Mercurial > octave
annotate src/mappers.cc @ 10414:2a8b1db1e2ca
implement built-in cbrt
author | Jaroslav Hajek <highegg@gmail.com> |
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date | Tue, 16 Mar 2010 15:16:32 +0100 |
parents | 59e34bcdff13 |
children | 4d1fc073fbb7 |
rev | line source |
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1 | 1 /* |
2 | |
7017 | 3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
8920 | 4 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 John W. Eaton |
1 | 5 |
6 This file is part of Octave. | |
7 | |
8 Octave is free software; you can redistribute it and/or modify it | |
9 under the terms of the GNU General Public License as published by the | |
7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
11 option) any later version. | |
1 | 12 |
13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 for more details. | |
17 | |
18 You should have received a copy of the GNU General Public License | |
7016 | 19 along with Octave; see the file COPYING. If not, see |
20 <http://www.gnu.org/licenses/>. | |
1 | 21 |
22 */ | |
23 | |
240 | 24 #ifdef HAVE_CONFIG_H |
1192 | 25 #include <config.h> |
1 | 26 #endif |
27 | |
2089 | 28 #include <cctype> |
3010 | 29 #include <cfloat> |
1 | 30 |
4524 | 31 #include "lo-ieee.h" |
3156 | 32 #include "lo-specfun.h" |
2889 | 33 #include "lo-mappers.h" |
34 | |
1352 | 35 #include "defun.h" |
36 #include "error.h" | |
2955 | 37 #include "variables.h" |
1 | 38 |
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39 DEFUN (abs, args, , |
3321 | 40 "-*- texinfo -*-\n\ |
41 @deftypefn {Mapping Function} {} abs (@var{z})\n\ | |
42 Compute the magnitude of @var{z}, defined as\n\ | |
43 @tex\n\ | |
44 $|z| = \\sqrt{x^2 + y^2}$.\n\ | |
45 @end tex\n\ | |
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46 @ifnottex\n\ |
3321 | 47 |@var{z}| = @code{sqrt (x^2 + y^2)}.\n\ |
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48 @end ifnottex\n\ |
3321 | 49 \n\ |
50 For example,\n\ | |
51 \n\ | |
52 @example\n\ | |
53 @group\n\ | |
54 abs (3 + 4i)\n\ | |
55 @result{} 5\n\ | |
56 @end group\n\ | |
57 @end example\n\ | |
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58 @end deftypefn") |
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59 { |
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60 octave_value retval; |
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61 if (args.length () == 1) |
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62 retval = args(0).abs (); |
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63 else |
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64 print_usage (); |
529 | 65 |
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66 return retval; |
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67 } |
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68 |
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69 /* |
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70 |
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71 %!assert(abs (1), 1); |
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72 %!assert(abs (-3.5), 3.5); |
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73 %!assert(abs (3+4i), 5); |
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74 %!assert(abs (3-4i), 5); |
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75 %!assert(abs ([1.1, 3i; 3+4i, -3-4i]), [1.1, 3; 5, 5]); |
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76 |
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77 %!assert(abs (single(1)), single(1)); |
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78 %!assert(abs (single(-3.5)), single(3.5)); |
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79 %!assert(abs (single(3+4i)), single(5)); |
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80 %!assert(abs (single(3-4i)), single(5)); |
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81 %!assert(abs (single([1.1, 3i; 3+4i, -3-4i])), single([1.1, 3; 5, 5])); |
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82 |
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83 %!error abs (); |
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84 %!error abs (1, 2); |
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85 |
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86 */ |
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87 |
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88 DEFUN (acos, args, , |
3321 | 89 "-*- texinfo -*-\n\ |
3428 | 90 @deftypefn {Mapping Function} {} acos (@var{x})\n\ |
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91 Compute the inverse cosine in radians for each element of @var{x}.\n\ |
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92 @seealso{cos, acosd}\n\ |
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93 @end deftypefn") |
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94 { |
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95 octave_value retval; |
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96 if (args.length () == 1) |
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97 retval = args(0).acos (); |
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98 else |
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99 print_usage (); |
529 | 100 |
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101 return retval; |
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102 } |
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103 |
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104 /* |
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105 |
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106 %!test |
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107 %! rt2 = sqrt (2); |
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108 %! rt3 = sqrt (3); |
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109 %! v = [0, pi/6, pi/4, pi/3, pi/2, 2*pi/3, 3*pi/4, 5*pi/6, pi]; |
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110 %! x = [1, rt3/2, rt2/2, 1/2, 0, -1/2, -rt2/2, -rt3/2, -1]; |
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111 %! assert(acos (x), v, sqrt(eps)); |
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112 |
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113 %!test |
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114 %! rt2 = sqrt (2); |
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115 %! rt3 = sqrt (3); |
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116 %! v = single ([0, pi/6, pi/4, pi/3, pi/2, 2*pi/3, 3*pi/4, 5*pi/6, pi]); |
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117 %! x = single ([1, rt3/2, rt2/2, 1/2, 0, -1/2, -rt2/2, -rt3/2, -1]); |
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118 %! assert(acos (x), v, sqrt(eps('single'))); |
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119 |
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120 %!error acos (); |
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121 %!error acos (1, 2); |
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122 |
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123 */ |
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124 |
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125 DEFUN (acosh, args, , |
3321 | 126 "-*- texinfo -*-\n\ |
3428 | 127 @deftypefn {Mapping Function} {} acosh (@var{x})\n\ |
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128 Compute the inverse hyperbolic cosine for each element of @var{x}.\n\ |
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129 @seealso{cosh}\n\ |
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130 @end deftypefn") |
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131 { |
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132 octave_value retval; |
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133 if (args.length () == 1) |
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134 retval = args(0).acosh (); |
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135 else |
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136 print_usage (); |
529 | 137 |
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138 return retval; |
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139 } |
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140 |
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141 /* |
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142 |
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143 %!test |
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144 %! v = [0, pi/2*i, pi*i, pi/2*i]; |
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145 %! x = [1, 0, -1, 0]; |
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146 %! assert(acosh (x), v, sqrt(eps)); |
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147 |
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148 %!test |
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149 %! v = single([0, pi/2*i, pi*i, pi/2*i]); |
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150 %! x = single([1, 0, -1, 0]); |
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151 %! assert(acosh (x), v, sqrt (eps('single'))); |
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152 |
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153 %!error acosh (); |
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154 %!error acosh (1, 2); |
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155 |
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156 */ |
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157 |
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158 DEFUN (angle, args, , |
3458 | 159 "-*- texinfo -*-\n\ |
160 @deftypefn {Mapping Function} {} angle (@var{z})\n\ | |
161 See arg.\n\ | |
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162 @end deftypefn") |
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163 { |
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164 octave_value retval; |
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165 if (args.length () == 1) |
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166 retval = args(0).arg (); |
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167 else |
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168 print_usage (); |
529 | 169 |
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170 return retval; |
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171 } |
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172 |
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173 DEFUN (arg, args, , |
3321 | 174 "-*- texinfo -*-\n\ |
3446 | 175 @deftypefn {Mapping Function} {} arg (@var{z})\n\ |
3458 | 176 @deftypefnx {Mapping Function} {} angle (@var{z})\n\ |
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177 Compute the argument of @var{z}, defined as,\n\ |
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178 @tex\n\ |
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179 $\\theta = atan2 (y, x),$\n\ |
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180 @end tex\n\ |
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181 @ifnottex\n\ |
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182 @var{theta} = @code{atan2 (@var{y}, @var{x})},\n\ |
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183 @end ifnottex\n\ |
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184 in radians.\n\ |
3321 | 185 \n\ |
186 For example,\n\ | |
187 \n\ | |
188 @example\n\ | |
189 @group\n\ | |
190 arg (3 + 4i)\n\ | |
191 @result{} 0.92730\n\ | |
192 @end group\n\ | |
193 @end example\n\ | |
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194 @end deftypefn") |
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195 { |
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196 octave_value retval; |
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197 if (args.length () == 1) |
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198 retval = args(0).arg (); |
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199 else |
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200 print_usage (); |
529 | 201 |
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202 return retval; |
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203 } |
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204 |
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205 /* |
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206 |
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207 %!assert(arg (1), 0); |
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208 %!assert(arg (i), pi/2); |
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209 %!assert(arg (-1), pi); |
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210 %!assert(arg (-i), -pi/2); |
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211 %!assert(arg ([1, i; -1, -i]), [0, pi/2; pi, -pi/2]); |
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212 |
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213 %!assert(arg (single(1)), single(0)); |
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214 %!assert(arg (single(i)), single(pi/2)); |
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215 %!assert(arg (single(-1)), single(pi)); |
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216 %!assert(arg (single(-i)), single(-pi/2)); |
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217 %!assert(arg (single([1, i; -1, -i])), single([0, pi/2; pi, -pi/2]), 2e1*eps('single')); |
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218 |
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219 %!error arg (); |
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220 %!error arg (1, 2); |
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221 |
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222 */ |
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223 |
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224 DEFUN (asin, args, , |
3321 | 225 "-*- texinfo -*-\n\ |
3428 | 226 @deftypefn {Mapping Function} {} asin (@var{x})\n\ |
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227 Compute the inverse sine in radians for each element of @var{x}.\n\ |
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228 @seealso{sin, asind}\n\ |
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229 @end deftypefn") |
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230 { |
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231 octave_value retval; |
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232 if (args.length () == 1) |
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233 retval = args(0).asin (); |
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234 else |
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235 print_usage (); |
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236 |
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237 return retval; |
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238 } |
529 | 239 |
7385 | 240 /* |
