_return_value (Complex (yr, yi), ierr); |
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290 } |
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291 else if (is_integer_value (alpha)) |
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292 { |
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293 // zbesy can overflow as z->0, and cause troubles for generic case below |
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294 alpha = -alpha; |
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295 Complex tmp = zbesj (z, alpha, kode, ierr); |
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296 if ((static_cast<long> (alpha)) & 1) |
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297 tmp = - tmp; |
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298 retval = bessel_return_value (tmp, ierr); |
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299 } |
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300 else |
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301 { |
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302 alpha = -alpha; |
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303 |
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304 Complex tmp = cos (M_PI * alpha) * zbesj (z, alpha, kode, ierr); |
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305 |
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306 if (ierr == 0 || ierr == 3) |
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307 { |
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308 tmp -= sin (M_PI * alpha) * zbesy (z, alpha, kode, ierr); |
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309 |
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310 retval = bessel_return_value (tmp, ierr); |
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311 } |
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312 else |
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313 retval = Complex (numeric_limits<double>::NaN (), |
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314 numeric_limits<double>::NaN ()); |
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315 } |
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316 |
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317 return retval; |
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318 } |
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319 |
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320 static inline Complex |
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321 zbesy (const Complex& z, double alpha, int kode, octave_idx_type& ierr) |
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322 { |
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323 Complex retval; |
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324 |
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325 if (alpha >= 0.0) |
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326 { |
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327 double yr = 0.0; |
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328 double yi = 0.0; |
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329 |
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330 F77_INT nz, t_ierr; |
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331 |
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332 double wr, wi; |
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333 |
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334 double zr = z.real (); |
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335 double zi = z.imag (); |
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336 |
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337 ierr = 0; |
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338 |
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339 if (zr == 0.0 && zi == 0.0) |
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340 { |
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341 yr = -numeric_limits<double>::Inf (); |
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342 yi = 0.0; |
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343 } |
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344 else |
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345 { |
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346 F77_FUNC (zbesy, ZBESY) (zr, zi, alpha, kode, 1, &yr, &yi, nz, |
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347 &wr, &wi, t_ierr); |
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348 |
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349 ierr = t_ierr; |
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350 |
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351 if (zi == 0.0 && zr >= 0.0) |
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352 yi = 0.0; |
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353 } |
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354 |
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355 return bessel_return_value (Complex (yr, yi), ierr); |
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356 } |
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357 else if (is_integer_value (alpha - 0.5)) |
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358 { |
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359 // zbesy can overflow as z->0, and cause troubles for generic case below |
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360 alpha = -alpha; |
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361 Complex tmp = zbesj (z, alpha, kode, ierr); |
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362 if ((static_cast<long> (alpha - 0.5)) & 1) |
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363 tmp = - tmp; |
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364 retval = bessel_return_value (tmp, ierr); |
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365 } |
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366 else |
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367 { |
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368 alpha = -alpha; |
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369 |
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370 Complex tmp = cos (M_PI * alpha) * zbesy (z, alpha, kode, ierr); |
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371 |
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372 if (ierr == 0 || ierr == 3) |
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373 { |
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374 tmp += sin (M_PI * alpha) * zbesj (z, alpha, kode, ierr); |
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375 |
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376 retval = bessel_return_value (tmp, ierr); |
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377 } |
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378 else |
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379 retval = Complex (numeric_limits<double>::NaN (), |
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380 numeric_limits<double>::NaN ()); |
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381 } |
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382 |
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383 return retval; |
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384 } |
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385 |
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386 static inline Complex |
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387 zbesi (const Complex& z, double alpha, int kode, octave_idx_type& ierr) |
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388 { |
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389 Complex retval; |
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390 |
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391 if (alpha >= 0.0) |
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392 { |
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393 double yr = 0.0; |
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394 double yi = 0.0; |
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395 |
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396 F77_INT nz, t_ierr; |
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397 |
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398 double zr = z.real (); |
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399 double zi = z.imag (); |
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400 |
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401 F77_FUNC (zbesi, ZBESI) (zr, zi, alpha, kode, 1, &yr, &yi, nz, t_ierr); |
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402 |
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403 ierr = t_ierr; |
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404 |
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405 if (zi == 0.0 && zr >= 0.0) |
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406 yi = 0.0; |
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407 |
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408 retval = bessel_return_value (Complex (yr, yi), ierr); |
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409 } |
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410 else if (is_integer_value (alpha)) |
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411 { |
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412 // zbesi can overflow as z->0, and cause troubles for generic case below |
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413 alpha = -alpha; |
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414 Complex tmp = zbesi (z, alpha, kode, ierr); |
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415 retval = bessel_return_value (tmp, ierr); |
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416 } |
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417 else |
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418 { |
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419 alpha = -alpha; |
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420 |
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421 Complex tmp = zbesi (z, alpha, kode, ierr); |
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422 |
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423 if (ierr == 0 || ierr == 3) |
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424 { |
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425 Complex tmp2 = (2.0 / M_PI) * sin (M_PI * alpha) |
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426 * zbesk (z, alpha, kode, ierr); |
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427 |
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428 if (kode == 2) |
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429 { |
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430 // Compensate for different scaling factor of besk. |
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431 tmp2 *= exp (-z - std::abs (z.real ())); |
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432 } |
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433 |
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434 tmp += tmp2; |
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435 |
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436 retval = bessel_return_value (tmp, ierr); |
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437 } |
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438 else |
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439 retval = Complex (numeric_limits<double>::NaN (), |
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440 numeric_limits<double>::NaN ()); |
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441 } |
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442 |
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443 return retval; |
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444 } |
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445 |
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446 static inline Complex |
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447 zbesk (const Complex& z, double alpha, int kode, octave_idx_type& ierr) |
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448 { |
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449 Complex retval; |
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450 |
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451 if (alpha >= 0.0) |
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452 { |
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453 double yr = 0.0; |
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454 double yi = 0.0; |
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455 |
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456 F77_INT nz, t_ierr; |
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457 |
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458 double zr = z.real (); |
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459 double zi = z.imag (); |
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460 |
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461 ierr = 0; |
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462 |
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463 if (zr == 0.0 && zi == 0.0) |
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464 { |
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465 yr = numeric_limits<double>::Inf (); |
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466 yi = 0.0; |
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467 } |
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468 else |
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469 { |
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470 F77_FUNC (zbesk, ZBESK) (zr, zi, alpha, kode, 1, &yr, &yi, nz, |
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471 t_ierr); |
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472 |
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473 ierr = t_ierr; |
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474 |
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475 if (zi == 0.0 && zr >= 0.0) |
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476 yi = 0.0; |
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477 } |
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478 |
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479 retval = bessel_return_value (Complex (yr, yi), ierr); |
3220 | 480 } |
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481 else |
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482 { |
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483 Complex tmp = zbesk (z, -alpha, kode, ierr); |
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484 |
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485 retval = bessel_return_value (tmp, ierr); |
3220 | 486 } |
3146 | 487 |
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488 return retval; |
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489 } |
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490 |
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491 static inline Complex |
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492 zbesh1 (const Complex& z, double alpha, int kode, octave_idx_type& ierr) |
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493 { |
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494 Complex retval; |
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495 |
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496 if (alpha >= 0.0) |
3220 | 497 { |
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498 double yr = 0.0; |
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499 double yi = 0.0; |
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500 |
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501 F77_INT nz, t_ierr; |
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502 |
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503 double zr = z.real (); |
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504 double zi = z.imag (); |
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505 |
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506 F77_FUNC (zbesh, ZBESH) (zr, zi, alpha, kode, 1, 1, &yr, &yi, nz, |
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507 t_ierr); |
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508 |
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509 ierr = t_ierr; |
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510 |
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511 retval = bessel_return_value (Complex (yr, yi), ierr); |
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512 } |
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513 else |
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514 { |
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515 alpha = -alpha; |
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516 |
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517 static const Complex eye = Complex (0.0, 1.0); |
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518 |
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519 Complex tmp = exp (M_PI * alpha * eye) * zbesh1 (z, alpha, kode, ierr); |
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520 |
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521 retval = bessel_return_value (tmp, ierr); |
3146 | 522 } |
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523 |
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524 return retval; |
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525 } |
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526 |
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527 static inline Complex |
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528 zbesh2 (const Complex& z, double alpha, int kode, octave_idx_type& ierr) |
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529 { |
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530 Complex retval; |
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531 |
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532 if (alpha >= 0.0) |
3220 | 533 { |
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534 double yr = 0.0; |
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535 double yi = 0.0; |
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536 |
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537 F77_INT nz, t_ierr; |
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538 |
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539 double zr = z.real (); |
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540 double zi = z.imag (); |
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541 |
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542 F77_FUNC (zbesh, ZBESH) (zr, zi, alpha, kode, 2, 1, &yr, &yi, nz, |
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543 t_ierr); |
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544 |
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545 ierr = t_ierr; |
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546 |
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547 retval = bessel_return_value (Complex (yr, yi), ierr); |
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548 } |
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549 else |
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550 { |
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551 alpha = -alpha; |
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552 |
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553 static const Complex eye = Complex (0.0, 1.0); |
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554 |
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555 Complex tmp = exp (-M_PI * alpha * eye) * zbesh2 (z, alpha, kode, ierr); |
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556 |
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557 retval = bessel_return_value (tmp, ierr); |
3220 | 558 } |
559 | |
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560 return retval; |
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561 } |
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562 |
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563 typedef Complex (*dptr) (const Complex&, double, int, octave_idx_type&); |
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564 |
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565 static inline Complex |
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566 do_bessel (dptr f, const char *, double alpha, const Complex& x, |
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567 bool scaled, octave_idx_type& ierr) |
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568 { |
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569 Complex retval; |
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570 |
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571 retval = f (x, alpha, (scaled ? 2 : 1), ierr); |
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572 |
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573 return retval; |
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574 } |
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575 |
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576 static inline ComplexMatrix |
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577 do_bessel (dptr f, const char *, double alpha, const ComplexMatrix& x, |
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578 bool scaled, Array<octave_idx_type>& ierr) |
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579 { |
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580 octave_idx_type nr = x.rows (); |
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581 octave_idx_type nc = x.cols (); |
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582 |
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583 ComplexMatrix retval (nr, nc); |
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584 |
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585 ierr.resize (dim_vector (nr, nc)); |
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586 |
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587 for (octave_idx_type j = 0; j < nc; j++) |
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588 for (octave_idx_type i = 0; i < nr; i++) |
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589 retval(i, j) = f (x(i, j), alpha, (scaled ? 2 : 1), ierr(i, j)); |
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590 |
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591 return retval; |
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592 } |
