Mercurial > octave
annotate scripts/general/integral3.m @ 25054:6652d3823428 stable
maint: Update copyright dates in all source files.
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 30 Mar 2018 09:19:05 -0400 |
parents | 194eb4bd202b |
children | 07c2c42f457e |
rev | line source |
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1 ## Copyright (C) 2017-2018 David Bateman |
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2 ## |
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3 ## This file is part of Octave. |
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4 ## |
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5 ## Octave is free software: you can redistribute it and/or modify it |
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6 ## under the terms of the GNU General Public License as published by |
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7 ## the Free Software Foundation, either version 3 of the License, or |
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8 ## (at your option) any later version. |
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9 ## |
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10 ## Octave is distributed in the hope that it will be useful, but |
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 ## GNU General Public License for more details. |
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14 ## |
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15 ## You should have received a copy of the GNU General Public License |
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16 ## along with Octave; see the file COPYING. If not, see |
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17 ## <https://www.gnu.org/licenses/>. |
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18 |
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19 ## -*- texinfo -*- |
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20 ## @deftypefn {} {@var{q} =} integral3 (@var{f}, @var{xa}, @var{xb}, @var{ya}, @var{yb}, @var{za}, @var{zb}) |
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21 ## @deftypefnx {} {@var{q} =} integral3 (@var{f}, @var{xa}, @var{xb}, @var{ya}, @var{yb}, @var{za}, @var{zb}, @var{prop}, @var{val}, @dots{}) |
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22 ## |
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23 ## Numerically evaluate the three-dimensional integral of @var{f} using |
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24 ## adaptive quadrature over the three-dimensional domain defined by |
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25 ## @var{xa}, @var{xb}, @var{ya}, @var{yb}, @var{za}, @var{zb} (scalars may |
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26 ## be finite or infinite). Additionally, @var{ya} and @var{yb} may be |
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27 ## scalar functions of @var{x} and @var{za}, and @var{zb} maybe be scalar |
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28 ## functions of @var{x} and @var{y}, allowing for integration over |
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29 ## non-rectangular domains. |
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30 ## |
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31 ## @var{f} is a function handle, inline function, or string containing the name |
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32 ## of the function to evaluate. The function @var{f} must be of the form |
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33 ## @math{z = f(x,y)} where @var{x} is a vector and @var{y} is a scalar. It |
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34 ## should return a vector of the same length and orientation as @var{x}. |
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35 ## |
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36 ## Additional optional parameters can be specified using |
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37 ## @qcode{"@var{property}", @var{value}} pairs. Valid properties are: |
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38 ## |
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39 ## @table @code |
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40 ## @item AbsTol |
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41 ## Define the absolute error tolerance for the quadrature. The default |
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42 ## value is 1e-10 (1e-5 for single). |
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43 ## |
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44 ## @item RelTol |
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45 ## Define the relative error tolerance for the quadrature. The default |
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46 ## value is 1e-6 (1e-4 for single). |
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47 ## |
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48 ## @item Method |
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49 ## Specify the two-dimensional integration method to be used, with valid |
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50 ## options being @qcode{"auto"} (default), @qcode{"tiled"}, or |
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51 ## @qcode{"iterated"}. When using @qcode{"auto"}, Octave will choose the |
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52 ## @qcode{"tiled"} method unless any of the integration limits are infinite. |
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53 ## |
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54 ## @item Vectorized |
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55 ## Enable or disable vectorized integration. A value of @code{false} forces |
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56 ## Octave to use only scalar inputs when calling the integrand, which enables |
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57 ## integrands @math{f(x,y)} that have not been vectorized and only accept |
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58 ## @var{x} and @var{y} as scalars to be used. The default value is |
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59 ## @code{true}. |
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60 ## @end table |
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61 ## |
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62 ## Adaptive quadrature is used to minimize the estimate of error until the |
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63 ## following is satisfied: |
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64 ## @tex |
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65 ## $$error \leq \max \left( AbsTol, RelTol\cdot\vert q\vert \right)$$ |
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66 ## @end tex |
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67 ## @ifnottex |
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68 ## |
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69 ## @example |
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70 ## @group |
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71 ## @var{error} <= max (@var{AbsTol}, @var{RelTol}*|@var{q}|) |
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72 ## @end group |
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73 ## @end example |
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74 ## |
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75 ## @end ifnottex |
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76 ## |
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77 ## @var{err} is an approximate bound on the error in the integral |
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78 ## @code{abs (@var{q} - @var{I})}, where @var{I} is the exact value of the |
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79 ## integral. |
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80 ## |