241 %!test | |
242 %! rt2 = sqrt (2); | |
243 %! rt3 = sqrt (3); | |
244 %! v = [0, pi/6, pi/4, pi/3, pi/2, pi/3, pi/4, pi/6, 0]; | |
245 %! x = [0, 1/2, rt2/2, rt3/2, 1, rt3/2, rt2/2, 1/2, 0]; | |
246 %! assert(all (abs (asin (x) - v) < sqrt (eps))); | |
247 %!error asin (); | |
248 %!error asin (1, 2); | |
249 */ | |
250 | |
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251 DEFUN (asinh, args, , |
3321 | 252 "-*- texinfo -*-\n\ |
3428 | 253 @deftypefn {Mapping Function} {} asinh (@var{x})\n\ |
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254 Compute the inverse hyperbolic sine for each element of @var{x}.\n\ |
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255 @seealso{sinh}\n\ |
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256 @end deftypefn") |
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257 { |
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258 octave_value retval; |
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259 if (args.length () == 1) |
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260 retval = args(0).asinh (); |
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261 else |
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262 print_usage (); |
529 | 263 |
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264 return retval; |
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265 } |
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266 |
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267 /* |
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268 |
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269 %!test |
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270 %! v = [0, pi/2*i, 0, -pi/2*i]; |
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271 %! x = [0, i, 0, -i]; |
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272 %! assert(asinh (x), v, sqrt (eps)); |
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273 |
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274 %!test |
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275 %! v = single([0, pi/2*i, 0, -pi/2*i]); |
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276 %! x = single([0, i, 0, -i]); |
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277 %! assert(asinh (x), v, sqrt (eps('single'))); |
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278 |
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279 %!error asinh (); |
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280 %!error asinh (1, 2); |
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281 |
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282 */ |
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283 |
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284 DEFUN (atan, args, , |
3321 | 285 "-*- texinfo -*-\n\ |
3428 | 286 @deftypefn {Mapping Function} {} atan (@var{x})\n\ |
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287 Compute the inverse tangent in radians for each element of @var{x}.\n\ |
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288 @seealso{tan, atand}\n\ |
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289 @end deftypefn") |
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290 { |
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291 octave_value retval; |
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292 if (args.length () == 1) |
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293 retval = args(0).atan (); |
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294 else |
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295 print_usage (); |
529 | 296 |
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297 return retval; |
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298 } |
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299 |
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300 /* |
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301 |
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302 %!test |
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303 %! rt2 = sqrt (2); |
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304 %! rt3 = sqrt (3); |
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305 %! v = [0, pi/6, pi/4, pi/3, -pi/3, -pi/4, -pi/6, 0]; |
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306 %! x = [0, rt3/3, 1, rt3, -rt3, -1, -rt3/3, 0]; |
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307 %! assert(atan (x), v, sqrt (eps)); |
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308 |
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309 %!test |
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310 %! rt2 = sqrt (2); |
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311 %! rt3 = sqrt (3); |
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312 %! v = single([0, pi/6, pi/4, pi/3, -pi/3, -pi/4, -pi/6, 0]); |
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313 %! x = single([0, rt3/3, 1, rt3, -rt3, -1, -rt3/3, 0]); |
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314 %! assert(atan (x), v, sqrt (eps('single'))); |
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315 |
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316 %!error atan (); |
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317 %!error atan (1, 2); |
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318 |
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319 */ |
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320 |
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321 DEFUN (atanh, args, , |
3321 | 322 "-*- texinfo -*-\n\ |
3428 | 323 @deftypefn {Mapping Function} {} atanh (@var{x})\n\ |
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324 Compute the inverse hyperbolic tangent for each element of @var{x}.\n\ |
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325 @seealso{tanh}\n\ |
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326 @end deftypefn") |
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327 { |
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328 octave_value retval; |
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329 if (args.length () == 1) |
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330 retval = args(0).atanh (); |
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331 else |
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332 print_usage (); |
529 | 333 |
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334 return retval; |
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335 } |
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336 |
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337 /* |
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338 |
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339 %!test |
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340 %! v = [0, 0]; |
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341 %! x = [0, 0]; |
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342 %! assert(atanh (x), v, sqrt (eps)); |
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343 |
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344 %!test |
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345 %! v = single([0, 0]); |
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346 %! x = single([0, 0]); |
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347 %! assert(atanh (x), v, sqrt (eps('single'))); |
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348 |
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349 %!error atanh (); |
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350 %!error atanh (1, 2); |
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351 |
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352 */ |
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353 |
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354 DEFUN (cbrt, args, , |
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355 "-*- texinfo -*-\n\ |
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356 @deftypefn {Mapping Function} {} cbrt (@var{x})\n\ |
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357 Return the real cube root of @var{x}. Unlike @code{@var{x}^(1/3)},\n\ |
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358 the result will be negative if @var{x} is negative.\n\ |
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359 @end deftypefn") |
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360 { |
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361 octave_value retval; |
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362 if (args.length () == 1) |
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363 retval = args(0).cbrt (); |
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364 else |
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365 print_usage (); |
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366 |
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367 return retval; |
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368 } |
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369 |
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370 /* |
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371 |
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372 %!assert (cbrt (64), 4) |
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373 %!assert (cbrt (-125), -5) |
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374 %!assert (cbrt (0), 0) |
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375 %!assert (cbrt (Inf), Inf) |
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376 %!assert (cbrt (-Inf), -Inf) |
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377 %!assert (cbrt (NaN), NaN) |
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378 %!assert (cbrt (2^300), 2^100) |
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379 %!assert (cbrt (125*2^300), 5*2^100) |
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380 |
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381 */ |
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382 |
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383 DEFUN (ceil, args, , |
3321 | 384 "-*- texinfo -*-\n\ |
3373 | 385 @deftypefn {Mapping Function} {} ceil (@var{x})\n\ |
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386 Return the smallest integer not less than @var{x}. This is equivalent to\n\ |
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387 rounding towards positive infinity. If @var{x} is\n\ |
3321 | 388 complex, return @code{ceil (real (@var{x})) + ceil (imag (@var{x})) * I}.\n\ |
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389 @example\n\ |
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390 @group\n\ |
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391 ceil ([-2.7, 2.7])\n\ |
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392 @result{} -2 3\n\ |
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393 @end group\n\ |
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394 @end example\n\ |
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395 @seealso{floor, round, fix}\n\ |
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396 @end deftypefn") |
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397 { |
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398 octave_value retval; |
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399 if (args.length () == 1) |
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400 retval = args(0).ceil (); |
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401 else |
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402 print_usage (); |
529 | 403 |
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404 return retval; |
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405 } |
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406 |
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407 /* |
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408 |
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409 %% double precision |
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410 %!assert(ceil ([2, 1.1, -1.1, -1]), [2, 2, -1, -1]); |
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411 |
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412 %% compelx double precison |
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413 %!assert(ceil ([2+2i, 1.1+1.1i, -1.1-1.1i, -1-i]), [2+2i, 2+2i, -1-i, -1-i]); |
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414 |
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415 %% single precision |
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416 %!assert(ceil (single([2, 1.1, -1.1, -1])), single([2, 2, -1, -1])); |
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417 |
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418 %% compelx single preci |
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419 %!assert(ceil (single ([2+2i, 1.1+1.1i, -1.1-1.1i, -1-i])), single([2+2i, 2+2i, -1-i, -1-i])); |
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420 |
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421 %!error ceil (); |
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422 %!error ceil (1, 2); |
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423 |
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424 */ |
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425 |
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426 DEFUN (conj, args, , |
3381 | 427 "-*- texinfo -*-\n\ |
3321 | 428 @deftypefn {Mapping Function} {} conj (@var{z})\n\ |
429 Return the complex conjugate of @var{z}, defined as\n\ | |
430 @tex\n\ | |
431 $\\bar{z} = x - iy$.\n\ | |
432 @end tex\n\ | |
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433 @ifnottex\n\ |
3321 | 434 @code{conj (@var{z})} = @var{x} - @var{i}@var{y}.\n\ |
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435 @end ifnottex\n\ |
5642 | 436 @seealso{real, imag}\n\ |
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437 @end deftypefn") |
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438 { |
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439 octave_value retval; |
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440 if (args.length () == 1) |
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441 retval = args(0).conj (); |
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442 else |
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443 print_usage (); |
529 | 444 |
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445 return retval; |
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446 } |
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447 |
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448 /* |
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449 |
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450 %!assert(conj (1), 1); |
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451 %!assert(conj (i), -i) |