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593 |
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594 static inline ComplexMatrix |
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595 do_bessel (dptr f, const char *, const Matrix& alpha, const Complex& x, |
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596 bool scaled, Array<octave_idx_type>& ierr) |
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597 { |
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598 octave_idx_type nr = alpha.rows (); |
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599 octave_idx_type nc = alpha.cols (); |
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600 |
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601 ComplexMatrix retval (nr, nc); |
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602 |
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603 ierr.resize (dim_vector (nr, nc)); |
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604 |
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605 for (octave_idx_type j = 0; j < nc; j++) |
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606 for (octave_idx_type i = 0; i < nr; i++) |
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607 retval(i, j) = f (x, alpha(i, j), (scaled ? 2 : 1), ierr(i, j)); |
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608 |
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609 return retval; |
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610 } |
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611 |
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612 static inline ComplexMatrix |
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613 do_bessel (dptr f, const char *fn, const Matrix& alpha, |
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614 const ComplexMatrix& x, bool scaled, Array<octave_idx_type>& ierr) |
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615 { |
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616 ComplexMatrix retval; |
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617 |
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618 octave_idx_type x_nr = x.rows (); |
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619 octave_idx_type x_nc = x.cols (); |
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620 |
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621 octave_idx_type alpha_nr = alpha.rows (); |
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622 octave_idx_type alpha_nc = alpha.cols (); |
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623 |
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624 if (x_nr != alpha_nr || x_nc != alpha_nc) |
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625 (*current_liboctave_error_handler) |
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626 ("%s: the sizes of alpha and x must conform", fn); |
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627 |
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628 octave_idx_type nr = x_nr; |
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629 octave_idx_type nc = x_nc; |
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630 |
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631 retval.resize (nr, nc); |
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632 |
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633 ierr.resize (dim_vector (nr, nc)); |
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634 |
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635 for (octave_idx_type j = 0; j < nc; j++) |
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636 for (octave_idx_type i = 0; i < nr; i++) |
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637 retval(i, j) = f (x(i, j), alpha(i, j), (scaled ? 2 : 1), ierr(i, j)); |
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638 |
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639 return retval; |
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640 } |
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641 |
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642 static inline ComplexNDArray |
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643 do_bessel (dptr f, const char *, double alpha, const ComplexNDArray& x, |
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644 bool scaled, Array<octave_idx_type>& ierr) |
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645 { |
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646 const dim_vector& dv = x.dims (); |
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647 octave_idx_type nel = dv.numel (); |
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648 ComplexNDArray retval (dv); |
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649 |
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650 ierr.resize (dv); |
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651 |
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652 for (octave_idx_type i = 0; i < nel; i++) |
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653 retval(i) = f (x(i), alpha, (scaled ? 2 : 1), ierr(i)); |
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654 |
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655 return retval; |
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656 } |
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657 |
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658 static inline ComplexNDArray |
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659 do_bessel (dptr f, const char *, const NDArray& alpha, const Complex& x, |
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660 bool scaled, Array<octave_idx_type>& ierr) |
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661 { |
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662 const dim_vector& dv = alpha.dims (); |
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663 octave_idx_type nel = dv.numel (); |
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664 ComplexNDArray retval (dv); |
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665 |
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666 ierr.resize (dv); |
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667 |
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668 for (octave_idx_type i = 0; i < nel; i++) |
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669 retval(i) = f (x, alpha(i), (scaled ? 2 : 1), ierr(i)); |
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670 |
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671 return retval; |
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672 } |
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673 |
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674 static inline ComplexNDArray |
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675 do_bessel (dptr f, const char *fn, const NDArray& alpha, |
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676 const ComplexNDArray& x, bool scaled, Array<octave_idx_type>& ierr) |
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677 { |
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678 const dim_vector& dv = x.dims (); |
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679 ComplexNDArray retval; |
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680 |
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681 if (dv != alpha.dims ()) |
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682 (*current_liboctave_error_handler) |
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683 ("%s: the sizes of alpha and x must conform", fn); |
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684 |
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685 octave_idx_type nel = dv.numel (); |
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686 |
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687 retval.resize (dv); |
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688 ierr.resize (dv); |
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689 |
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690 for (octave_idx_type i = 0; i < nel; i++) |
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691 retval(i) = f (x(i), alpha(i), (scaled ? 2 : 1), ierr(i)); |
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692 |
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693 return retval; |
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694 } |
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695 |
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696 static inline ComplexMatrix |
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697 do_bessel (dptr f, const char *, const RowVector& alpha, |
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698 const ComplexColumnVector& x, bool scaled, |
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699 Array<octave_idx_type>& ierr) |
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700 { |
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701 octave_idx_type nr = x.numel (); |
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702 octave_idx_type nc = alpha.numel (); |
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703 |
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704 ComplexMatrix retval (nr, nc); |
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705 |
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706 ierr.resize (dim_vector (nr, nc)); |
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707 |
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708 for (octave_idx_type j = 0; j < nc; j++) |
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709 for (octave_idx_type i = 0; i < nr; i++) |
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710 retval(i, j) = f (x(i), alpha(j), (scaled ? 2 : 1), ierr(i, j)); |
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711 |
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712 return retval; |
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713 } |
3146 | 714 |
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715 #define SS_BESSEL(name, fcn) \ |
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716 Complex \ |
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717 name (double alpha, const Complex& x, bool scaled, octave_idx_type& ierr) \ |
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718 { \ |
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719 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
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720 } |
3220 | 721 |
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722 #define SM_BESSEL(name, fcn) \ |
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723 ComplexMatrix \ |
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724 name (double alpha, const ComplexMatrix& x, bool scaled, \ |
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725 Array<octave_idx_type>& ierr) \ |
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726 { \ |
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727 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
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728 } |
3220 | 729 |
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730 #define MS_BESSEL(name, fcn) \ |
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731 ComplexMatrix \ |
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732 name (const Matrix& alpha, const Complex& x, bool scaled, \ |
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733 Array<octave_idx_type>& ierr) \ |
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734 { \ |
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735 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
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736 } |
3220 | 737 |
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738 #define MM_BESSEL(name, fcn) \ |
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739 ComplexMatrix \ |
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740 name (const Matrix& alpha, const ComplexMatrix& x, bool scaled, \ |
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741 Array<octave_idx_type>& ierr) \ |
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742 { \ |
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743 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
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744 } |
3220 | 745 |
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746 #define SN_BESSEL(name, fcn) \ |
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747 ComplexNDArray \ |
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748 name (double alpha, const ComplexNDArray& x, bool scaled, \ |
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749 Array<octave_idx_type>& ierr) \ |
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750 { \ |
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751 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
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752 } |
4844 | 753 |
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754 #define NS_BESSEL(name, fcn) \ |
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755 ComplexNDArray \ |
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|
756 name (const NDArray& alpha, const Complex& x, bool scaled, \ |
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757 Array<octave_idx_type>& ierr) \ |
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|
758 { \ |
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759 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
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760 } |
4844 | 761 |
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762 #define NN_BESSEL(name, fcn) \ |
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|
763 ComplexNDArray \ |
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|
764 name (const NDArray& alpha, const ComplexNDArray& x, bool scaled, \ |
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765 Array<octave_idx_type>& ierr) \ |
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|
766 { \ |
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|
767 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
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|
768 } |
4844 | 769 |
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|
770 #define RC_BESSEL(name, fcn) \ |
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|
771 ComplexMatrix \ |
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772 name (const RowVector& alpha, const ComplexColumnVector& x, bool scaled, \ |
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|
773 Array<octave_idx_type>& ierr) \ |
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|
774 { \ |
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|
775 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
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776 } |
3220 | 777 |
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|
778 #define ALL_BESSEL(name, fcn) \ |
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779 SS_BESSEL (name, fcn) \ |
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|
780 SM_BESSEL (name, fcn) \ |
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|
781 MS_BESSEL (name, fcn) \ |
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|
782 MM_BESSEL (name, fcn) \ |
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|
783 SN_BESSEL (name, fcn) \ |
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|
784 NS_BESSEL (name, fcn) \ |
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|
785 NN_BESSEL (name, fcn) \ |
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|
786 RC_BESSEL (name, fcn) |
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|
787 |
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|
788 ALL_BESSEL (besselj, zbesj) |
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|
789 ALL_BESSEL (bessely, zbesy) |
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|
790 ALL_BESSEL (besseli, zbesi) |
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791 ALL_BESSEL (besselk, zbesk) |
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|
792 ALL_BESSEL (besselh1, zbesh1) |
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|
793 ALL_BESSEL (besselh2, zbesh2) |
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|
794 |
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|
795 #undef ALL_BESSEL |
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796 #undef SS_BESSEL |
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|
797 #undef SM_BESSEL |
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|
798 #undef MS_BESSEL |
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799 #undef MM_BESSEL |
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800 #undef SN_BESSEL |
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|
801 #undef NS_BESSEL |
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|
802 #undef NN_BESSEL |
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|
803 #undef RC_BESSEL |
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|
804 |
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|
805 static inline FloatComplex |
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|
806 cbesj (const FloatComplex& z, float alpha, int kode, octave_idx_type& ierr); |
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|
807 |
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|
808 static inline FloatComplex |
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|
809 cbesy (const FloatComplex& z, float alpha, int kode, octave_idx_type& ierr); |
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|
810 |
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|
811 static inline FloatComplex |
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|
812 cbesi (const FloatComplex& z, float alpha, int kode, octave_idx_type& ierr); |
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|
813 |
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|
814 static inline FloatComplex |
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|
815 cbesk (const FloatComplex& z, float alpha, int kode, octave_idx_type& ierr); |
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|
816 |
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|
817 static inline FloatComplex |
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|
818 cbesh1 (const FloatComplex& z, float alpha, int kode, octave_idx_type& ierr); |
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|
819 |
31607
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|
820 static inline FloatComplex |
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|
821 cbesh2 (const FloatComplex& z, float alpha, int kode, octave_idx_type& ierr); |
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|
822 |
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|
823 static inline bool |
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|
824 is_integer_value (float x) |
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|
825 { |
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|
826 return x == static_cast<float> (static_cast<long> (x)); |
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|
827 } |
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|
828 |
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|
829 static inline FloatComplex |
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|
830 cbesj (const FloatComplex& z, float alpha, int kode, octave_idx_type& ierr) |
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|
831 { |
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|
832 FloatComplex retval; |
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|
833 |
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|
834 if (alpha >= 0.0) |
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|
835 { |
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|
836 FloatComplex y = 0.0; |
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|
837 |
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|
838 F77_INT nz, t_ierr; |
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|
839 |
31607
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|
840 F77_FUNC (cbesj, CBESJ) (F77_CONST_CMPLX_ARG (&z), alpha, kode, 1, |
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|
841 F77_CMPLX_ARG (&y), nz, t_ierr); |
21786
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|
842 |
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|
843 ierr = t_ierr; |
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|
844 |
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|
845 if (z.imag () == 0.0 && z.real () >= 0.0) |
aac27ad79be6
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|
846 y = FloatComplex (y.real (), 0.0); |
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|
847 |
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|
848 retval = bessel_return_value (y, ierr); |
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|
849 } |
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|
850 else if (is_integer_value (alpha)) |
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|
851 { |
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|
852 // zbesy can overflow as z->0, and cause troubles for generic case below |
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|
853 alpha = -alpha; |
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|
854 FloatComplex tmp = cbesj (z, alpha, kode, ierr); |
aac27ad79be6
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|
855 if ((static_cast<long> (alpha)) & 1) |
aac27ad79be6
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|
856 tmp = - tmp; |
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|
857 retval = bessel_return_value (tmp, ierr); |
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|
858 } |
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|
859 else |
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|
860 { |
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|
861 alpha = -alpha; |
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|
862 |
31607
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|
863 FloatComplex tmp = cosf (static_cast<float> (M_PI) * alpha) |
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|
864 * cbesj (z, alpha, kode, ierr); |
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|
865 |
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|
866 if (ierr == 0 || ierr == 3) |
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|
867 { |
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|
868 tmp -= sinf (static_cast<float> (M_PI) * alpha) |
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maint: Re-indent code after switch to using namespace macros.