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81 ## Example 1 : integrate over a rectangular volume |
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82 ## |
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83 ## @example |
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84 ## @group |
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85 ## @var{f} = @@(@var{x},@var{y},@var{z}) ones (size (@var{x})); |
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86 ## @var{q} = integral3 (@var{f}, 0, 1, 0, 1, 0, 1) |
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87 ## @result{} @var{q} = 1 |
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88 ## @end group |
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89 ## @end example |
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90 ## |
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91 ## For this constant-value integrand, the result is a volume which is just |
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92 ## @code{@var{Length} * @var{Width} x @var{Height}}. |
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93 ## |
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94 ## Example 2 : integrate over a spherical volume |
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95 ## |
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96 ## @example |
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97 ## @group |
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98 ## @var{f} = @@(@var{x},@var{y}) ones (size (@var{x})); |
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99 ## @var{ymax} = @@(@var{x}) sqrt (1 - @var{x}.^2); |
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100 ## @var{zmax} = @@(@var{x}) sqrt (1 - @var{x}.^2 - @var{y}.^2); |
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101 ## @var{q} = integral3 (@var{f}, 0, 1, 0, @var{ymax}) |
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102 ## @result{} @var{q} = 0.52360 |
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103 ## @end group |
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104 ## @end example |
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105 ## |
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106 ## For this constant-value integrand, the result is a volume which is 1/8th |
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107 ## of a unit sphere or @code{1/8 * 4/3 * pi}. |
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108 ## |
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109 ## Programming Notes: If there are singularities within the integration region |
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110 ## it is best to split the integral and place the singularities on the |
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111 ## boundary. |
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112 ## |
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113 ## Known @sc{matlab} incompatibility: If tolerances are left unspecified, and |
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114 ## any integration limits are of type @code{single}, then Octave's integral |
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115 ## functions automatically reduce the default absolute and relative error |
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116 ## tolerances as specified above. If tighter tolerances are desired they |
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117 ## must be specified. @sc{matlab} leaves the tighter tolerances appropriate |
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118 ## for @code{double} inputs in place regardless of the class of the |
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119 ## integration limits. |
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120 ## |
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121 ## Reference: @nospell{L.F. Shampine}, |
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122 ## @cite{@sc{matlab} program for quadrature in 2D}, Applied Mathematics and |
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123 ## Computation, pp. 266--274, Vol 1, 2008. |
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124 ## |
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125 ## @seealso{triplequad, integral, quad, quadgk, quadv, quadl, |
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126 ## quadcc, trapz, integral2, quad2d, dblquad} |
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127 ## @end deftypefn |
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128 |
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129 function q = integral3 (f, xa, xb, ya, yb, za, zb, varargin) |
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130 |
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131 if (nargin < 7 || mod (nargin, 2) == 0) |
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132 print_usage (); |
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133 endif |
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134 |
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135 if (! is_function_handle (f)) |
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136 print_usage (); |
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137 endif |
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138 |
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139 if (! (isreal (xa) && isscalar (xa) && isreal (xb) && isscalar (xb))) |
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140 print_usage (); |
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141 endif |
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142 |
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143 ## Check for single or double limits to set appropriate default tolerance. |
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144 issingle = (isa ([xa, xb], "single") |
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145 || (! is_function_handle (ya) && isa (ya, "single")) |
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146 || (! is_function_handle (yb) && isa (yb, "single")) |
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147 || (! is_function_handle (za) && isa (za, "single")) |
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148 || (! is_function_handle (zb) && isa (zb, "single"))); |
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149 |
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150 ## Communicate to downstream quadrature routines that at least one limit of |
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151 ## integration was of single type by casting xa, xb to single. |
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152 if (issingle) |
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153 xa = single (xa); |
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154 xb = single (xb); |
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155 endif |
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156 |
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157 ## Set default tolerances, and then update with any specified parameters. |
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158 if (issingle) |
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159 abstol = 1e-5; |
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160 reltol = 1e-4; |
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161 else |
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162 abstol = 1e-10; |
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163 reltol = 1e-6; |
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164 endif |
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165 |
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166 method = "auto"; |
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167 vectorized = true; |
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168 idx = 1; |
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169 while (idx < nargin - 7) |