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452 %!assert(conj (1+i), 1-i) |
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453 %!assert(conj (1-i), 1+i) |
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454 %!assert(conj ([-1, -i; -1+i, -1-i]), [-1, i; -1-i, -1+i]); |
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455 |
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456 %!assert(conj (single(1)), single(1)); |
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457 %!assert(conj (single(i)), single(-i)) |
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458 %!assert(conj (single(1+i)), single(1-i)) |
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459 %!assert(conj (single(1-i)), single(1+i)) |
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460 %!assert(conj (single([-1, -i; -1+i, -1-i])), single([-1, i; -1-i, -1+i])); |
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461 |
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462 %!error conj (); |
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463 %!error conj (1, 2); |
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464 |
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465 */ |
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466 |
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467 DEFUN (cos, args, , |
3321 | 468 "-*- texinfo -*-\n\ |
3428 | 469 @deftypefn {Mapping Function} {} cos (@var{x})\n\ |
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470 Compute the cosine for each element of @var{x} in radians.\n\ |
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471 @seealso{acos, cosd, cosh}\n\ |
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472 @end deftypefn") |
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473 { |
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474 octave_value retval; |
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475 if (args.length () == 1) |
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476 retval = args(0).cos (); |
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477 else |
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478 print_usage (); |
529 | 479 |
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480 return retval; |
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481 } |
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482 |
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483 /* |
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484 |
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485 %!test |
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486 %! rt2 = sqrt (2); |
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487 %! rt3 = sqrt (3); |
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488 %! x = [0, pi/6, pi/4, pi/3, pi/2, 2*pi/3, 3*pi/4, 5*pi/6, pi]; |
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489 %! v = [1, rt3/2, rt2/2, 1/2, 0, -1/2, -rt2/2, -rt3/2, -1]; |
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490 %! assert(cos (x), v, sqrt (eps)); |
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491 |
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492 %!test |
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493 %! rt2 = sqrt (2); |
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494 %! rt3 = sqrt (3); |
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495 %! x = single([0, pi/6, pi/4, pi/3, pi/2, 2*pi/3, 3*pi/4, 5*pi/6, pi]); |
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496 %! v = single([1, rt3/2, rt2/2, 1/2, 0, -1/2, -rt2/2, -rt3/2, -1]); |
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497 %! assert(cos (x), v, sqrt (eps('single'))); |
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498 |
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499 %!error cos (); |
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500 %!error cos (1, 2); |
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501 |
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502 */ |
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503 |
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504 DEFUN (cosh, args, , |
3321 | 505 "-*- texinfo -*-\n\ |
3428 | 506 @deftypefn {Mapping Function} {} cosh (@var{x})\n\ |
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507 Compute the hyperbolic cosine for each element of @var{x}.\n\ |
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508 @seealso{acosh, sinh, tanh}\n\ |
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509 @end deftypefn") |
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510 { |
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511 octave_value retval; |
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512 if (args.length () == 1) |
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513 retval = args(0).cosh (); |
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514 else |
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515 print_usage (); |
529 | 516 |
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517 return retval; |
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518 } |
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519 |
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520 /* |
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521 |
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522 %!test |
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523 %! x = [0, pi/2*i, pi*i, 3*pi/2*i]; |
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524 %! v = [1, 0, -1, 0]; |
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525 %! assert(cosh (x), v, sqrt (eps)); |
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526 |
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527 %!test |
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528 %! x = single([0, pi/2*i, pi*i, 3*pi/2*i]); |
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529 %! v = single([1, 0, -1, 0]); |
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530 %! assert(cosh (x), v, sqrt (eps ('single'))); |
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531 |
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532 %!error cosh (); |
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533 %!error cosh (1, 2); |
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534 |
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535 */ |
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536 |
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537 DEFUN (erf, args, , |
3321 | 538 "-*- texinfo -*-\n\ |
539 @deftypefn {Mapping Function} {} erf (@var{z})\n\ | |
540 Computes the error function,\n\ | |
541 @tex\n\ | |
542 $$\n\ | |
543 {\\rm erf} (z) = {2 \\over \\sqrt{\\pi}}\\int_0^z e^{-t^2} dt\n\ | |
544 $$\n\ | |
545 @end tex\n\ | |
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546 @ifnottex\n\ |
3321 | 547 \n\ |
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548 @example\n\ |
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549 @group\n\ |
3321 | 550 z\n\ |
551 /\n\ | |
552 erf (z) = (2/sqrt (pi)) | e^(-t^2) dt\n\ | |
553 /\n\ | |
554 t=0\n\ | |
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555 @end group\n\ |
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556 @end example\n\ |
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557 @end ifnottex\n\ |
5642 | 558 @seealso{erfc, erfinv}\n\ |
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559 @end deftypefn") |
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560 { |
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561 octave_value retval; |
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562 if (args.length () == 1) |
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563 retval = args(0).erf (); |
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564 else |
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565 print_usage (); |
624 | 566 |
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567 return retval; |
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568 } |
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569 |
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570 /* |
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571 |
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572 %!test |
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573 %! a = -1i*sqrt(-1/(6.4187*6.4187)); |
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574 %! assert (erf(a), erf(real(a))); |
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575 |
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576 %!test |
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577 %! x=[0,.5,1]; |
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578 %! v=[0, .520499877813047, .842700792949715]; |
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579 %! assert(all(abs(erf(x)-v)<1.e-10) && all(abs(erf(-x)+v)<1.e-10) && all(abs(erfc(x)+v-1)<1.e-10) && all(abs(erfinv(v)-x)<1.e-10)); |
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580 |
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581 %!test |
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582 %! a = -1i*sqrt(single (-1/(6.4187*6.4187))); |
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583 %! assert (erf(a), erf(real(a))); |
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584 |
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585 %!test |
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586 %! x=single ([0,.5,1]); |
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587 %! v=single ([0, .520499877813047, .842700792949715]); |
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588 %! assert(all(abs(erf(x)-v)<1.e-6) && all(abs(erf(-x)+v)<1.e-6) && all(abs(erfc(x)+v-1)<1.e-6) && all(abs(erfinv(v)-x)<1.e-6)); |
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589 |
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590 %% test/octave.test/arith/erf-2.m |
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591 %!error erf(); |
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592 |
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593 %% test/octave.test/arith/erf-3.m |
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594 %!error erf(1,2); |
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595 |
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596 |
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597 |
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598 */ |
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599 |
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600 DEFUN (erfinv, args, , |
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601 "-*- texinfo -*-\n\ |
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602 @deftypefn {Mapping Function} {} erfinv (@var{x})\n\ |
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603 Computes the inverse error function, i.e. @var{y} such that\n\ |
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604 @example\n\ |
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605 erf(@var{y}) == @var{x}\n\ |
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606 @end example\n\ |
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607 @seealso{erfc, erf}\n\ |
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608 @end deftypefn") |
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609 { |
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610 octave_value retval; |
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611 if (args.length () == 1) |
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612 retval = args(0).erfinv (); |
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613 else |
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614 print_usage (); |
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615 |
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616 return retval; |
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617 } |
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618 |
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619 /* |
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620 %% middle region |
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621 %!assert (erf (erfinv ([-0.9 -0.3 0 0.4 0.8])), [-0.9 -0.3 0 0.4 0.8], eps) |
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622 %!assert (erf (erfinv (single ([-0.9 -0.3 0 0.4 0.8]))), single ([-0.9 -0.3 0 0.4 0.8]), 1e-8) |
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623 %% tail region |
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624 %!assert (erf (erfinv ([-0.999 -0.99 0.9999 0.99999])), [-0.999 -0.99 0.9999 0.99999], eps) |
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625 %!assert (erf (erfinv (single ([-0.999 -0.99 0.9999 0.99999]))), single ([-0.999 -0.99 0.9999 0.99999]), 1e-8) |
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626 %% backward - loss of accuracy |
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627 %!assert (erfinv (erf ([-3 -1 -0.4 0.7 1.3 2.8])), [-3 -1 -0.4 0.7 1.3 2.8], -1e-12) |
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628 %!assert (erfinv (erf (single ([-3 -1 -0.4 0.7 1.3 2.8]))), single ([-3 -1 -0.4 0.7 1.3 2.8]), -1e-4) |
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629 %% exceptional |
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630 %!assert (erfinv ([-1, 1, 1.1, -2.1]), [-Inf, Inf, NaN, NaN]) |
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631 %!error erfinv (1+2i) |
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632 */ |
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633 |
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634 DEFUN (erfc, args, , |
3321 | 635 "-*- texinfo -*-\n\ |
636 @deftypefn {Mapping Function} {} erfc (@var{z})\n\ | |
637 Computes the complementary error function,\n\ | |
638 @tex\n\ | |
639 $1 - {\\rm erf} (z)$.\n\ | |
640 @end tex\n\ | |
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641 @ifnottex\n\ |
3321 | 642 @code{1 - erf (@var{z})}.\n\ |
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643 @end ifnottex\n\ |
5642 | 644 @seealso{erf, erfinv}\n\ |
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645 @end deftypefn") |
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646 { |
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647 octave_value retval; |
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648 if (args.length () == 1) |
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649 retval = args(0).erfc (); |
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650 else |
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651 print_usage (); |
624 | 652 |
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653 return retval; |
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654 } |
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655 |
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656 /* |