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|
869 * cbesy (z, alpha, kode, ierr); |
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|
870 |
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|
871 retval = bessel_return_value (tmp, ierr); |
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diff
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|
872 } |
aac27ad79be6
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diff
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|
873 else |
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|
874 retval = FloatComplex (numeric_limits<float>::NaN (), |
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|
875 numeric_limits<float>::NaN ()); |
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|
876 } |
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
877 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
878 return retval; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
879 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
880 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
881 static inline FloatComplex |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
882 cbesy (const FloatComplex& z, float alpha, int kode, octave_idx_type& ierr) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
883 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
884 FloatComplex retval; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
885 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
886 if (alpha >= 0.0) |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
887 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
888 FloatComplex y = 0.0; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
889 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
890 F77_INT nz, t_ierr; |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
891 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
892 FloatComplex w; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
893 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
894 ierr = 0; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
895 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
896 if (z.real () == 0.0 && z.imag () == 0.0) |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
897 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
898 y = FloatComplex (-numeric_limits<float>::Inf (), 0.0); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
899 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
900 else |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
901 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
902 F77_FUNC (cbesy, CBESY) (F77_CONST_CMPLX_ARG (&z), alpha, kode, 1, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
903 F77_CMPLX_ARG (&y), nz, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
904 F77_CMPLX_ARG (&w), t_ierr); |
22954
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
parents:
22755
diff
changeset
|
905 |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
parents:
22755
diff
changeset
|
906 ierr = t_ierr; |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
907 |
22274
edcad35c364f
don't rely on std:: overloads of arg, conj, imag, and real for real args
John W. Eaton <jwe@octave.org>
parents:
22197
diff
changeset
|
908 if (z.imag () == 0.0 && z.real () >= 0.0) |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
909 y = FloatComplex (y.real (), 0.0); |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
910 } |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
911 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
912 return bessel_return_value (y, ierr); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
913 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
914 else if (is_integer_value (alpha - 0.5)) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
915 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
916 // zbesy can overflow as z->0, and cause troubles for generic case below |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
917 alpha = -alpha; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
918 FloatComplex tmp = cbesj (z, alpha, kode, ierr); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
919 if ((static_cast<long> (alpha - 0.5)) & 1) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
920 tmp = - tmp; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
921 retval = bessel_return_value (tmp, ierr); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
922 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
923 else |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
924 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
925 alpha = -alpha; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
926 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
927 FloatComplex tmp = cosf (static_cast<float> (M_PI) * alpha) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
928 * cbesy (z, alpha, kode, ierr); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
929 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
930 if (ierr == 0 || ierr == 3) |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
931 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
932 tmp += sinf (static_cast<float> (M_PI) * alpha) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
933 * cbesj (z, alpha, kode, ierr); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
934 |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
935 retval = bessel_return_value (tmp, ierr); |
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
936 } |
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
937 else |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
938 retval = FloatComplex (numeric_limits<float>::NaN (), |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
939 numeric_limits<float>::NaN ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
940 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
941 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
942 return retval; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
943 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
944 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
945 static inline FloatComplex |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
946 cbesi (const FloatComplex& z, float alpha, int kode, octave_idx_type& ierr) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
947 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
948 FloatComplex retval; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
949 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
950 if (alpha >= 0.0) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
951 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
952 FloatComplex y = 0.0; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
953 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
954 F77_INT nz, t_ierr; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
955 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
956 F77_FUNC (cbesi, CBESI) (F77_CONST_CMPLX_ARG (&z), alpha, kode, 1, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
957 F77_CMPLX_ARG (&y), nz, t_ierr); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
958 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
959 ierr = t_ierr; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
960 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
961 if (z.imag () == 0.0 && z.real () >= 0.0) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
962 y = FloatComplex (y.real (), 0.0); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
963 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
964 retval = bessel_return_value (y, ierr); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
965 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
966 else |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
967 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
968 alpha = -alpha; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
969 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
970 FloatComplex tmp = cbesi (z, alpha, kode, ierr); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
971 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
972 if (ierr == 0 || ierr == 3) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
973 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
974 FloatComplex tmp2 = static_cast<float> (2.0 / M_PI) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
975 * sinf (static_cast<float> (M_PI) * alpha) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
976 * cbesk (z, alpha, kode, ierr); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
977 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
978 if (kode == 2) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
979 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
980 // Compensate for different scaling factor of besk. |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
981 tmp2 *= exp (-z - std::abs (z.real ())); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
982 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
983 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
984 tmp += tmp2; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
985 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
986 retval = bessel_return_value (tmp, ierr); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
987 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
988 else |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
989 retval = FloatComplex (numeric_limits<float>::NaN (), |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
990 numeric_limits<float>::NaN ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
991 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
992 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
993 return retval; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
994 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
995 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
996 static inline FloatComplex |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
997 cbesk (const FloatComplex& z, float alpha, int kode, octave_idx_type& ierr) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
998 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
999 FloatComplex retval; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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1000 |
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1001 if (alpha >= 0.0) |
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1002 { |
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1003 FloatComplex y = 0.0; |
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|
1004 |
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1005 F77_INT nz, t_ierr; |
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|
1006 |
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|
1007 ierr = 0; |
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|
1008 |
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1009 if (z.real () == 0.0 && z.imag () == 0.0) |
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|
1010 { |
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|
1011 y = FloatComplex (numeric_limits<float>::Inf (), 0.0); |
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|
1012 } |
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1013 else |
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1014 { |
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1015 F77_FUNC (cbesk, CBESK) (F77_CONST_CMPLX_ARG (&z), alpha, kode, 1, |
22954
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1016 F77_CMPLX_ARG (&y), nz, t_ierr); |
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* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
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|
1017 |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
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|
1018 ierr = t_ierr; |
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1019 |
22274
edcad35c364f
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22197
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|
1020 if (z.imag () == 0.0 && z.real () >= 0.0) |
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1021 y = FloatComplex (y.real (), 0.0); |
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|
1022 } |
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|
1023 |
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1024 retval = bessel_return_value (y, ierr); |
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1025 } |
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1026 else |
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|
1027 { |
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1028 FloatComplex tmp = cbesk (z, -alpha, kode, ierr); |
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|
1029 |
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|
1030 retval = bessel_return_value (tmp, ierr); |
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|
1031 } |
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|
1032 |
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|
1033 return retval; |
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|
1034 } |
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|
1035 |
31607
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|
1036 static inline FloatComplex |
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|
1037 cbesh1 (const FloatComplex& z, float alpha, int kode, octave_idx_type& ierr) |
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|
1038 { |
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|
1039 FloatComplex retval; |
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|
1040 |
31607
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|
1041 if (alpha >= 0.0) |
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|
1042 { |
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|
1043 FloatComplex y = 0.0; |
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|
1044 |
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|
1045 F77_INT nz, t_ierr; |
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|
1046 |
31607
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|
1047 F77_FUNC (cbesh, CBESH) (F77_CONST_CMPLX_ARG (&z), alpha, kode, 1, 1, |
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|
1048 F77_CMPLX_ARG (&y), nz, t_ierr); |
22954
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
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|
1049 |
31607
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|
1050 ierr = t_ierr; |
21786
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|
1051 |
31607
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parents:
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|
1052 retval = bessel_return_value (y, ierr); |
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|
1053 } |
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|
1054 else |
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|
1055 { |
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|
1056 alpha = -alpha; |
21786
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|
1057 |
31607
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|
1058 static const FloatComplex eye = FloatComplex (0.0, 1.0); |
21786
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|
1059 |
31607
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|
1060 FloatComplex tmp = exp (static_cast<float> (M_PI) * alpha * eye) |
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|
1061 * cbesh1 (z, alpha, kode, ierr); |
21786
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|
1062 |
31607
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|
1063 retval = bessel_return_value (tmp, ierr); |
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|
1064 } |
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|
1065 |
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|
1066 return retval; |
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|
1067 } |
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|
1068 |
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|
1069 static inline FloatComplex |
aac27ad79be6
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|
1070 cbesh2 (const FloatComplex& z, float alpha, int kode, octave_idx_type& ierr) |
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|
1071 { |
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|
1072 FloatComplex retval; |
21786
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|
1073 |
31607
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|
1074 if (alpha >= 0.0) |
aac27ad79be6
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|
1075 { |
31932
2e135e3cb1aa
maint: replace double semicolon ';;' line ending with just ';'.