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170 prop = varargin{idx++}; |
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171 if (! ischar (prop)) |
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172 error ("integral3: property PROP must be a string"); |
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173 endif |
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174 |
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175 switch (tolower (prop)) |
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176 case "abstol" |
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177 abstol = varargin{idx++}; |
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178 if (! (isnumeric (abstol) && isscalar (abstol) && abstol >= 0)) |
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179 error ("integral3: AbsTol value must be a numeric scalar >= 0"); |
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180 endif |
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181 |
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182 case "reltol" |
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183 reltol = varargin{idx++}; |
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184 if (! (isnumeric (reltol) && isscalar (reltol) && reltol >= 0)) |
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185 error ("integral3: RelTol value must be a numeric scalar >= 0"); |
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186 endif |
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187 |
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188 case "method" |
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189 method = tolower (varargin{idx++}); |
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190 if (! any (strcmp (method, {"auto", "iterated", "tiled"}))) |
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191 error ("integral3 : unrecognized method '%s'", method); |
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192 endif |
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193 |
24148
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|
194 case "vectorized" |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
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changeset
|
195 vectorized = varargin{idx++}; |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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changeset
|
196 if (! (isscalar (vectorized) && isreal (vectorized))) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
197 error ('integral3: Vectorized must be a logical value'); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
198 endif |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
199 |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
200 otherwise |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
201 error ("integral3: unknown property '%s'", prop); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
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changeset
|
202 |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
203 endswitch |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
204 endwhile |
24102
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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diff
changeset
|
205 |
24148
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
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changeset
|
206 if (strcmp (method, "auto")) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
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changeset
|
207 if (isinf (xa) || isinf (xb) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
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changeset
|
208 || (! is_function_handle (ya) && isinf (ya)) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
diff
changeset
|
209 || (! is_function_handle (yb) && isinf (yb)) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
210 || (! is_function_handle (za) && isinf (za)) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
211 || (! is_function_handle (zb) && isinf (zb))) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
212 method = "iterated"; |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
diff
changeset
|
213 else |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
214 method = "tiled"; |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
diff
changeset
|
215 endif |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
diff
changeset
|
216 endif |
24102
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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diff
changeset
|
217 |
24148
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
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changeset
|
218 ## check upper and lower bounds of y |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
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changeset
|
219 if (! is_function_handle (ya)) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
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changeset
|
220 if (! (isreal (ya) && isscalar (ya))) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
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changeset
|
221 error ("integral3: YA must be a real scalar or a function"); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
diff
changeset
|
222 endif |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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changeset
|
223 ya = @(x) ya * ones (size (x)); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
224 endif |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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changeset
|
225 if (! is_function_handle (yb)) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
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changeset
|
226 if (! (isreal (yb) && isscalar (yb))) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
diff
changeset
|
227 error ("integral3: YB must be a real scalar or a function"); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
228 endif |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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|
229 yb = @(x) yb * ones (size (x)); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
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24102
diff
changeset
|
230 endif |
24102
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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diff
changeset
|
231 |
24148
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
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changeset
|
232 ## check upper and lower bounds of z |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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changeset
|
233 if (! is_function_handle (za)) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
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changeset
|
234 if (! (isreal (za) && isscalar (za))) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
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changeset
|
235 error ("integral3: ZA must be a real scalar or a function"); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
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changeset
|
236 endif |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
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|
237 za = @(x, y) za * ones (size(y)); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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24102
diff
changeset
|
238 endif |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
239 if (! is_function_handle (zb)) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
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changeset
|
240 if (! (isreal (zb) && isscalar (zb))) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
241 error ("integral3: ZB must be a real scalar or a function") |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