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657 |
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658 %!test |
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659 %! a = -1i*sqrt(-1/(6.4187*6.4187)); |
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660 %! assert (erfc(a), erfc(real(a))); |
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661 |
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662 */ |
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663 |
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664 DEFUN (erfcx, args, , |
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665 "-*- texinfo -*-\n\ |
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666 @deftypefn {Mapping Function} {} erfcx (@var{z})\n\ |
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667 Computes the scaled complementary error function,\n\ |
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668 @tex\n\ |
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669 $z^2 (1 - {\\rm erf} (z))$.\n\ |
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670 @end tex\n\ |
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671 @ifnottex\n\ |
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672 @code{z^2*(1 - erf (@var{z}))}.\n\ |
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673 @end ifnottex\n\ |
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674 @seealso{erfc, erf, erfinv}\n\ |
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675 @end deftypefn") |
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676 { |
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677 octave_value retval; |
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678 if (args.length () == 1) |
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679 retval = args(0).erfcx (); |
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680 else |
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681 print_usage (); |
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682 |
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683 return retval; |
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684 } |
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685 |
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686 /* |
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687 |
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688 */ |
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689 |
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690 DEFUN (exp, args, , |
3321 | 691 "-*- texinfo -*-\n\ |
3373 | 692 @deftypefn {Mapping Function} {} exp (@var{x})\n\ |
9141
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693 Compute\n\ |
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694 @tex\n\ |
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695 $e^{x}$\n\ |
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696 @end tex\n\ |
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697 @ifnottex\n\ |
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698 @code{e^x}\n\ |
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699 @end ifnottex\n\ |
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700 for each element of @var{x}. To compute the matrix\n\ |
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701 exponential, see @ref{Linear Algebra}.\n\ |
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702 @seealso{log}\n\ |
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703 @end deftypefn") |
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704 { |
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705 octave_value retval; |
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706 if (args.length () == 1) |
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707 retval = args(0).exp (); |
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708 else |
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709 print_usage (); |
529 | 710 |
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711 return retval; |
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712 } |
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713 |
7815
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|
714 /* |
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|
715 |
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changeset
|
716 %!assert(exp ([0, 1, -1, -1000]), [1, e, 1/e, 0], sqrt (eps)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
717 %!assert(exp (1+i), e * (cos (1) + sin (1) * i), sqrt (eps)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
718 %!assert(exp (single([0, 1, -1, -1000])), single([1, e, 1/e, 0]), sqrt (eps('single'))); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
719 %!assert(exp (single(1+i)), single (e * (cos (1) + sin (1) * i)), sqrt (eps('single'))); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
720 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
721 %!error exp (); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
722 %!error exp (1, 2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
723 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
724 %!assert(exp (Inf) == Inf && exp (-Inf) == 0 && isnan (exp (NaN))); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
725 %!assert(exp (Inf ('single')) == Inf('single') && exp (-Inf('single')) == 0 && isnan (exp (NaN('single')))); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
726 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
727 */ |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
728 |
7638
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents:
7636
diff
changeset
|
729 DEFUN (expm1, args, , |
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents:
7636
diff
changeset
|
730 "-*- texinfo -*-\n\ |
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents:
7636
diff
changeset
|
731 @deftypefn {Mapping Function} {} expm1 (@var{x})\n\ |
9167
1231b1762a9a
Simplify TeXinfo and eliminate use of @iftex in arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9165
diff
changeset
|
732 Compute\n\ |
9141
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
733 @tex\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
734 $ e^{x} - 1 $\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
735 @end tex\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
736 @ifnottex\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
737 @code{exp (@var{x}) - 1}\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
738 @end ifnottex\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
739 accurately in the neighborhood of zero.\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
740 @seealso{exp}\n\ |
7638
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents:
7636
diff
changeset
|
741 @end deftypefn") |
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents:
7636
diff
changeset
|
742 { |
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents:
7636
diff
changeset
|
743 octave_value retval; |
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents:
7636
diff
changeset
|
744 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
745 retval = args(0).expm1 (); |
7638
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents:
7636
diff
changeset
|
746 else |
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents:
7636
diff
changeset
|
747 print_usage (); |
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents:
7636
diff
changeset
|
748 |
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents:
7636
diff
changeset
|
749 return retval; |
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents:
7636
diff
changeset
|
750 } |
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents:
7636
diff
changeset
|
751 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
752 DEFUN (finite, args, , |
3369 | 753 "-*- texinfo -*-\n\ |
754 @deftypefn {Mapping Function} {} finite (@var{x})\n\ | |
3600 | 755 Return 1 for elements of @var{x} that are finite values and zero\n\ |
9041
853f96e8008f
Cleanup documentation file matrix.texi
Rik <rdrider0-list@yahoo.com>
parents:
8920
diff
changeset
|
756 otherwise. For example,\n\ |
3369 | 757 \n\ |
758 @example\n\ | |
759 @group\n\ | |
5016 | 760 finite ([13, Inf, NA, NaN])\n\ |
761 @result{} [ 1, 0, 0, 0 ]\n\ | |
3369 | 762 @end group\n\ |
763 @end example\n\ | |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
764 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
765 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
766 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
767 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
768 retval = args(0).finite (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
769 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
770 print_usage (); |
529 | 771 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
772 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
773 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
774 |
7814
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
775 /* |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
776 |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
777 %!assert(!(finite (Inf))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
778 %!assert(!(finite (NaN))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
779 %!assert(finite (rand(1,10))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
780 |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
781 %!assert(!(finite (single(Inf)))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
782 %!assert(!(finite (single(NaN)))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
783 %!assert(finite (single(rand(1,10)))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
784 |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
785 */ |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
786 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
787 DEFUN (fix, args, , |
3321 | 788 "-*- texinfo -*-\n\ |
3373 | 789 @deftypefn {Mapping Function} {} fix (@var{x})\n\ |
9165
8c71a86c4bf4
Update section 17.5 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9155
diff
changeset
|
790 Truncate fractional portion of @var{x} and return the integer portion. This\n\ |
9141
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
791 is equivalent to rounding towards zero. If @var{x} is complex, return\n\ |
3321 | 792 @code{fix (real (@var{x})) + fix (imag (@var{x})) * I}.\n\ |
9141
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
793 @example\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
794 @group\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
795 fix ([-2.7, 2.7])\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
796 @result{} -2 2\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
797 @end group\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
798 @end example\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
799 @seealso{ceil, floor, round}\n\ |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
800 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
801 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
802 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
803 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
804 retval = args(0).fix (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
805 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
806 print_usage (); |
529 | 807 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
808 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
809 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
810 |
7815
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
811 /* |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
812 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
813 %!assert(fix ([1.1, 1, -1.1, -1]), [1, 1, -1, -1]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
814 %!assert(fix ([1.1+1.1i, 1+i, -1.1-1.1i, -1-i]), [1+i, 1+i, -1-i, -1-i]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
815 %!assert(fix (single([1.1, 1, -1.1, -1])), single([1, 1, -1, -1])); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
816 %!assert(fix (single([1.1+1.1i, 1+i, -1.1-1.1i, -1-i])), single([1+i, 1+i, -1-i, -1-i])); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
817 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
818 %!error fix (); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
819 %!error fix (1, 2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
820 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
821 */ |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
822 |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
823 DEFUN (floor, args, , |
3321 | 824 "-*- texinfo -*-\n\ |
3373 | 825 @deftypefn {Mapping Function} {} floor (@var{x})\n\ |
9141
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
826 Return the largest integer not greater than @var{x}. This is equivalent to\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
827 rounding towards negative infinity. If @var{x} is\n\ |
3321 | 828 complex, return @code{floor (real (@var{x})) + floor (imag (@var{x})) * I}.\n\ |
9141
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
829 @example\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
830 @group\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
831 floor ([-2.7, 2.7])\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
832 @result{} -3 2\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
833 @end group\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
834 @end example\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
835 @seealso{ceil, round, fix}\n\ |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
836 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
837 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
838 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
839 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
840 retval = args(0).floor (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
841 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
842 print_usage (); |
529 | 843 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
844 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
845 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
846 |
7815
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
847 /* |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
848 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
849 %!assert(floor ([2, 1.1, -1.1, -1]), [2, 1, -2, -1]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
850 %!assert(floor ([2+2i, 1.1+1.1i, -1.1-1.1i, -1-i]), [2+2i, 1+i, -2-2i, -1-i]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
851 %!assert(floor (single ([2, 1.1, -1.1, -1])), single ([2, 1, -2, -1])); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
852 %!assert(floor (single([2+2i, 1.1+1.1i, -1.1-1.1i, -1-i])), single([2+2i, 1+i, -2-2i, -1-i])); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
853 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