Rik <rik@octave.org>
parents:
31706
diff
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|
1076 FloatComplex y = 0.0; |
21786
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|
1077 |
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|
1078 F77_INT nz, t_ierr; |
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|
1079 |
31607
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|
1080 F77_FUNC (cbesh, CBESH) (F77_CONST_CMPLX_ARG (&z), alpha, kode, 2, 1, |
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|
1081 F77_CMPLX_ARG (&y), nz, t_ierr); |
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|
1082 |
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|
1083 ierr = t_ierr; |
21786
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|
1084 |
31607
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|
1085 retval = bessel_return_value (y, ierr); |
21786
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|
1086 } |
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|
1087 else |
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|
1088 { |
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|
1089 alpha = -alpha; |
22954
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|
1090 |
31607
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|
1091 static const FloatComplex eye = FloatComplex (0.0, 1.0); |
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|
1092 |
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|
1093 FloatComplex tmp = exp (-static_cast<float> (M_PI) * alpha * eye) |
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1094 * cbesh2 (z, alpha, kode, ierr); |
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|
1095 |
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|
1096 retval = bessel_return_value (tmp, ierr); |
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|
1097 } |
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|
1098 |
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|
1099 return retval; |
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1100 } |
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|
1101 |
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1102 typedef FloatComplex (*fptr) (const FloatComplex&, float, int, |
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1103 octave_idx_type&); |
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1104 |
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|
1105 static inline FloatComplex |
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|
1106 do_bessel (fptr f, const char *, float alpha, const FloatComplex& x, |
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|
1107 bool scaled, octave_idx_type& ierr) |
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1108 { |
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|
1109 FloatComplex retval; |
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|
1110 |
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|
1111 retval = f (x, alpha, (scaled ? 2 : 1), ierr); |
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|
1112 |
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|
1113 return retval; |
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|
1114 } |
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|
1115 |
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|
1116 static inline FloatComplexMatrix |
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1117 do_bessel (fptr f, const char *, float alpha, const FloatComplexMatrix& x, |
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1118 bool scaled, Array<octave_idx_type>& ierr) |
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1119 { |
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1120 octave_idx_type nr = x.rows (); |
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1121 octave_idx_type nc = x.cols (); |
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1122 |
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1123 FloatComplexMatrix retval (nr, nc); |
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1124 |
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1125 ierr.resize (dim_vector (nr, nc)); |
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1126 |
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1127 for (octave_idx_type j = 0; j < nc; j++) |
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1128 for (octave_idx_type i = 0; i < nr; i++) |
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1129 retval(i, j) = f (x(i, j), alpha, (scaled ? 2 : 1), ierr(i, j)); |
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1130 |
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1131 return retval; |
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1132 } |
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1133 |
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1134 static inline FloatComplexMatrix |
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1135 do_bessel (fptr f, const char *, const FloatMatrix& alpha, |
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1136 const FloatComplex& x, |
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1137 bool scaled, Array<octave_idx_type>& ierr) |
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1138 { |
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1139 octave_idx_type nr = alpha.rows (); |
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1140 octave_idx_type nc = alpha.cols (); |
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1141 |
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1142 FloatComplexMatrix retval (nr, nc); |
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1143 |
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1144 ierr.resize (dim_vector (nr, nc)); |
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1145 |
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1146 for (octave_idx_type j = 0; j < nc; j++) |
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1147 for (octave_idx_type i = 0; i < nr; i++) |
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1148 retval(i, j) = f (x, alpha(i, j), (scaled ? 2 : 1), ierr(i, j)); |
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1149 |
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1150 return retval; |
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1151 } |
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1152 |
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1153 static inline FloatComplexMatrix |
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1154 do_bessel (fptr f, const char *fn, const FloatMatrix& alpha, |
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1155 const FloatComplexMatrix& x, bool scaled, |
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1156 Array<octave_idx_type>& ierr) |
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1157 { |
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1158 FloatComplexMatrix retval; |
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1159 |
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1160 octave_idx_type x_nr = x.rows (); |
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1161 octave_idx_type x_nc = x.cols (); |
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1162 |
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1163 octave_idx_type alpha_nr = alpha.rows (); |
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1164 octave_idx_type alpha_nc = alpha.cols (); |
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1165 |
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1166 if (x_nr != alpha_nr || x_nc != alpha_nc) |
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1167 (*current_liboctave_error_handler) |
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1168 ("%s: the sizes of alpha and x must conform", fn); |
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1169 |
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1170 octave_idx_type nr = x_nr; |
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1171 octave_idx_type nc = x_nc; |
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1172 |
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1173 retval.resize (nr, nc); |
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1174 |
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1175 ierr.resize (dim_vector (nr, nc)); |
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1176 |
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1177 for (octave_idx_type j = 0; j < nc; j++) |
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1178 for (octave_idx_type i = 0; i < nr; i++) |
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1179 retval(i, j) = f (x(i, j), alpha(i, j), (scaled ? 2 : 1), ierr(i, j)); |
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1180 |
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1181 return retval; |
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1182 } |
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1183 |
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1184 static inline FloatComplexNDArray |
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1185 do_bessel (fptr f, const char *, float alpha, const FloatComplexNDArray& x, |
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1186 bool scaled, Array<octave_idx_type>& ierr) |
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1187 { |
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1188 const dim_vector& dv = x.dims (); |
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1189 octave_idx_type nel = dv.numel (); |
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1190 FloatComplexNDArray retval (dv); |
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1191 |
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1192 ierr.resize (dv); |
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1193 |
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1194 for (octave_idx_type i = 0; i < nel; i++) |
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1195 retval(i) = f (x(i), alpha, (scaled ? 2 : 1), ierr(i)); |
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1196 |
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1197 return retval; |
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1198 } |
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1199 |
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1200 static inline FloatComplexNDArray |
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1201 do_bessel (fptr f, const char *, const FloatNDArray& alpha, |
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1202 const FloatComplex& x, bool scaled, Array<octave_idx_type>& ierr) |
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1203 { |
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1204 const dim_vector& dv = alpha.dims (); |
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1205 octave_idx_type nel = dv.numel (); |
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1206 FloatComplexNDArray retval (dv); |
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1207 |
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1208 ierr.resize (dv); |
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1209 |
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1210 for (octave_idx_type i = 0; i < nel; i++) |
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1211 retval(i) = f (x, alpha(i), (scaled ? 2 : 1), ierr(i)); |
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1212 |
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1213 return retval; |
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1214 } |
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1215 |
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1216 static inline FloatComplexNDArray |
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1217 do_bessel (fptr f, const char *fn, const FloatNDArray& alpha, |
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1218 const FloatComplexNDArray& x, bool scaled, |
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1219 Array<octave_idx_type>& ierr) |
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1220 { |
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1221 const dim_vector& dv = x.dims (); |
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1222 FloatComplexNDArray retval; |
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1223 |
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1224 if (dv != alpha.dims ()) |
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1225 (*current_liboctave_error_handler) |
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1226 ("%s: the sizes of alpha and x must conform", fn); |
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1227 |
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1228 octave_idx_type nel = dv.numel (); |
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1229 |
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1230 retval.resize (dv); |
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1231 ierr.resize (dv); |
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1232 |
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1233 for (octave_idx_type i = 0; i < nel; i++) |
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1234 retval(i) = f (x(i), alpha(i), (scaled ? 2 : 1), ierr(i)); |
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1235 |
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|
1236 return retval; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1237 } |
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|
1238 |
31607
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Rik <rik@octave.org>
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diff
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|
1239 static inline FloatComplexMatrix |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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changeset
|
1240 do_bessel (fptr f, const char *, const FloatRowVector& alpha, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1241 const FloatComplexColumnVector& x, bool scaled, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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|
1242 Array<octave_idx_type>& ierr) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
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|
1243 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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31605
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changeset
|
1244 octave_idx_type nr = x.numel (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
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|
1245 octave_idx_type nc = alpha.numel (); |
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|
1246 |
31607
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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changeset
|
1247 FloatComplexMatrix retval (nr, nc); |
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|
1248 |
31607
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1249 ierr.resize (dim_vector (nr, nc)); |
21786
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John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1250 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1251 for (octave_idx_type j = 0; j < nc; j++) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
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|
1252 for (octave_idx_type i = 0; i < nr; i++) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
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|
1253 retval(i, j) = f (x(i), alpha(j), (scaled ? 2 : 1), ierr(i, j)); |
21786
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|
1254 |
31607
aac27ad79be6
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Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1255 return retval; |
aac27ad79be6
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Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1256 } |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1257 |
22954
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
parents:
22755
diff
changeset
|
1258 #define SS_BESSEL(name, fcn) \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
parents:
22755
diff
changeset
|
1259 FloatComplex \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
parents:
22755
diff
changeset
|
1260 name (float alpha, const FloatComplex& x, bool scaled, \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
parents:
22755
diff
changeset
|
1261 octave_idx_type& ierr) \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
parents:
22755
diff
changeset
|
1262 { \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
parents:
22755
diff
changeset
|
1263 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
21786
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John W. Eaton <jwe@octave.org>
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|
1264 } |
df064166f180
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1265 |
22197
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
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22135
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changeset
|
1266 #define SM_BESSEL(name, fcn) \ |
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents:
22135
diff
changeset
|
1267 FloatComplexMatrix \ |
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents:
22135
diff
changeset
|
1268 name (float alpha, const FloatComplexMatrix& x, bool scaled, \ |
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents:
22135
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changeset
|
1269 Array<octave_idx_type>& ierr) \ |
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
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22135
diff
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|
1270 { \ |
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
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|
1271 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
21786
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John W. Eaton <jwe@octave.org>
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|
1272 } |
df064166f180
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|
1273 |
22197
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changeset
|
1274 #define MS_BESSEL(name, fcn) \ |
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
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22135
diff
changeset
|
1275 FloatComplexMatrix \ |
21786
df064166f180
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John W. Eaton <jwe@octave.org>
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changeset
|
1276 name (const FloatMatrix& alpha, const FloatComplex& x, bool scaled, \ |
22197
e43d83253e28
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|
1277 Array<octave_idx_type>& ierr) \ |
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents:
22135
diff
changeset
|
1278 { \ |
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
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22135
diff
changeset
|
1279 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
21786
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John W. Eaton <jwe@octave.org>
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diff
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|
1280 } |
df064166f180
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|
1281 |
22197
e43d83253e28
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|
1282 #define MM_BESSEL(name, fcn) \ |
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents:
22135
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|
1283 FloatComplexMatrix \ |
22954
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
parents:
22755
diff
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|
1284 name (const FloatMatrix& alpha, const FloatComplexMatrix& x, \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
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|
1285 bool scaled, Array<octave_idx_type>& ierr) \ |
22197
e43d83253e28
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|
1286 { \ |
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
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22135
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changeset
|
1287 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
21786
df064166f180
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John W. Eaton <jwe@octave.org>
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|
1288 } |
df064166f180
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John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
1289 |
22197
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22135
diff
changeset
|
1290 #define SN_BESSEL(name, fcn) \ |
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
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22135
diff
changeset
|
1291 FloatComplexNDArray \ |
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents:
22135
diff
changeset
|
1292 name (float alpha, const FloatComplexNDArray& x, bool scaled, \ |
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
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22135
diff
changeset
|
1293 Array<octave_idx_type>& ierr) \ |
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refill multi-line macro definitions
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22135
diff
changeset
|
1294 { \ |
e43d83253e28
refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
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22135
diff
changeset
|
1295 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
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df064166f180
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John W. Eaton <jwe@octave.org>
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|
1296 } |
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changeset
|
1297 |
22954
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
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22755
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|
1298 #define NS_BESSEL(name, fcn) \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
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22755
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changeset
|
1299 FloatComplexNDArray \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
parents:
22755
diff
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|
1300 name (const FloatNDArray& alpha, const FloatComplex& x, \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
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22755
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|
1301 bool scaled, Array<octave_idx_type>& ierr) \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
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diff
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|
1302 { \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
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22755
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changeset
|
1303 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
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|
1304 } |
df064166f180
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|
1305 |
22197
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|
1306 #define NN_BESSEL(name, fcn) \ |
e43d83253e28
refill multi-line macro definitions
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22135
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|
1307 FloatComplexNDArray \ |
22954
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
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|
1308 name (const FloatNDArray& alpha, const FloatComplexNDArray& x, \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
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|
1309 bool scaled, Array<octave_idx_type>& ierr) \ |
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|
1310 { \ |
e43d83253e28
refill multi-line macro definitions
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|
1311 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
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|
1312 } |
df064166f180
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|
1313 |
22954
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* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
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|
1314 #define RC_BESSEL(name, fcn) \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
John W. Eaton <jwe@octave.org>
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|
1315 FloatComplexMatrix \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
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22755
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|
1316 name (const FloatRowVector& alpha, \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
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|
1317 const FloatComplexColumnVector& x, bool scaled, \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
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|
1318 Array<octave_idx_type>& ierr) \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
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|
1319 { \ |
6cd3e9acf443
* lo-specfun.cc: Use F77_INT in calls to Fortran subroutines.