242 endif |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
243 zb = @(x, y) zb * ones (size (y)); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
244 endif |
24102
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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diff
changeset
|
245 |
24148
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
246 finner = @(x) inner (x, f, ya, yb, za, zb, vectorized, method, abstol, reltol); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
247 q = quadcc (finner, xa, xb, [abstol, reltol]); |
24102
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
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parents:
diff
changeset
|
248 |
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
diff
changeset
|
249 endfunction |
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
diff
changeset
|
250 |
24148
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
251 function q = inner (x, f, ya, yb, za, zb, vectorized, method, abstol, reltol) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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diff
changeset
|
252 q = zeros (size (x)); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
253 for i = 1 : length (x) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
254 za2 = @(y) za(x(i), y); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
255 zb2 = @(y) zb(x(i), y); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
256 f2 = @(y, z) f(x(i), y, z); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
257 if (! vectorized) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
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changeset
|
258 f2 = @(y, z) arrayfun (f2, y, z); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
259 endif |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
260 if (strcmp (method, "iterated")) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
261 finner_iter = @(y) inner_iterated (y, f2, za2, zb2, abstol, reltol); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
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changeset
|
262 q(i) = quadcc (finner_iter, ya(x(i)), yb(x(i)), [abstol, reltol]); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
263 else |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
264 q(i) = quad2d (f2, ya(x(i)), yb(x(i)), za2, zb2, |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
265 "AbsTol", abstol, "RelTol", reltol); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
266 endif |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
267 endfor |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
268 endfunction |
24102
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
diff
changeset
|
269 |
24148
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
270 function q = inner_iterated (y, f2, za2, zb2, abstol, reltol) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
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changeset
|
271 q = zeros (size (y)); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
272 for i = 1 : length (y) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
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changeset
|
273 q(i) = quadcc (@(z) f2(y(i), z), za2(y(i)), zb2(y(i)), [abstol, reltol]); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
274 endfor |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
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changeset
|
275 endfunction |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
276 |
24102
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
diff
changeset
|
277 |
24148
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
278 ## method tests |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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changeset
|
279 %!shared f |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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|
280 %! f = @(x, y, z) x .* y .* z; |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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changeset
|
281 |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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|
282 %!assert (integral3 (f, 0, 1, 0, 1, 0, 1), 0.125, 1e-10); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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|
283 %!assert (integral3 (f, 0, 1, 0, 1, 0, 1, "method", "tiled"), 0.125, 1e-10); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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changeset
|
284 %!assert (integral3 (f, 0, 1, 0, 1, 0, 1, "method", "iterated"), 0.125, 1e-10); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
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changeset
|
285 %!assert (integral3 (f, 0, 1, 0, 1, 0, 1, "method", "auto"), 0.125, 1e-10); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
286 |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
287 ## vectorized = false test |
24102
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
diff
changeset
|
288 %!test |
24148
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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289 %! f = @(x, y, z) x * y * z; |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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|
290 %! assert (integral3 (f, 0, 1, 0, 1, 0, 1, "vectorized", false), 0.125, 1e-10); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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changeset
|
291 |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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diff
changeset
|
292 ## tolerance tests |
24149
1a3229a2f1ab
integral2.m, integral3.m: Clean up BIST tests.
Rik <rik@octave.org>
parents:
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293 %!test |
24148
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
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parents:
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changeset
|
294 %! f = @(x, y, z) 2 * x.^2 + 3 * y.^2 + 4 * z.^2; |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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changeset
|
295 %!assert (integral3 (f, 0, 5, -5, 0, 0, 5, "AbsTol", 1e-9), 9375, 1e-9) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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changeset
|
296 %!assert (integral3 (f, 0, 5, -5, 0, 0, 5, "RelTol", 1e-5), 9375, -1e-5) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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changeset
|
297 %!assert (integral3 (f, 0, 5, -5, 0, 0, 5, "RelTol", 1e-6, "AbsTol", 1e-9), |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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diff
changeset
|
298 %! 9375, 1e-9) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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diff
changeset
|
299 |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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changeset
|
300 ## non-rectangular region |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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changeset
|
301 ## This test is too slow with "iterated" method |
24149
1a3229a2f1ab
integral2.m, integral3.m: Clean up BIST tests.
Rik <rik@octave.org>
parents:
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diff
changeset
|
302 %!test |
1a3229a2f1ab
integral2.m, integral3.m: Clean up BIST tests.
Rik <rik@octave.org>
parents:
24148
diff
changeset
|
303 %! f = @(x,y,z) 1 ./ (x + y + z); |
1a3229a2f1ab
integral2.m, integral3.m: Clean up BIST tests.
Rik <rik@octave.org>
parents:
24148
diff
changeset
|
304 %! ymax = @(x) 1 - x; |
1a3229a2f1ab
integral2.m, integral3.m: Clean up BIST tests.
Rik <rik@octave.org>
parents:
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diff
changeset
|
305 %! zmax = @(x, y) 1 - x - y; |
1a3229a2f1ab
integral2.m, integral3.m: Clean up BIST tests.