854 %!error floor (); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
855 %!error floor (1, 2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
856 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
857 */ |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
858 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
859 DEFUN (gamma, args, , |
3321 | 860 "-*- texinfo -*-\n\ |
861 @deftypefn {Mapping Function} {} gamma (@var{z})\n\ | |
862 Computes the Gamma function,\n\ | |
863 @tex\n\ | |
864 $$\n\ | |
865 \\Gamma (z) = \\int_0^\\infty t^{z-1} e^{-t} dt.\n\ | |
866 $$\n\ | |
867 @end tex\n\ | |
8517
81d6ab3ac93c
Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents:
8459
diff
changeset
|
868 @ifnottex\n\ |
3321 | 869 \n\ |
870 @example\n\ | |
9064
7c02ec148a3c
Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents:
9041
diff
changeset
|
871 @group\n\ |
3321 | 872 infinity\n\ |
873 /\n\ | |
874 gamma (z) = | t^(z-1) exp (-t) dt.\n\ | |
875 /\n\ | |
876 t=0\n\ | |
9064
7c02ec148a3c
Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents:
9041
diff
changeset
|
877 @end group\n\ |
3321 | 878 @end example\n\ |
8517
81d6ab3ac93c
Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents:
8459
diff
changeset
|
879 @end ifnottex\n\ |
8286
6f2d95255911
fix @seealso references to point to existing anchors
Thorsten Meyer <thorsten.meyier@gmx.de>
parents:
8084
diff
changeset
|
880 @seealso{gammainc, lgamma}\n\ |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
881 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
882 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
883 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
884 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
885 retval = args(0).gamma (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
886 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
887 print_usage (); |
624 | 888 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
889 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
890 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
891 |
7667
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
892 /* |
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
893 |
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
894 %!test |
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
895 %! a = -1i*sqrt(-1/(6.4187*6.4187)); |
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
896 %! assert (gamma(a), gamma(real(a))); |
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
897 |
7815
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
898 %!test |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
899 %! x = [.5, 1, 1.5, 2, 3, 4, 5]; |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
900 %! v = [sqrt(pi), 1, .5*sqrt(pi), 1, 2, 6, 24]; |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
901 %! assert(gamma(x), v, sqrt(eps)) |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
902 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
903 %!test |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
904 %! a = single(-1i*sqrt(-1/(6.4187*6.4187))); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
905 %! assert (gamma(a), gamma(real(a))); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
906 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
907 %!test |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
908 %! x = single([.5, 1, 1.5, 2, 3, 4, 5]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
909 %! v = single([sqrt(pi), 1, .5*sqrt(pi), 1, 2, 6, 24]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
910 %! assert(gamma(x), v, sqrt(eps('single'))) |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
911 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
912 %!error gamma(); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
913 %!error gamma(1,2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
914 |
7667
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
915 */ |
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
916 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
917 DEFUN (imag, args, , |
3321 | 918 "-*- texinfo -*-\n\ |
919 @deftypefn {Mapping Function} {} imag (@var{z})\n\ | |
920 Return the imaginary part of @var{z} as a real number.\n\ | |
5642 | 921 @seealso{real, conj}\n\ |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
922 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
923 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
924 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
925 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
926 retval = args(0).imag (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
927 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
928 print_usage (); |
2089 | 929 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
930 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
931 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
932 |
7815
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
933 /* |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
934 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
935 %!assert(imag (1), 0); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
936 %!assert(imag (i), 1); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
937 %!assert(imag (1+i), 1); |
8459
d17874a6f161
improve indexing of diagonal & permutation matrices
Jaroslav Hajek <highegg@gmail.com>
parents:
8442
diff
changeset
|
938 %!assert(imag ([i, 1; 1, i]), full (eye (2))); |
7815
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
939 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
940 %!assert(imag (single(1)), single(0)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
941 %!assert(imag (single(i)), single(1)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
942 %!assert(imag (single(1+i)), single(1)); |
8459
d17874a6f161
improve indexing of diagonal & permutation matrices
Jaroslav Hajek <highegg@gmail.com>
parents:
8442
diff
changeset
|
943 %!assert(imag (single([i, 1; 1, i])), full (eye (2,'single'))); |
7815
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
944 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
945 %!error imag (); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
946 %!error imag (1, 2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
947 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
948 */ |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
949 |
7528
26d8a92644de
try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents:
7503
diff
changeset
|
950 DEFUNX ("isalnum", Fisalnum, args, , |
3361 | 951 "-*- texinfo -*-\n\ |
952 @deftypefn {Mapping Function} {} isalnum (@var{s})\n\ | |
953 Return 1 for characters that are letters or digits (@code{isalpha\n\ | |
4165 | 954 (@var{s})} or @code{isdigit (@var{s})} is true).\n\ |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
955 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
956 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
957 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
958 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
959 retval = args(0).xisalnum (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
960 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
961 print_usage (); |
2089 | 962 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
963 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
964 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
965 |
7528
26d8a92644de
try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents:
7503
diff
changeset
|
966 DEFUNX ("isalpha", Fisalpha, args, , |
3361 | 967 "-*- texinfo -*-\n\ |
968 @deftypefn {Mapping Function} {} isalpha (@var{s})\n\ | |
4168 | 969 @deftypefnx {Mapping Function} {} isletter (@var{s})\n\ |
4165 | 970 Return true for characters that are letters (@code{isupper (@var{s})}\n\ |
971 or @code{islower (@var{s})} is true).\n\ | |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
972 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
973 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
974 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
975 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
976 retval = args(0).xisalpha (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
977 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
978 print_usage (); |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
979 |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
980 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
981 } |
2089 | 982 |
7528
26d8a92644de
try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents:
7503
diff
changeset
|
983 DEFUNX ("isascii", Fisascii, args, , |
3361 | 984 "-*- texinfo -*-\n\ |
985 @deftypefn {Mapping Function} {} isascii (@var{s})\n\ | |
986 Return 1 for characters that are ASCII (in the range 0 to 127 decimal).\n\ | |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
987 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
988 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
989 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
990 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
991 retval = args(0).xisascii (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
992 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
993 print_usage (); |
2089 | 994 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
995 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
996 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
997 |
7528
26d8a92644de
try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
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|
998 DEFUNX ("iscntrl", Fiscntrl, args, , |
3361 | 999 "-*- texinfo -*-\n\ |
1000 @deftypefn {Mapping Function} {} iscntrl (@var{s})\n\ | |
1001 Return 1 for control characters.\n\ | |
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|
1002 @end deftypefn") |
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convert mapper functions to new format
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|
1003 { |
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|
1004 octave_value retval; |
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|
1005 if (args.length () == 1) |
9813
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improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
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|
1006 retval = args(0).xiscntrl (); |
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|
1007 else |
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|
1008 print_usage (); |
2089 | 1009 |
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|
1010 return retval; |
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|
1011 } |
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|
1012 |
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|
1013 DEFUNX ("isdigit", Fisdigit, args, , |
3361 | 1014 "-*- texinfo -*-\n\ |
1015 @deftypefn {Mapping Function} {} isdigit (@var{s})\n\ | |
1016 Return 1 for characters that are decimal digits.\n\ | |
7503
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convert mapper functions to new format
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|
1017 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
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|
1018 { |
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|
1019 octave_value retval; |
8c32f95c2639
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David Bateman <dbateman@free.fr>
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|
1020 if (args.length () == 1) |
9813
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improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
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|
1021 retval = args(0).xisdigit (); |
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convert mapper functions to new format
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|
1022 else |
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|
1023 print_usage (); |
2089 | 1024 |
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|
1025 return retval; |
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|
1026 } |
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|
1027 |
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|
1028 DEFUN (isinf, args, , |
3369 | 1029 "-*- texinfo -*-\n\ |
1030 @deftypefn {Mapping Function} {} isinf (@var{x})\n\ | |
1031 Return 1 for elements of @var{x} that are infinite and zero\n\ | |
9041
853f96e8008f
Cleanup documentation file matrix.texi
Rik <rdrider0-list@yahoo.com>
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8920
diff
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|
1032 otherwise. For example,\n\ |
3369 | 1033 \n\ |
1034 @example\n\ | |
1035 @group\n\ | |
4025 | 1036 isinf ([13, Inf, NA, NaN])\n\ |
1037 @result{} [ 0, 1, 0, 0 ]\n\ | |
3369 | 1038 @end group\n\ |
1039 @end example\n\ | |
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|
1040 @end deftypefn") |
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David Bateman <dbateman@free.fr>
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|
1041 { |
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|
1042 octave_value retval; |
8c32f95c2639
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David Bateman <dbateman@free.fr>
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|
1043 if (args.length () == 1) |
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improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
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|
1044 retval = args(0).isinf (); |
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|
1045 else |
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|
1046 print_usage (); |
529 | 1047 |
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|
1048 return retval; |
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|
1049 } |
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|
1050 |
7814
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|
1051 /* |
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|
1052 |
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Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
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|
1053 %!assert(isinf (Inf)); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
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|
1054 %!assert(!isinf (NaN)); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
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|
1055 %!assert(!(isinf (NA))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
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|
1056 %!assert(isinf (rand(1,10)), false(1,10)); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
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|
1057 %!assert(isinf([NaN -Inf -1 0 1 Inf NA]), [false, true, false, false, false, true, false]); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