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|
1320 return do_bessel (fcn, #name, alpha, x, scaled, ierr); \ |
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|
1321 } |
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|
1322 |
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|
1323 #define ALL_BESSEL(name, fcn) \ |
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|
1324 SS_BESSEL (name, fcn) \ |
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|
1325 SM_BESSEL (name, fcn) \ |
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|
1326 MS_BESSEL (name, fcn) \ |
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|
1327 MM_BESSEL (name, fcn) \ |
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|
1328 SN_BESSEL (name, fcn) \ |
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|
1329 NS_BESSEL (name, fcn) \ |
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|
1330 NN_BESSEL (name, fcn) \ |
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|
1331 RC_BESSEL (name, fcn) |
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|
1332 |
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|
1333 ALL_BESSEL (besselj, cbesj) |
aac27ad79be6
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|
1334 ALL_BESSEL (bessely, cbesy) |
aac27ad79be6
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|
1335 ALL_BESSEL (besseli, cbesi) |
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|
1336 ALL_BESSEL (besselk, cbesk) |
aac27ad79be6
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|
1337 ALL_BESSEL (besselh1, cbesh1) |
aac27ad79be6
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|
1338 ALL_BESSEL (besselh2, cbesh2) |
3220 | 1339 |
7789
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|
1340 #undef ALL_BESSEL |
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|
1341 #undef SS_BESSEL |
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|
1342 #undef SM_BESSEL |
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|
1343 #undef MS_BESSEL |
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|
1344 #undef MM_BESSEL |
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|
1345 #undef SN_BESSEL |
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changeset
|
1346 #undef NS_BESSEL |
82be108cc558
First attempt at single precision tyeps
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changeset
|
1347 #undef NN_BESSEL |
82be108cc558
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changeset
|
1348 #undef RC_BESSEL |
82be108cc558
First attempt at single precision tyeps
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|
1349 |
31607
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|
1350 Complex |
aac27ad79be6
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|
1351 biry (const Complex& z, bool deriv, bool scaled, octave_idx_type& ierr) |
aac27ad79be6
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Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1352 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1353 double ar = 0.0; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1354 double ai = 0.0; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1355 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1356 double zr = z.real (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1357 double zi = z.imag (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1358 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1359 F77_INT id = (deriv ? 1 : 0); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1360 F77_INT t_ierr; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1361 F77_INT sc = (scaled ? 2 : 1); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1362 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1363 F77_FUNC (zbiry, ZBIRY) (zr, zi, id, sc, ar, ai, t_ierr); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1364 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1365 ierr = t_ierr; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1366 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1367 if (zi == 0.0 && (! scaled || zr >= 0.0)) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1368 ai = 0.0; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1369 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
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|
1370 return bessel_return_value (Complex (ar, ai), ierr); |
aac27ad79be6
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Rik <rik@octave.org>
parents:
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|
1371 } |
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1372 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1373 ComplexMatrix |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1374 biry (const ComplexMatrix& z, bool deriv, bool scaled, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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changeset
|
1375 Array<octave_idx_type>& ierr) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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changeset
|
1376 { |
aac27ad79be6
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Rik <rik@octave.org>
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diff
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|
1377 octave_idx_type nr = z.rows (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1378 octave_idx_type nc = z.cols (); |
aac27ad79be6
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Rik <rik@octave.org>
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changeset
|
1379 |
aac27ad79be6
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Rik <rik@octave.org>
parents:
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diff
changeset
|
1380 ComplexMatrix retval (nr, nc); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1381 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1382 ierr.resize (dim_vector (nr, nc)); |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1383 |
31607
aac27ad79be6
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|
1384 for (octave_idx_type j = 0; j < nc; j++) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1385 for (octave_idx_type i = 0; i < nr; i++) |
aac27ad79be6
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Rik <rik@octave.org>
parents:
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diff
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|
1386 retval(i, j) = biry (z(i, j), deriv, scaled, ierr(i, j)); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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changeset
|
1387 |
aac27ad79be6
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|
1388 return retval; |
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changeset
|
1389 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1390 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1391 ComplexNDArray |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1392 biry (const ComplexNDArray& z, bool deriv, bool scaled, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1393 Array<octave_idx_type>& ierr) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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|
1394 { |
32598
2f3b54f81947
avoid dim_vector copies in more places where possible (bug #64962)
John W. Eaton <jwe@octave.org>
parents:
32590
diff
changeset
|
1395 const dim_vector& dv = z.dims (); |
31607
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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changeset
|
1396 octave_idx_type nel = dv.numel (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1397 ComplexNDArray retval (dv); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1398 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1399 ierr.resize (dv); |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1400 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1401 for (octave_idx_type i = 0; i < nel; i++) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1402 retval(i) = biry (z(i), deriv, scaled, ierr(i)); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1403 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1404 return retval; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1405 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1406 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1407 FloatComplex |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1408 biry (const FloatComplex& z, bool deriv, bool scaled, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1409 octave_idx_type& ierr) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1410 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1411 FloatComplex a; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1412 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1413 F77_INT id = (deriv ? 1 : 0); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1414 F77_INT t_ierr; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1415 F77_INT sc = (scaled ? 2 : 1); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1416 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1417 F77_FUNC (cbiry, CBIRY) (F77_CONST_CMPLX_ARG (&z), id, sc, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1418 F77_CMPLX_ARG (&a), t_ierr); |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1419 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1420 ierr = t_ierr; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1421 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1422 float ar = a.real (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1423 float ai = a.imag (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1424 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1425 if (z.imag () == 0.0 && (! scaled || z.real () >= 0.0)) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1426 ai = 0.0; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1427 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1428 return bessel_return_value (FloatComplex (ar, ai), ierr); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1429 } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1430 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1431 FloatComplexMatrix |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1432 biry (const FloatComplexMatrix& z, bool deriv, bool scaled, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1433 Array<octave_idx_type>& ierr) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1434 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1435 octave_idx_type nr = z.rows (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1436 octave_idx_type nc = z.cols (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1437 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1438 FloatComplexMatrix retval (nr, nc); |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1439 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1440 ierr.resize (dim_vector (nr, nc)); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1441 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1442 for (octave_idx_type j = 0; j < nc; j++) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1443 for (octave_idx_type i = 0; i < nr; i++) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1444 retval(i, j) = biry (z(i, j), deriv, scaled, ierr(i, j)); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1445 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1446 return retval; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1447 } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1448 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1449 FloatComplexNDArray |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1450 biry (const FloatComplexNDArray& z, bool deriv, bool scaled, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1451 Array<octave_idx_type>& ierr) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1452 { |
32598
2f3b54f81947
avoid dim_vector copies in more places where possible (bug #64962)
John W. Eaton <jwe@octave.org>
parents:
32590
diff
changeset
|
1453 const dim_vector& dv = z.dims (); |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1454 octave_idx_type nel = dv.numel (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1455 FloatComplexNDArray retval (dv); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1456 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1457 ierr.resize (dv); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1458 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1459 for (octave_idx_type i = 0; i < nel; i++) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1460 retval(i) = biry (z(i), deriv, scaled, ierr(i)); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1461 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1462 return retval; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1463 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1464 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1465 // Real and complex Dawson function (= scaled erfi) from Faddeeva package |
32590
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
1466 double |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
1467 dawson (double x) { return Faddeeva::Dawson (x); } |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
1468 float |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
1469 dawson (float x) { return Faddeeva::Dawson (x); } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1470 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1471 Complex |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1472 dawson (const Complex& x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1473 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1474 return Faddeeva::Dawson (x); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1475 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1476 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1477 FloatComplex |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1478 dawson (const FloatComplex& x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1479 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1480 Complex xd (x.real (), x.imag ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1481 Complex ret; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1482 ret = Faddeeva::Dawson (xd, std::numeric_limits<float>::epsilon ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1483 return FloatComplex (ret.real (), ret.imag ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1484 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1485 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1486 void |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1487 ellipj (double u, double m, double& sn, double& cn, double& dn, double& err) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1488 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1489 static const int Nmax = 16; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1490 double m1, t=0, si_u, co_u, se_u, ta_u, b, c[Nmax], a[Nmax], phi; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1491 int n, Nn, ii; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1492 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1493 if (m < 0 || m > 1) |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1494 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1495 (*current_liboctave_warning_with_id_handler) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1496 ("Octave:ellipj-invalid-m", |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1497 "ellipj: invalid M value, required value 0 <= M <= 1"); |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1498 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1499 sn = cn = dn = lo_ieee_nan_value (); |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1500 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1501 return; |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1502 } |
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1503 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1504 double sqrt_eps = std::sqrt (std::numeric_limits<double>::epsilon ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1505 if (m < sqrt_eps) |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1506 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1507 // For small m, (Abramowitz and Stegun, Section 16.13) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1508 si_u = sin (u); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1509 co_u = cos (u); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1510 t = 0.25*m*(u - si_u*co_u); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1511 sn = si_u - t * co_u; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1512 cn = co_u + t * si_u; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1513 dn = 1 - 0.5*m*si_u*si_u; |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1514 } |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1515 else if ((1 - m) < sqrt_eps) |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1516 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1517 // For m1 = (1-m) small (Abramowitz and Stegun, Section 16.15) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1518 m1 = 1 - m; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1519 si_u = sinh (u); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1520 co_u = cosh (u); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1521 ta_u = tanh (u); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1522 se_u = 1/co_u; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1523 sn = ta_u + 0.25*m1*(si_u*co_u - u)*se_u*se_u; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1524 cn = se_u - 0.25*m1*(si_u*co_u - u)*ta_u*se_u; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1525 dn = se_u + 0.25*m1*(si_u*co_u + u)*ta_u*se_u; |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1526 } |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1527 else |
17502
578805a293e5
ellipj: Move numerical code into liboctave
Mike Miller <mtmiller@ieee.org>
parents:
15852
diff
changeset
|