Rik <rik@octave.org>
parents:
24148
diff
changeset
|
306 %! assert (integral3 (f, 0, 1, 0, ymax, 0, zmax, "method", "tiled"), 0.25, 1e-6); |
24102
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
diff
changeset
|
307 |
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
diff
changeset
|
308 ## Test input validation |
24148
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
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diff
changeset
|
309 %!error integral3 |
24102
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
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diff
changeset
|
310 %!error integral3 (@plus) |
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
diff
changeset
|
311 %!error integral3 (@plus, 1) |
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
diff
changeset
|
312 %!error integral3 (@plus, 1, 2) |
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
diff
changeset
|
313 %!error integral3 (@plus, 1, 2, 3) |
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
diff
changeset
|
314 %!error integral3 (@plus, 1, 2, 3, 4) |
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
diff
changeset
|
315 %!error integral3 (@plus, 1, 2, 3, 4, 5) |
c723faa56ab4
Add missing functions integral2.m and integral3.m (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
diff
changeset
|
316 %!error integral3 (@plus, 1, 2, 3, 4, 5, 6, "foo") |
24148
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
317 %!error integral3 (0, 1, 2, 3, 4, 5, 6) # f must be a function handle |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
318 %!error integral3 (@plus, 1i, 2, 3, 4, 5, 6) # real limits |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
319 %!error integral3 (@plus, 1, 2i, 3, 4, 5, 6) # real limits |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
320 %!error integral3 (@plus, [1 1], 2, 3, 4, 5, 6) # scalar limits |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
321 %!error integral3 (@plus, 1, [2 2], 3, 4, 5, 6) # scalar limits |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
322 %!error <property PROP must be a string> |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
323 %! integral3 (@plus, 1, 2, 3, 4, 5, 6, 99, "bar"); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
324 %!error <AbsTol value must be a numeric> |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
325 %! integral3 (@plus, 1, 2, 3, 4, 5, 6, "AbsTol", "foo"); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
326 %!error <AbsTol value must be a .* scalar> |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
327 %! integral3 (@plus, 1, 2, 3, 4, 5, 6, "AbsTol", [1, 2]); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
328 %!error <AbsTol value must be.* .= 0> |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
329 %! integral3 (@plus, 1, 2, 3, 4, 5, 6, "AbsTol", -1); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
330 %!error <RelTol value must be a numeric> |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
331 %! integral3 (@plus, 1, 2, 3, 4, 5, 6, "RelTol", "foo"); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
332 %!error <RelTol value must be a .* scalar> |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
333 %! integral3 (@plus, 1, 2, 3, 4, 5, 6, "RelTol", [1, 2]); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
334 %!error <RelTol value must be.* .= 0> |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
335 %! integral3 (@plus, 1, 2, 3, 4, 5, 6, "RelTol", -1); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
336 %!error <unrecognized method 'foo'> |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
337 %! integral3 (@plus,1,2,3,4,5,6, "method", "foo"); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
338 %!error <Vectorized must be a logical value> |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
339 %! integral3 (@plus,1,2,3,4,5,6, "Vectorized", [0 1]); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
340 %!error <Vectorized must be a logical value> |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
341 %! integral3 (@plus,1,2,3,4,5,6, "Vectorized", {true}); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
342 %!error <unknown property 'foo'> |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
343 %! integral3 (@plus, 1, 2, 3, 4, 6, 6, "foo", "bar"); |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
344 %!error <YA must be a real scalar> integral3 (@plus, 1, 2, 3i, 4, 5, 6) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
345 %!error <YA must be a real scalar> integral3 (@plus, 1, 2, [3 3], 4, 5, 6) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
346 %!error <YB must be a real scalar> integral3 (@plus, 1, 2, 3, 4i, 5, 6) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
347 %!error <YB must be a real scalar> integral3 (@plus, 1, 2, 3, [4 4], 5, 6) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
348 %!error <ZA must be a real scalar> integral3 (@plus, 1, 2, 3, 4, 5i, 6) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
349 %!error <ZA must be a real scalar> integral3 (@plus, 1, 2, 3, 4, [5 5], 6) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
350 %!error <ZB must be a real scalar> integral3 (@plus, 1, 2, 3, 4, 5, 6i) |
2e64bed0bb3a
Updated integral2.m and integral3.m and added quad2d (bug #52074).
Nicholas R. Jankowski <jankowskin@asme.org>
parents:
24102
diff
changeset
|
351 %!error <ZB must be a real scalar> integral3 (@plus, 1, 2, 3, 4, 5, [6 6]) |