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|
1058 |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
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|
1059 %!assert(isinf (single(Inf))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
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|
1060 %!assert(!(isinf (single(NaN)))); |
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Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
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|
1061 %!assert(!(isinf (single(NA)))); |
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Second set of single precision test code and fix of resulting bugs
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|
1062 %!assert(isinf (single(rand(1,10))), false(1,10)); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
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|
1063 %!assert(isinf(single([NaN -Inf -1 0 1 Inf NA])), [false, true, false, false, false, true, false]); |
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Second set of single precision test code and fix of resulting bugs
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|
1064 |
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Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
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|
1065 */ |
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Second set of single precision test code and fix of resulting bugs
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|
1066 |
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try to avoid ctype macro problems
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|
1067 DEFUNX ("isgraph", Fisgraph, args, , |
3361 | 1068 "-*- texinfo -*-\n\ |
1069 @deftypefn {Mapping Function} {} isgraph (@var{s})\n\ | |
1070 Return 1 for printable characters (but not the space character).\n\ | |
7503
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|
1071 @end deftypefn") |
8c32f95c2639
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|
1072 { |
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|
1073 octave_value retval; |
8c32f95c2639
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|
1074 if (args.length () == 1) |
9813
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improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
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|
1075 retval = args(0).xisgraph (); |
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|
1076 else |
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|
1077 print_usage (); |
529 | 1078 |
7503
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|
1079 return retval; |
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|
1080 } |
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|
1081 |
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try to avoid ctype macro problems
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|
1082 DEFUNX ("islower", Fislower, args, , |
3361 | 1083 "-*- texinfo -*-\n\ |
1084 @deftypefn {Mapping Function} {} islower (@var{s})\n\ | |
1085 Return 1 for characters that are lower case letters.\n\ | |
7503
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|
1086 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
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|
1087 { |
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convert mapper functions to new format
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|
1088 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
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changeset
|
1089 if (args.length () == 1) |
9813
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improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
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|
1090 retval = args(0).xislower (); |
7503
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convert mapper functions to new format
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diff
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|
1091 else |
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convert mapper functions to new format
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|
1092 print_usage (); |
2089 | 1093 |
7503
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changeset
|
1094 return retval; |
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convert mapper functions to new format
David Bateman <dbateman@free.fr>
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changeset
|
1095 } |
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changeset
|
1096 |
8c32f95c2639
convert mapper functions to new format
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changeset
|
1097 DEFUN (isna, args, , |
4025 | 1098 "-*- texinfo -*-\n\ |
1099 @deftypefn {Mapping Function} {} isna (@var{x})\n\ | |
1100 Return 1 for elements of @var{x} that are NA (missing) values and zero\n\ | |
5389 | 1101 otherwise. For example,\n\ |
4025 | 1102 \n\ |
1103 @example\n\ | |
1104 @group\n\ | |
6218 | 1105 isna ([13, Inf, NA, NaN])\n\ |
4025 | 1106 @result{} [ 0, 0, 1, 0 ]\n\ |
1107 @end group\n\ | |
1108 @end example\n\ | |
9308
f2bf62f62286
Update documentation for NA and isna functions
Rik <rdrider0-list@yahoo.com>
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9209
diff
changeset
|
1109 @seealso{isnan}\n\ |
7503
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changeset
|
1110 @end deftypefn") |
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|
1111 { |
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convert mapper functions to new format
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|
1112 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
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changeset
|
1113 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
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|
1114 retval = args(0).isna (); |
7503
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|
1115 else |
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changeset
|
1116 print_usage (); |
4025 | 1117 |
7503
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|
1118 return retval; |
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|
1119 } |
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|
1120 |
7814
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Second set of single precision test code and fix of resulting bugs
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|
1121 /* |
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|
1122 |
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Second set of single precision test code and fix of resulting bugs
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|
1123 %!assert(!(isna (Inf))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
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|
1124 %!assert(!isna (NaN)); |
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Second set of single precision test code and fix of resulting bugs
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|
1125 %!assert(isna (NA)); |
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Second set of single precision test code and fix of resulting bugs
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|
1126 %!assert(isna (rand(1,10)), false(1,10)); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
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changeset
|
1127 %!assert(isna([NaN -Inf -1 0 1 Inf NA]), [false, false, false, false, false, false, true]); |
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Second set of single precision test code and fix of resulting bugs
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|
1128 |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
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|
1129 %!assert(!(isna (single(Inf)))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
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|
1130 %!assert(!isna (single(NaN))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
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|
1131 %!assert(isna (single(NA))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
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changeset
|
1132 %!assert(isna (single(rand(1,10))), false(1,10)); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
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changeset
|
1133 %!assert(isna(single([NaN -Inf -1 0 1 Inf NA])), [false, false, false, false, false, false, true]); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
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|
1134 |
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Second set of single precision test code and fix of resulting bugs
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|
1135 */ |
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Second set of single precision test code and fix of resulting bugs
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|
1136 |
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changeset
|
1137 DEFUN (isnan, args, , |
3369 | 1138 "-*- texinfo -*-\n\ |
1139 @deftypefn {Mapping Function} {} isnan (@var{x})\n\ | |
1140 Return 1 for elements of @var{x} that are NaN values and zero\n\ | |
5389 | 1141 otherwise. NA values are also considered NaN values. For example,\n\ |
3369 | 1142 \n\ |
1143 @example\n\ | |
1144 @group\n\ | |
4025 | 1145 isnan ([13, Inf, NA, NaN])\n\ |
5389 | 1146 @result{} [ 0, 0, 1, 1 ]\n\ |
3369 | 1147 @end group\n\ |
1148 @end example\n\ | |
9308
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Update documentation for NA and isna functions
Rik <rdrider0-list@yahoo.com>
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changeset
|
1149 @seealso{isna}\n\ |
7503
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|
1150 @end deftypefn") |
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|
1151 { |
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changeset
|
1152 octave_value retval; |
8c32f95c2639
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diff
changeset
|
1153 if (args.length () == 1) |
9813
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improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
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changeset
|
1154 retval = args(0).isnan (); |
7503
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diff
changeset
|
1155 else |
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changeset
|
1156 print_usage (); |
624 | 1157 |
7503
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changeset
|
1158 return retval; |
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changeset
|
1159 } |
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changeset
|
1160 |
7814
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|
1161 /* |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1162 |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1163 %!assert(!(isnan (Inf))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1164 %!assert(isnan (NaN)); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1165 %!assert(isnan (NA)); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1166 %!assert(isnan (rand(1,10)), false(1,10)); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1167 %!assert(isnan([NaN -Inf -1 0 1 Inf NA]), [true, false, false, false, false, false, true]); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1168 |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1169 %!assert(!(isnan (single(Inf)))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1170 %!assert(isnan (single(NaN))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1171 %!assert(isnan (single(NA))); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1172 %!assert(isnan (single(rand(1,10))), false(1,10)); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1173 %!assert(isnan(single([NaN -Inf -1 0 1 Inf NA])), [true, false, false, false, false, false, true]); |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1174 |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1175 */ |
87865ed7405f
Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents:
7667
diff
changeset
|
1176 |
7528
26d8a92644de
try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents:
7503
diff
changeset
|
1177 DEFUNX ("isprint", Fisprint, args, , |
3361 | 1178 "-*- texinfo -*-\n\ |
1179 @deftypefn {Mapping Function} {} isprint (@var{s})\n\ | |
1180 Return 1 for printable characters (including the space character).\n\ | |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1181 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1182 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1183 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1184 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
1185 retval = args(0).xisprint (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1186 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1187 print_usage (); |
2089 | 1188 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1189 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1190 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1191 |
7528
26d8a92644de
try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents:
7503
diff
changeset
|
1192 DEFUNX ("ispunct", Fispunct, args, , |
3361 | 1193 "-*- texinfo -*-\n\ |
1194 @deftypefn {Mapping Function} {} ispunct (@var{s})\n\ | |
1195 Return 1 for punctuation characters.\n\ | |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1196 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1197 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1198 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1199 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
1200 retval = args(0).xispunct (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1201 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1202 print_usage (); |
2089 | 1203 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1204 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1205 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1206 |
7528
26d8a92644de
try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents:
7503
diff
changeset
|
1207 DEFUNX ("isspace", Fisspace, args, , |
3361 | 1208 "-*- texinfo -*-\n\ |
1209 @deftypefn {Mapping Function} {} isspace (@var{s})\n\ | |
1210 Return 1 for whitespace characters (space, formfeed, newline,\n\ | |
1211 carriage return, tab, and vertical tab).\n\ | |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1212 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1213 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1214 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1215 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
1216 retval = args(0).xisspace (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1217 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1218 print_usage (); |
2089 | 1219 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1220 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1221 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1222 |