1528 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1529 // Arithmetic-Geometric Mean (AGM) algorithm |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1530 // (Abramowitz and Stegun, Section 16.4) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1531 a[0] = 1; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1532 b = std::sqrt (1 - m); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1533 c[0] = std::sqrt (m); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1534 for (n = 1; n < Nmax; ++n) |
17502
578805a293e5
ellipj: Move numerical code into liboctave
Mike Miller <mtmiller@ieee.org>
parents:
15852
diff
changeset
|
1535 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1536 a[n] = (a[n - 1] + b)/2; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1537 c[n] = (a[n - 1] - b)/2; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1538 b = std::sqrt (a[n - 1]*b); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1539 if (c[n]/a[n] < std::numeric_limits<double>::epsilon ()) break; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1540 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1541 if (n >= Nmax - 1) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1542 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1543 err = 1; |
17502
578805a293e5
ellipj: Move numerical code into liboctave
Mike Miller <mtmiller@ieee.org>
parents:
15852
diff
changeset
|
1544 return; |
578805a293e5
ellipj: Move numerical code into liboctave
Mike Miller <mtmiller@ieee.org>
parents:
15852
diff
changeset
|
1545 } |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1546 Nn = n; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1547 for (ii = 1; n > 0; ii *= 2, --n) {} // ii = pow(2,Nn) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1548 phi = ii*a[Nn]*u; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1549 for (n = Nn; n > 0; --n) |
17502
578805a293e5
ellipj: Move numerical code into liboctave
Mike Miller <mtmiller@ieee.org>
parents:
15852
diff
changeset
|
1550 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1551 phi = (std::asin ((c[n]/a[n])* sin (phi)) + phi)/2; |
17502
578805a293e5
ellipj: Move numerical code into liboctave
Mike Miller <mtmiller@ieee.org>
parents:
15852
diff
changeset
|
1552 } |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1553 sn = sin (phi); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1554 cn = cos (phi); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1555 dn = std::sqrt (1 - m*sn*sn); |
17502
578805a293e5
ellipj: Move numerical code into liboctave
Mike Miller <mtmiller@ieee.org>
parents:
15852
diff
changeset
|
1556 } |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1557 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1558 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1559 void |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1560 ellipj (const Complex& u, double m, Complex& sn, Complex& cn, Complex& dn, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1561 double& err) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1562 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1563 double m1 = 1 - m, ss1, cc1, dd1; |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
1564 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1565 ellipj (u.imag (), m1, ss1, cc1, dd1, err); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1566 if (u.real () == 0) |
17502
578805a293e5
ellipj: Move numerical code into liboctave
Mike Miller <mtmiller@ieee.org>
parents:
15852
diff
changeset
|
1567 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1568 // u is pure imag: Jacoby imag. transf. |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1569 sn = Complex (0, ss1/cc1); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1570 cn = 1/cc1; // cn.imag = 0; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1571 dn = dd1/cc1; // dn.imag = 0; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1572 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1573 else |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1574 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1575 // u is generic complex |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1576 double ss, cc, dd, ddd; |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
1577 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1578 ellipj (u.real (), m, ss, cc, dd, err); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1579 ddd = cc1*cc1 + m*ss*ss*ss1*ss1; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1580 sn = Complex (ss*dd1/ddd, cc*dd*ss1*cc1/ddd); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1581 cn = Complex (cc*cc1/ddd, -ss*dd*ss1*dd1/ddd); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1582 dn = Complex (dd*cc1*dd1/ddd, -m*ss*cc*ss1/ddd); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1583 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1584 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1585 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1586 // Complex error function from the Faddeeva package |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1587 Complex |
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Rik <rik@octave.org>
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|
1588 erf (const Complex& x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1589 { |
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1590 return Faddeeva::erf (x); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1591 } |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
1592 |
31607
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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changeset
|
1593 FloatComplex |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
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|
1594 erf (const FloatComplex& x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1595 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1596 Complex xd (x.real (), x.imag ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1597 Complex ret = Faddeeva::erf (xd, std::numeric_limits<float>::epsilon ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1598 return FloatComplex (ret.real (), ret.imag ()); |
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1599 } |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
1600 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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changeset
|
1601 // Complex complementary error function from the Faddeeva package |
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maint: Re-indent code after switch to using namespace macros.
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|
1602 Complex |
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maint: Re-indent code after switch to using namespace macros.
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|
1603 erfc (const Complex& x) |
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maint: Re-indent code after switch to using namespace macros.
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|
1604 { |
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maint: Re-indent code after switch to using namespace macros.
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|
1605 return Faddeeva::erfc (x); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1606 } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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|
1607 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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changeset
|
1608 FloatComplex |
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1609 erfc (const FloatComplex& x) |
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1610 { |
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1611 Complex xd (x.real (), x.imag ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1612 Complex ret = Faddeeva::erfc (xd, std::numeric_limits<float>::epsilon ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1613 return FloatComplex (ret.real (), ret.imag ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1614 } |
23668
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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|
1615 |
31607
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maint: Re-indent code after switch to using namespace macros.
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|
1616 // The algorithm for erfcinv is an adaptation of the erfinv algorithm |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1617 // above from P. J. Acklam. It has been modified to run over the |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1618 // different input domain of erfcinv. See the notes for erfinv for an |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1619 // explanation. |
23668
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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|
1620 |
32590
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
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|
1621 static double |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
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|
1622 do_erfcinv (double x, bool refine) |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1623 { |
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1624 // Coefficients of rational approximation. |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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changeset
|
1625 static const double a[] = |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1626 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1627 -2.806989788730439e+01, 1.562324844726888e+02, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1628 -1.951109208597547e+02, 9.783370457507161e+01, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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|
1629 -2.168328665628878e+01, 1.772453852905383e+00 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1630 }; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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changeset
|
1631 static const double b[] = |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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changeset
|
1632 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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changeset
|
1633 -5.447609879822406e+01, 1.615858368580409e+02, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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|
1634 -1.556989798598866e+02, 6.680131188771972e+01, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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|
1635 -1.328068155288572e+01 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1636 }; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1637 static const double c[] = |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1638 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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changeset
|
1639 -5.504751339936943e-03, -2.279687217114118e-01, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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|
1640 -1.697592457770869e+00, -1.802933168781950e+00, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
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|
1641 3.093354679843505e+00, 2.077595676404383e+00 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1642 }; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1643 static const double d[] = |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1644 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1645 7.784695709041462e-03, 3.224671290700398e-01, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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changeset
|
1646 2.445134137142996e+00, 3.754408661907416e+00 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1647 }; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1648 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1649 static const double spi2 = 8.862269254527579e-01; // sqrt(pi)/2. |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
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|
1650 static const double pbreak_lo = 0.04850; // 1-pbreak |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1651 static const double pbreak_hi = 1.95150; // 1+pbreak |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
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|
1652 double y; |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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23662
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changeset
|
1653 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1654 // Select case. |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1655 if (x >= pbreak_lo && x <= pbreak_hi) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1656 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1657 // Middle region. |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1658 const double q = 0.5*(1-x), r = q*q; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
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changeset
|
1659 const double yn = (((((a[0]*r + a[1])*r + a[2])*r + a[3])*r + a[4])*r + a[5])*q; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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|
1660 const double yd = ((((b[0]*r + b[1])*r + b[2])*r + b[3])*r + b[4])*r + 1.0; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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changeset
|
1661 y = yn / yd; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1662 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1663 else if (x > 0.0 && x < 2.0) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1664 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1665 // Tail region. |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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changeset
|
1666 const double q = (x < 1 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
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|
1667 ? std::sqrt (-2*std::log (0.5*x)) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1668 : std::sqrt (-2*std::log (0.5*(2-x)))); |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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changeset
|
1669 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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changeset
|
1670 const double yn = ((((c[0]*q + c[1])*q + c[2])*q + c[3])*q + c[4])*q + c[5]; |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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|
1671 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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changeset
|
1672 const double yd = (((d[0]*q + d[1])*q + d[2])*q + d[3])*q + 1.0; |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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|
1673 |
31607
aac27ad79be6
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|
1674 y = yn / yd; |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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changeset
|
1675 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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changeset
|
1676 if (x < pbreak_lo) |
aac27ad79be6
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diff
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|
1677 y = -y; |
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maint: Re-indent code after switch to using namespace macros.
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changeset
|
1678 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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changeset
|
1679 else if (x == 0.0) |
aac27ad79be6
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|
1680 return numeric_limits<double>::Inf (); |
aac27ad79be6
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|
1681 else if (x == 2.0) |
aac27ad79be6
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|
1682 return -numeric_limits<double>::Inf (); |
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maint: Re-indent code after switch to using namespace macros.
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|
1683 else |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1684 return numeric_limits<double>::NaN (); |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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|
1685 |
31607
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maint: Re-indent code after switch to using namespace macros.
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|
1686 if (refine) |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
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|
1687 { |
31607
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|
1688 // One iteration of Halley's method gives full precision. |
aac27ad79be6
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|
1689 double u = (erf (y) - (1-x)) * spi2 * exp (y*y); |
aac27ad79be6
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|
1690 y -= u / (1 + y*u); |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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|
1691 } |
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
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|
1692 |
31607
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|
1693 return y; |
aac27ad79be6
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changeset
|
1694 } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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|
1695 |
32590
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
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31932
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changeset
|
1696 double |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
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parents:
31932
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changeset
|
1697 erfcinv (double x) |
31607
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maint: Re-indent code after switch to using namespace macros.
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|
1698 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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changeset
|
1699 return do_erfcinv (x, true); |
aac27ad79be6
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|
1700 } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1701 |
32590
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
1702 float |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
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|
1703 erfcinv (float x) |
31607
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1704 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1705 return do_erfcinv (x, false); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1706 } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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|
1707 |
31607
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|
1708 // Real and complex scaled complementary error function from Faddeeva pkg. |
32590
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maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
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|
1709 double |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
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|
1710 erfcx (double x) { return Faddeeva::erfcx (x); } |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
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|
1711 float |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
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|
1712 erfcx (float x) { return Faddeeva::erfcx (x); } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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diff
changeset
|
1713 |
31607
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1714 Complex |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
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|
1715 erfcx (const Complex& x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
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|
1716 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1717 return Faddeeva::erfcx (x); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
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|
1718 } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1719 |
31607
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1720 FloatComplex |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1721 erfcx (const FloatComplex& x) |
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1722 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1723 Complex xd (x.real (), x.imag ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1724 Complex ret; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1725 ret = Faddeeva::erfcx (xd, std::numeric_limits<float>::epsilon ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1726 return FloatComplex (ret.real (), ret.imag ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1727 } |
23668
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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|
1728 |
31607
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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changeset
|
1729 // Real and complex imaginary error function from Faddeeva package |
32590
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maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
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|
1730 double |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
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|
1731 erfi (double x) { return Faddeeva::erfi (x); } |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
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|
1732 float |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
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|
1733 erfi (float x) { return Faddeeva::erfi (x); } |
23668
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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|
1734 |
31607
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1735 Complex |
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|
1736 erfi (const Complex& x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1737 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1738 return Faddeeva::erfi (x); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1739 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1740 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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changeset
|
1741 FloatComplex |
aac27ad79be6
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Rik <rik@octave.org>
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|
1742 erfi (const FloatComplex& x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1743 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1744 Complex xd (x.real (), x.imag ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1745 Complex ret = Faddeeva::erfi (xd, std::numeric_limits<float>::epsilon ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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|
1746 return FloatComplex (ret.real (), ret.imag ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1747 } |
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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changeset
|
1748 |
aac27ad79be6
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|
1749 // This algorithm is due to P. J. Acklam. |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1750 // |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1751 // See http://home.online.no/~pjacklam/notes/invnorm/ |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1752 // |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1753 // The rational approximation has relative accuracy 1.15e-9 in the whole |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1754 // region. For doubles, it is refined by a single step of Halley's 3rd |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1755 // order method. For single precision, the accuracy is already OK, so |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1756 // we skip it to get faster evaluation. |
23668
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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|
1757 |
32590
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
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|
1758 static double |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
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|
1759 do_erfinv (double x, bool refine) |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1760 { |
aac27ad79be6
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Rik <rik@octave.org>
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|
1761 // Coefficients of rational approximation. |
aac27ad79be6
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Rik <rik@octave.org>
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|
1762 static const double a[] = |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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|
1763 { |
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Rik <rik@octave.org>
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|
1764 -2.806989788730439e+01, 1.562324844726888e+02, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1765 -1.951109208597547e+02, 9.783370457507161e+01, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1766 -2.168328665628878e+01, 1.772453852905383e+00 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1767 }; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1768 static const double b[] = |
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|
1769 { |
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Rik <rik@octave.org>
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|
1770 -5.447609879822406e+01, 1.615858368580409e+02, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1771 -1.556989798598866e+02, 6.680131188771972e+01, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1772 -1.328068155288572e+01 |
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maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1773 }; |
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|
1774 static const double c[] = |
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maint: Re-indent code after switch to using namespace macros.
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|
1775 { |
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Rik <rik@octave.org>
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|
1776 -5.504751339936943e-03, -2.279687217114118e-01, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1777 -1.697592457770869e+00, -1.802933168781950e+00, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1778 3.093354679843505e+00, 2.077595676404383e+00 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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|
1779 }; |
aac27ad79be6
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|
1780 static const double d[] = |
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|
1781 { |
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|
1782 7.784695709041462e-03, 3.224671290700398e-01, |
aac27ad79be6
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Rik <rik@octave.org>
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|
1783 2.445134137142996e+00, 3.754408661907416e+00 |
aac27ad79be6
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Rik <rik@octave.org>
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|
1784 }; |
23668
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
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|
1785 |
31607
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|
1786 static const double spi2 = 8.862269254527579e-01; // sqrt(pi)/2. |
aac27ad79be6
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Rik <rik@octave.org>
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|
1787 static const double pbreak = 0.95150; |
aac27ad79be6
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|
1788 double ax = fabs (x), y; |
23668
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
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|
1789 |
31607
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|
1790 // Select case. |
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|
1791 if (ax <= pbreak) |
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|
1792 { |
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|
1793 // Middle region. |
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|
1794 const double q = 0.5 * x, r = q*q; |
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|
1795 const double yn = (((((a[0]*r + a[1])*r + a[2])*r + a[3])*r + a[4])*r + a[5])*q; |
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|
1796 const double yd = ((((b[0]*r + b[1])*r + b[2])*r + b[3])*r + b[4])*r + 1.0; |
aac27ad79be6
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|
1797 y = yn / yd; |
23668
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
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|
1798 } |
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|
1799 else if (ax < 1.0) |
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
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|
1800 { |
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|
1801 // Tail region. |
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|
1802 const double q = std::sqrt (-2*std::log (0.5*(1-ax))); |
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|
1803 const double yn = ((((c[0]*q + c[1])*q + c[2])*q + c[3])*q + c[4])*q + c[5]; |
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|
1804 const double yd = (((d[0]*q + d[1])*q + d[2])*q + d[3])*q + 1.0; |
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|
1805 y = yn / yd * math::signum (-x); |
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|
1806 } |
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|
1807 else if (ax == 1.0) |
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|
1808 return numeric_limits<double>::Inf () * math::signum (x); |
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|
1809 else |
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|
1810 return numeric_limits<double>::NaN (); |
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
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|
1811 |
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|
1812 if (refine) |
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|
1813 { |
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|
1814 // One iteration of Halley's method gives full precision. |
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|
1815 double u = (erf (y) - x) * spi2 * exp (y*y); |
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|
1816 y -= u / (1 + y*u); |
23668
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1817 } |
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1818 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1819 return y; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1820 } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1821 |
32590
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
1822 double |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
1823 erfinv (double x) |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1824 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1825 return do_erfinv (x, true); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1826 } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1827 |
32590
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
1828 float |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
1829 erfinv (float x) |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1830 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1831 return do_erfinv (x, false); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1832 } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1833 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1834 Complex |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1835 expm1 (const Complex& x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1836 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1837 Complex retval; |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1838 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1839 if (std::abs (x) < 1) |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1840 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1841 double im = x.imag (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1842 double u = expm1 (x.real ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1843 double v = sin (im/2); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1844 v = -2*v*v; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1845 retval = Complex (u*v + u + v, (u+1) * sin (im)); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1846 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1847 else |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1848 retval = std::exp (x) - Complex (1); |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1849 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1850 return retval; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1851 } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1852 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1853 FloatComplex |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1854 expm1 (const FloatComplex& x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1855 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1856 FloatComplex retval; |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1857 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1858 if (std::abs (x) < 1) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1859 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1860 float im = x.imag (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1861 float u = expm1 (x.real ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1862 float v = sin (im/2); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1863 v = -2*v*v; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1864 retval = FloatComplex (u*v + u + v, (u+1) * sin (im)); |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1865 } |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1866 else |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1867 retval = std::exp (x) - FloatComplex (1); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1868 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1869 return retval; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1870 } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1871 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1872 double |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1873 gamma (double x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1874 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1875 double result; |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1876 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1877 // Special cases for (near) compatibility with Matlab instead of tgamma. |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1878 // Matlab does not have -0. |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1879 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1880 if (x == 0) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1881 result = (math::negative_sign (x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1882 ? -numeric_limits<double>::Inf () |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1883 : numeric_limits<double>::Inf ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1884 else if ((x < 0 && math::x_nint (x) == x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1885 || math::isinf (x)) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1886 result = numeric_limits<double>::Inf (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1887 else if (math::isnan (x)) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1888 result = numeric_limits<double>::NaN (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1889 else |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1890 result = std::tgamma (x); |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1891 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1892 return result; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1893 } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1894 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1895 float |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1896 gamma (float x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1897 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1898 float result; |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1899 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1900 // Special cases for (near) compatibility with Matlab instead of tgamma. |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1901 // Matlab does not have -0. |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
1902 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1903 if (x == 0) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1904 result = (math::negative_sign (x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1905 ? -numeric_limits<float>::Inf () |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1906 : numeric_limits<float>::Inf ()); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1907 else if ((x < 0 && math::x_nint (x) == x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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changeset
|
1908 || math::isinf (x)) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1909 result = numeric_limits<float>::Inf (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1910 else if (math::isnan (x)) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1911 result = numeric_limits<float>::NaN (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1912 else |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1913 result = std::tgammaf (x); |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
1914 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1915 return result; |
aac27ad79be6
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Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1916 } |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
1917 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1918 Complex |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1919 log1p (const Complex& x) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
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diff
changeset
|
1920 { |
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parents:
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diff
changeset
|
1921 Complex retval; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1922 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1923 double r = x.real (), i = x.imag (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff
changeset
|
1924 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1925 if (fabs (r) < 0.5 && fabs (i) < 0.5) |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
1926 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1927 double u = 2*r + r*r + i*i; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1928 retval = Complex (log1p (u / (1+std::sqrt (u+1))), |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
1929 atan2 (i, 1 + r)); |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
1930 } |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1931 else |
aac27ad79be6
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Rik <rik@octave.org>
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diff
changeset
|
1932 retval = std::log (Complex (1) + x); |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
1933 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1934 return retval; |
aac27ad79be6
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parents:
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diff
changeset
|
1935 } |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
1936 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
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|
1937 FloatComplex |
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1938 log1p (const FloatComplex& x) |
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1939 { |
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1940 FloatComplex retval; |
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1941 |
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1942 float r = x.real (), i = x.imag (); |
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1943 |
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1944 if (fabs (r) < 0.5 && fabs (i) < 0.5) |
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1945 { |
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1946 float u = 2*r + r*r + i*i; |
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1947 retval = FloatComplex (log1p (u / (1+std::sqrt (u+1))), |
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1948 atan2 (i, 1 + r)); |
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1949 } |
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1950 else |
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1951 retval = std::log (FloatComplex (1) + x); |
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1952 |
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1953 return retval; |
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1954 } |
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1955 |
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1956 static const double pi = 3.14159265358979323846; |
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1957 |
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1958 template <typename T> |
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1959 static inline T |
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1960 xlog (const T& x) |
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1961 { |
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1962 return log (x); |
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1963 } |
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1964 |
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1965 template <> |
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1966 inline double |
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1967 xlog (const double& x) |
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1968 { |
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1969 return std::log (x); |
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1970 } |
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1971 |
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1972 template <> |
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1973 inline float |
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1974 xlog (const float& x) |
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1975 { |
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1976 return std::log (x); |
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1977 } |
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1978 |
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1979 template <typename T> |
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1980 static T |
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1981 lanczos_approximation_psi (const T zc) |
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1982 { |
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1983 // Coefficients for C.Lanczos expansion of psi function from XLiFE++ |
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1984 // gammaFunctions psi_coef[k] = - (2k+1) * lg_coef[k] (see melina++ |
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1985 // gamma functions -1/12, 3/360,-5/1260, 7/1680,-9/1188, |
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1986 // 11*691/360360,-13/156, 15*3617/122400, ? , ? |
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1987 static const T dg_coeff[10] = |
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1988 { |
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1989 -0.83333333333333333e-1, 0.83333333333333333e-2, |
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1990 -0.39682539682539683e-2, 0.41666666666666667e-2, |
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1991 -0.75757575757575758e-2, 0.21092796092796093e-1, |
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1992 -0.83333333333333333e-1, 0.4432598039215686, |
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1993 -0.3053954330270122e+1, 0.125318899521531e+2 |
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1994 }; |
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1995 |
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1996 T overz2 = T (1.0) / (zc * zc); |
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1997 T overz2k = overz2; |
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1998 |
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1999 T p = 0; |
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2000 for (octave_idx_type k = 0; k < 10; k++, overz2k *= overz2) |
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2001 p += dg_coeff[k] * overz2k; |
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2002 p += xlog (zc) - T (0.5) / zc; |
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2003 return p; |
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|
2004 } |
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|
2005 |
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2006 template <typename T> |
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|
2007 T |
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2008 xpsi (T z) |
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|
2009 { |
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|
2010 static const double euler_mascheroni |
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|
2011 = 0.577215664901532860606512090082402431042; |
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2012 |
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2013 const bool is_int = (std::floor (z) == z); |
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|
2014 |
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|
2015 T p = 0; |
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|
2016 if (z <= 0) |
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|
2017 { |
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|
2018 // limits - zeros of the gamma function |
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|
2019 if (is_int) |
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|
2020 p = -numeric_limits<T>::Inf (); // Matlab returns -Inf for psi (0) |
20154
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2021 else |
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|
2022 // Abramowitz and Stegun, page 259, eq 6.3.7 |
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|
2023 p = psi (1 - z) - (pi / tan (pi * z)); |
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|
2024 } |
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|
2025 else if (is_int) |
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|
2026 { |
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|
2027 // Abramowitz and Stegun, page 258, eq 6.3.2 |
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|
2028 p = - euler_mascheroni; |
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2029 for (octave_idx_type k = z - 1; k > 0; k--) |
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|
2030 p += 1.0 / k; |
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|
2031 } |
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|
2032 else if (std::floor (z + 0.5) == z + 0.5) |
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|
2033 { |
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|
2034 // Abramowitz and Stegun, page 258, eq 6.3.3 and 6.3.4 |
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|
2035 for (octave_idx_type k = z; k > 0; k--) |
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|
2036 p += 1.0 / (2 * k - 1); |
21786
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John W. Eaton <jwe@octave.org>
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|
2037 |
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|
2038 p = - euler_mascheroni - 2 * std::log (2) + 2 * (p); |
20154
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New function psi to compute the digamma function.