7528
26d8a92644de
try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents:
7503
diff
changeset
|
1223 DEFUNX ("isupper", Fisupper, args, , |
3361 | 1224 "-*- texinfo -*-\n\ |
1225 @deftypefn {Mapping Function} {} isupper (@var{s})\n\ | |
1226 Return 1 for upper case letters.\n\ | |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1227 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1228 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1229 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1230 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
1231 retval = args(0).xisupper (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1232 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1233 print_usage (); |
2089 | 1234 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1235 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1236 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1237 |
7528
26d8a92644de
try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents:
7503
diff
changeset
|
1238 DEFUNX ("isxdigit", Fisxdigit, args, , |
3361 | 1239 "-*- texinfo -*-\n\ |
1240 @deftypefn {Mapping Function} {} isxdigit (@var{s})\n\ | |
1241 Return 1 for characters that are hexadecimal digits.\n\ | |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1242 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1243 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1244 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1245 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
1246 retval = args(0).xisxdigit (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1247 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1248 print_usage (); |
2089 | 1249 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1250 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1251 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1252 |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1253 DEFUN (lgamma, args, , |
3321 | 1254 "-*- texinfo -*-\n\ |
5518 | 1255 @deftypefn {Mapping Function} {} lgamma (@var{x})\n\ |
1256 @deftypefnx {Mapping Function} {} gammaln (@var{x})\n\ | |
7601
8a939b217863
Treat negative values to lgamma and beta correctly
David Bateman <dbateman@free.fr>
parents:
7528
diff
changeset
|
1257 Return the natural logarithm of the gamma function of @var{x}.\n\ |
8286
6f2d95255911
fix @seealso references to point to existing anchors
Thorsten Meyer <thorsten.meyier@gmx.de>
parents:
8084
diff
changeset
|
1258 @seealso{gamma, gammainc}\n\ |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1259 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1260 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1261 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1262 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
1263 retval = args(0).lgamma (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1264 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1265 print_usage (); |
529 | 1266 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1267 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1268 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1269 |
7667
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
1270 /* |
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
1271 |
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
1272 %!test |
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
1273 %! a = -1i*sqrt(-1/(6.4187*6.4187)); |
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
1274 %! assert (lgamma(a), lgamma(real(a))); |
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
1275 |
7815
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1276 %!test |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1277 %! x = [.5, 1, 1.5, 2, 3, 4, 5]; |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1278 %! v = [sqrt(pi), 1, .5*sqrt(pi), 1, 2, 6, 24]; |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1279 %! assert(lgamma(x), log(v), sqrt(eps)) |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1280 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1281 %!test |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1282 %! a = single(-1i*sqrt(-1/(6.4187*6.4187))); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1283 %! assert (lgamma(a), lgamma(real(a))); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1284 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1285 %!test |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1286 %! x = single([.5, 1, 1.5, 2, 3, 4, 5]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1287 %! v = single([sqrt(pi), 1, .5*sqrt(pi), 1, 2, 6, 24]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1288 %! assert(lgamma(x), log(v), sqrt(eps ('single'))) |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1289 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1290 %!error lgamma(); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1291 %!error lgamma(1,2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1292 |
7667
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
1293 */ |
fb3a6c53c2b2
Allow negative zero imaginary part to be treated as zero for erf, erfc, gamma and lgamma mapper function
David Bateman <dbateman@free.fr>
parents:
7638
diff
changeset
|
1294 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1295 DEFUN (log, args, , |
3321 | 1296 "-*- texinfo -*-\n\ |
1297 @deftypefn {Mapping Function} {} log (@var{x})\n\ | |
9141
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
1298 Compute the natural logarithm,\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
1299 @tex\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
1300 $\\ln{(x)},$\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
1301 @end tex\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
1302 @ifnottex\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
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|
1303 @code{ln (@var{x})},\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
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diff
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|
1304 @end ifnottex\n\ |
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Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
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diff
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|
1305 for each element of @var{x}. To compute the\n\ |
3321 | 1306 matrix logarithm, see @ref{Linear Algebra}.\n\ |
9141
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Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
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diff
changeset
|
1307 @seealso{exp, log1p, log2, log10, logspace}\n\ |
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diff
changeset
|
1308 @end deftypefn") |
8c32f95c2639
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David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1309 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1310 octave_value retval; |
8c32f95c2639
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David Bateman <dbateman@free.fr>
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diff
changeset
|
1311 if (args.length () == 1) |
9813
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improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1312 retval = args(0).log (); |
7503
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|
1313 else |
8c32f95c2639
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diff
changeset
|
1314 print_usage (); |
529 | 1315 |
7503
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David Bateman <dbateman@free.fr>
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changeset
|
1316 return retval; |
8c32f95c2639
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diff
changeset
|
1317 } |
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changeset
|
1318 |
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|
1319 /* |
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changeset
|
1320 |
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David Bateman <dbateman@free.fr>
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|
1321 %!assert(log ([1, e, e^2]), [0, 1, 2], sqrt (eps)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
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|
1322 %!assert(log ([-0.5, -1.5, -2.5]), log([0.5, 1.5, 2.5]) + pi*1i, sqrt (eps)); |
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Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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changeset
|
1323 |
8084
46aa04055325
Use eps(single) as tolerance for single precesion test.
Ben Abbott <bpabbott@mac.com>
parents:
8067
diff
changeset
|
1324 %!assert(log (single([1, e, e^2])), single([0, 1, 2]), sqrt (eps('single'))); |
8067
c476c2214a90
Adjust tolerance to single precision test.
Ben Abbott <bpabbott@mac.com>
parents:
8047
diff
changeset
|
1325 %!assert(log (single([-0.5, -1.5, -2.5])), single(log([0.5, 1.5, 2.5]) + pi*1i), 4*eps('single')); |
7815
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Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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changeset
|
1326 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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changeset
|
1327 %!error log (); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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changeset
|
1328 %!error log (1, 2); |
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Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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|
1329 |
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Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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changeset
|
1330 */ |
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Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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|
1331 |
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convert mapper functions to new format
David Bateman <dbateman@free.fr>
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changeset
|
1332 DEFUN (log10, args, , |
3321 | 1333 "-*- texinfo -*-\n\ |
1334 @deftypefn {Mapping Function} {} log10 (@var{x})\n\ | |
9141
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Update section 17.1 (Utility Functions) of arith.txi
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|
1335 Compute the base-10 logarithm of each element of @var{x}.\n\ |
5642 | 1336 @seealso{log, log2, logspace, exp}\n\ |
7503
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convert mapper functions to new format
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diff
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|
1337 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1338 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
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diff
changeset
|
1339 octave_value retval; |
8c32f95c2639
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David Bateman <dbateman@free.fr>
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diff
changeset
|
1340 if (args.length () == 1) |
9813
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improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
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|
1341 retval = args(0).log10 (); |
7503
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|
1342 else |
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David Bateman <dbateman@free.fr>
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changeset
|
1343 print_usage (); |
529 | 1344 |
7503
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|
1345 return retval; |
8c32f95c2639
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changeset
|
1346 } |
8c32f95c2639
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diff
changeset
|
1347 |
7815
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Add some single precision test code and fix resulting bugs
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changeset
|
1348 /* |
a41df65f3f00
Add some single precision test code and fix resulting bugs
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changeset
|
1349 |
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David Bateman <dbateman@free.fr>
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|
1350 %!assert(log10 ([0.01, 0.1, 1, 10, 100]), [-2, -1, 0, 1, 2], sqrt (eps)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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|
1351 %!assert(log10 (single([0.01, 0.1, 1, 10, 100])), single([-2, -1, 0, 1, 2]), sqrt (eps ('single'))); |
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Add some single precision test code and fix resulting bugs
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changeset
|
1352 |
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Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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changeset
|
1353 %!error log10 (); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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changeset
|
1354 %!error log10 (1, 2); |
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Add some single precision test code and fix resulting bugs
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changeset
|
1355 |
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Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff
changeset
|
1356 */ |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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changeset
|
1357 |
7638
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implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
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changeset
|
1358 DEFUN (log1p, args, , |
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1359 "-*- texinfo -*-\n\ |
2df457529cfa
implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
1360 @deftypefn {Mapping Function} {} log1p (@var{x})\n\ |
9141
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Update section 17.1 (Utility Functions) of arith.txi
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|
1361 Compute\n\ |
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Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
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|
1362 @tex\n\ |
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Update section 17.1 (Utility Functions) of arith.txi
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|
1363 $\\ln{(1 + x)}$\n\ |
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Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
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|
1364 @end tex\n\ |
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Update section 17.1 (Utility Functions) of arith.txi