Carnë Draug <carandraug@octave.org>
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|
2039 } |
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|
2040 else |
20154
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|
2041 { |
45565ecec019
New function psi to compute the digamma function.
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|
2042 // adapted from XLiFE++ gammaFunctions |
45565ecec019
New function psi to compute the digamma function.
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|
2043 |
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|
2044 T zc = z; |
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|
2045 // Use formula for derivative of LogGamma(z) |
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|
2046 if (z < 10) |
20154
45565ecec019
New function psi to compute the digamma function.
Carnë Draug <carandraug@octave.org>
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|
2047 { |
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|
2048 const signed char n = 10 - z; |
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|
2049 for (signed char k = n - 1; k >= 0; k--) |
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|
2050 p -= 1.0 / (k + z); |
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|
2051 zc += n; |
20154
45565ecec019
New function psi to compute the digamma function.
Carnë Draug <carandraug@octave.org>
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|
2052 } |
31607
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|
2053 p += lanczos_approximation_psi (zc); |
21786
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John W. Eaton <jwe@octave.org>
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|
2054 } |
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
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|
2055 |
31607
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|
2056 return p; |
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|
2057 } |
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|
2058 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2059 // explicit instantiations |
32590
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
2060 double |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
2061 psi (double z) { return xpsi (z); } |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
2062 float |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
2063 psi (float z) { return xpsi (z); } |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2064 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2065 template <typename T> |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2066 std::complex<T> |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2067 xpsi (const std::complex<T>& z) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2068 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2069 // adapted from XLiFE++ gammaFunctions |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2070 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2071 typedef typename std::complex<T>::value_type P; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2072 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2073 P z_r = z.real (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2074 P z_ra = z_r; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2075 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2076 std::complex<T> dgam (0.0, 0.0); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2077 if (z.imag () == 0) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2078 dgam = std::complex<T> (psi (z_r), 0.0); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2079 else if (z_r < 0) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2080 dgam = psi (P (1.0) - z)- (P (pi) / tan (P (pi) * z)); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2081 else |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
2082 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2083 // Use formula for derivative of LogGamma(z) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2084 std::complex<T> z_m = z; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2085 if (z_ra < 8) |
20155
1fae49e34a1a
psi: add support for complex numbers.
Carnë Draug <carandraug@octave.org>
parents:
20154
diff
changeset
|
2086 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2087 unsigned char n = 8 - z_ra; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2088 z_m = z + std::complex<T> (n, 0.0); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2089 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2090 // Recurrence formula. For | Re(z) | < 8, use recursively |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2091 // |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2092 // DiGamma(z) = DiGamma(z+1) - 1/z |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2093 std::complex<T> z_p = z + P (n - 1); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2094 for (unsigned char k = n; k > 0; k--, z_p -= 1.0) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2095 dgam -= P (1.0) / z_p; |
20155
1fae49e34a1a
psi: add support for complex numbers.
Carnë Draug <carandraug@octave.org>
parents:
20154
diff
changeset
|
2096 } |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2097 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2098 // for | Re(z) | > 8, use derivative of C.Lanczos expansion for |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2099 // LogGamma |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2100 // |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2101 // psi(z) = log(z) - 1/(2z) - 1/12z^2 + 3/360z^4 - 5/1260z^6 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2102 // + 7/1680z^8 - 9/1188z^10 + ... |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2103 // |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2104 // (Abramowitz&Stegun, page 259, formula 6.3.18 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2105 dgam += lanczos_approximation_psi (z_m); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2106 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2107 return dgam; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2108 } |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
2109 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2110 // explicit instantiations |
32590
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
2111 Complex |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
2112 psi (const Complex& z) { return xpsi (z); } |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
2113 FloatComplex |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
2114 psi (const FloatComplex& z) { return xpsi (z); } |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2115 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2116 template <typename T> |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2117 static inline void |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2118 fortran_psifn (T z, octave_idx_type n, T& ans, octave_idx_type& ierr); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2119 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2120 template <> |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2121 inline void |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2122 fortran_psifn<double> (double z, octave_idx_type n_arg, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2123 double& ans, octave_idx_type& ierr) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2124 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2125 F77_INT n = to_f77_int (n_arg); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2126 F77_INT flag = 0; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2127 F77_INT t_ierr; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2128 F77_XFCN (dpsifn, DPSIFN, (z, n, 1, 1, ans, flag, t_ierr)); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2129 ierr = t_ierr; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2130 } |
21786
df064166f180
use namespace for lo-specfun.h functions
John W. Eaton <jwe@octave.org>
parents:
21782
diff
changeset
|
2131 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2132 template <> |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2133 inline void |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2134 fortran_psifn<float> (float z, octave_idx_type n_arg, |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2135 float& ans, octave_idx_type& ierr) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2136 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2137 F77_INT n = to_f77_int (n_arg); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2138 F77_INT flag = 0; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2139 F77_INT t_ierr; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2140 F77_XFCN (psifn, PSIFN, (z, n, 1, 1, ans, flag, t_ierr)); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2141 ierr = t_ierr; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2142 } |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
2143 |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2144 template <typename T> |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2145 T |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2146 xpsi (octave_idx_type n, T z) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2147 { |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2148 T ans; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2149 octave_idx_type ierr = 0; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2150 fortran_psifn<T> (z, n, ans, ierr); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2151 if (ierr == 0) |
23668
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
Rik <rik@octave.org>
parents:
23662
diff
changeset
|
2152 { |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2153 // Remember that psifn and dpsifn return scales values |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2154 // When n is 1: do nothing since ((-1)**(n+1)/gamma(n+1)) == 1 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2155 // When n is 0: change sign since ((-1)**(n+1)/gamma(n+1)) == -1 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2156 if (n > 1) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2157 // FIXME: xgamma here is a killer for our precision since it grows |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2158 // way too fast. |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2159 ans = ans / (std::pow (-1.0, n + 1) / gamma (double (n+1))); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2160 else if (n == 0) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2161 ans = -ans; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2162 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2163 else if (ierr == 2) |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2164 ans = - numeric_limits<T>::Inf (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2165 else // we probably never get here |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2166 ans = numeric_limits<T>::NaN (); |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2167 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2168 return ans; |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2169 } |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2170 |
32590
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
2171 double |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
2172 psi (octave_idx_type n, double z) { return xpsi (n, z); } |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
2173 float |
3c2c585965cc
maint: C++ style check for liboctave/ before 9.1 release.
Rik <rik@octave.org>
parents:
31932
diff
changeset
|
2174 psi (octave_idx_type n, float z) { return xpsi (n, z); } |
31607
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2175 |
aac27ad79be6
maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents:
31605
diff
changeset
|
2176 Complex |
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2177 rc_lgamma (double x) |
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2178 { |
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2179 double result; |
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a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
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|
2180 |
a6eef0626b2b
Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
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|
2181 #if defined (HAVE_LGAMMA_R) |
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|
2182 int sgngam; |
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2183 result = lgamma_r (x, &sgngam); |
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
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2184 #else |
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2185 result = std::lgamma (x); |
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|
2186 int sgngam = signgam; |
23668
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
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2187 #endif |
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
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|
2188 |
31607
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|
2189 if (sgngam < 0) |
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2190 return result + Complex (0., M_PI); |
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2191 else |
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2192 return result; |
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2193 } |
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
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|
2194 |
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2195 FloatComplex |
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2196 rc_lgamma (float x) |
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2197 { |
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2198 float result; |
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
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|
2199 |
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Promote simple functions from lo-specfun.cc to inline versions in lo-specfun.h.
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|
2200 #if defined (HAVE_LGAMMAF_R) |
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2201 int sgngam; |
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2202 result = lgammaf_r (x, &sgngam); |
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2203 #else |
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2204 result = std::lgammaf (x); |
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2205 int sgngam = signgam; |
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2206 #endif |
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2207 |
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2208 if (sgngam < 0) |
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2209 return result + FloatComplex (0., M_PI); |
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2210 else |
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2211 return result; |
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2212 } |
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2213 |
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|
2214 Complex |
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|
2215 rc_log1p (double x) |
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2216 { |
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2217 return (x < -1.0 |
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2218 ? Complex (std::log (-(1.0 + x)), M_PI) |
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2219 : Complex (log1p (x))); |
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2220 } |
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2221 |
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2222 FloatComplex |
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2223 rc_log1p (float x) |
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2224 { |
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2225 return (x < -1.0f |
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2226 ? FloatComplex (std::log (-(1.0f + x)), M_PI) |
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2227 : FloatComplex (log1p (x))); |
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|
2228 } |
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|
2229 |
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2230 OCTAVE_END_NAMESPACE(math) |
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2231 OCTAVE_END_NAMESPACE(octave) |