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|
1365 @ifnottex\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
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parents:
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changeset
|
1366 @code{log (1 + @var{x})}\n\ |
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Update section 17.1 (Utility Functions) of arith.txi
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|
1367 @end ifnottex\n\ |
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Update section 17.1 (Utility Functions) of arith.txi
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|
1368 accurately in the neighborhood of zero.\n\ |
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Update section 17.1 (Utility Functions) of arith.txi
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|
1369 @seealso{log, exp, expm1}\n\ |
7638
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changeset
|
1370 @end deftypefn") |
2df457529cfa
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diff
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|
1371 { |
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changeset
|
1372 octave_value retval; |
2df457529cfa
implement expm1 and log1p functions
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diff
changeset
|
1373 if (args.length () == 1) |
9813
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improve & partially revert previous change
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|
1374 retval = args(0).log1p (); |
7638
2df457529cfa
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|
1375 else |
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implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1376 print_usage (); |
2df457529cfa
implement expm1 and log1p functions
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changeset
|
1377 |
2df457529cfa
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|
1378 return retval; |
2df457529cfa
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diff
changeset
|
1379 } |
2df457529cfa
implement expm1 and log1p functions
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parents:
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diff
changeset
|
1380 |
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convert mapper functions to new format
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changeset
|
1381 DEFUN (real, args, , |
3381 | 1382 "-*- texinfo -*-\n\ |
3321 | 1383 @deftypefn {Mapping Function} {} real (@var{z})\n\ |
1384 Return the real part of @var{z}.\n\ | |
5642 | 1385 @seealso{imag, conj}\n\ |
7503
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changeset
|
1386 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
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parents:
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diff
changeset
|
1387 { |
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convert mapper functions to new format
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diff
changeset
|
1388 octave_value retval; |
8c32f95c2639
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David Bateman <dbateman@free.fr>
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diff
changeset
|
1389 if (args.length () == 1) |
9813
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improve & partially revert previous change
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|
1390 retval = args(0).real (); |
7503
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|
1391 else |
8c32f95c2639
convert mapper functions to new format
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changeset
|
1392 print_usage (); |
529 | 1393 |
7503
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changeset
|
1394 return retval; |
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changeset
|
1395 } |
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changeset
|
1396 |
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diff
changeset
|
1397 /* |
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changeset
|
1398 |
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|
1399 %!assert(real (1), 1); |
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|
1400 %!assert(real (i), 0); |
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|
1401 %!assert(real (1+i), 1); |
8459
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improve indexing of diagonal & permutation matrices
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|
1402 %!assert(real ([1, i; i, 1]), full (eye (2))); |
7815
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|
1403 |
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|
1404 %!assert(real (single(1)), single(1)); |
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changeset
|
1405 %!assert(real (single(i)), single(0)); |
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|
1406 %!assert(real (single(1+i)), single(1)); |
8459
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diff
changeset
|
1407 %!assert(real (single([1, i; i, 1])), full (eye (2,'single'))); |
7815
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changeset
|
1408 |
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changeset
|
1409 %!error real (); |
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|
1410 %!error real (1, 2); |
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|
1411 |
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changeset
|
1412 */ |
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changeset
|
1413 |
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changeset
|
1414 DEFUN (round, args, , |
3321 | 1415 "-*- texinfo -*-\n\ |
1416 @deftypefn {Mapping Function} {} round (@var{x})\n\ | |
1417 Return the integer nearest to @var{x}. If @var{x} is complex, return\n\ | |
1418 @code{round (real (@var{x})) + round (imag (@var{x})) * I}.\n\ | |
9141
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|
1419 @example\n\ |
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|
1420 @group\n\ |
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changeset
|
1421 round ([-2.7, 2.7])\n\ |
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|
1422 @result{} -3 3\n\ |
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changeset
|
1423 @end group\n\ |
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|
1424 @end example\n\ |
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changeset
|
1425 @seealso{ceil, floor, fix}\n\ |
7503
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diff
changeset
|
1426 @end deftypefn") |
8c32f95c2639
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changeset
|
1427 { |
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7385
diff
changeset
|
1428 octave_value retval; |
8c32f95c2639
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7385
diff
changeset
|
1429 if (args.length () == 1) |
9813
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changeset
|
1430 retval = args(0).round (); |
7503
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diff
changeset
|
1431 else |
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diff
changeset
|
1432 print_usage (); |
529 | 1433 |
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David Bateman <dbateman@free.fr>
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7385
diff
changeset
|
1434 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1435 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1436 |
7815
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1437 /* |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1438 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1439 %!assert(round (1), 1); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1440 %!assert(round (1.1), 1); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1441 %!assert(round (5.5), 6); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1442 %!assert(round (i), i); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1443 %!assert(round (2.5+3.5i), 3+4i); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1444 %!assert(round (-2.6), -3); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1445 %!assert(round ([1.1, -2.4; -3.7, 7.1]), [1, -2; -4, 7]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1446 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff
changeset
|
1447 %!assert(round (single(1)), single(1)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1448 %!assert(round (single(1.1)), single(1)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1449 %!assert(round (single(5.5)), single(6)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1450 %!assert(round (single(i)), single(i)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1451 %!assert(round (single(2.5+3.5i)), single(3+4i)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1452 %!assert(round (single(-2.6)), single(-3)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1453 %!assert(round (single([1.1, -2.4; -3.7, 7.1])), single([1, -2; -4, 7])); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1454 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff
changeset
|
1455 %!error round (); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1456 %!error round (1, 2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff
changeset
|
1457 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1458 */ |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff
changeset
|
1459 |
7636
99c410f7f0b0
implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents:
7601
diff
changeset
|
1460 DEFUN (roundb, args, , |
99c410f7f0b0
implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents:
7601
diff
changeset
|
1461 "-*- texinfo -*-\n\ |
99c410f7f0b0
implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents:
7601
diff
changeset
|
1462 @deftypefn {Mapping Function} {} roundb (@var{x})\n\ |
9064
7c02ec148a3c
Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents:
9041
diff
changeset
|
1463 Return the integer nearest to @var{x}. If there are two nearest\n\ |
7c02ec148a3c
Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents:
9041
diff
changeset
|
1464 integers, return the even one (banker's rounding). If @var{x} is complex,\n\ |
7636
99c410f7f0b0
implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents:
7601
diff
changeset
|
1465 return @code{roundb (real (@var{x})) + roundb (imag (@var{x})) * I}.\n\ |
9141
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
1466 @seealso{round}\n\ |
7636
99c410f7f0b0
implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1467 @end deftypefn") |
99c410f7f0b0
implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents:
7601
diff
changeset
|
1468 { |
99c410f7f0b0
implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents:
7601
diff
changeset
|
1469 octave_value retval; |
99c410f7f0b0
implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents:
7601
diff
changeset
|
1470 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
1471 retval = args(0).roundb (); |
7636
99c410f7f0b0
implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents:
7601
diff
changeset
|
1472 else |
99c410f7f0b0
implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents:
7601
diff
changeset
|
1473 print_usage (); |
99c410f7f0b0
implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents:
7601
diff
changeset
|
1474 |
99c410f7f0b0
implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents:
7601
diff
changeset
|
1475 return retval; |
99c410f7f0b0
implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents:
7601
diff
changeset
|
1476 } |
99c410f7f0b0
implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents:
7601
diff
changeset
|
1477 |
7503
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diff
changeset
|
1478 DEFUN (sign, args, , |
3321 | 1479 "-*- texinfo -*-\n\ |
1480 @deftypefn {Mapping Function} {} sign (@var{x})\n\ | |
1481 Compute the @dfn{signum} function, which is defined as\n\ | |
1482 @tex\n\ | |
1483 $$\n\ | |
1484 {\\rm sign} (@var{x}) = \\cases{1,&$x>0$;\\cr 0,&$x=0$;\\cr -1,&$x<0$.\\cr}\n\ | |
1485 $$\n\ | |
1486 @end tex\n\ | |
8517
81d6ab3ac93c
Allow documentation tobe built for other formats than tex and info
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changeset
|
1487 @ifnottex\n\ |
3321 | 1488 \n\ |
1489 @example\n\ | |
9064
7c02ec148a3c
Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents:
9041
diff
changeset
|
1490 @group\n\ |
3321 | 1491 -1, x < 0;\n\ |
1492 sign (x) = 0, x = 0;\n\ | |
1493 1, x > 0.\n\ | |
9064
7c02ec148a3c
Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents:
9041
diff
changeset
|
1494 @end group\n\ |
3321 | 1495 @end example\n\ |
8517
81d6ab3ac93c
Allow documentation tobe built for other formats than tex and info
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parents:
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diff
changeset
|
1496 @end ifnottex\n\ |
3321 | 1497 \n\ |
1498 For complex arguments, @code{sign} returns @code{x ./ abs (@var{x})}.\n\ | |
7503
8c32f95c2639
convert mapper functions to new format
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diff
changeset
|
1499 @end deftypefn") |
8c32f95c2639
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parents:
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diff
changeset
|
1500 { |
8c32f95c2639
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David Bateman <dbateman@free.fr>
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7385
diff
changeset
|
1501 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1502 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1503 retval = args(0).signum (); |
7503
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7385
diff
changeset
|
1504 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1505 print_usage (); |
529 | 1506 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1507 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1508 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1509 |
7815
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1510 /* |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff
changeset
|
1511 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1512 %!assert(sign (-2) , -1); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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changeset
|
1513 %!assert(sign (3), 1); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1514 %!assert(sign (0), 0); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1515 %!assert(sign ([1, -pi; e, 0]), [1, -1; 1, 0]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
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diff
changeset
|
1516 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff
changeset
|
1517 %!assert(sign (single(-2)) , single(-1)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1518 %!assert(sign (single(3)), single(1)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1519 %!assert(sign (single(0)), single(0)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1520 %!assert(sign (single([1, -pi; e, 0])), single([1, -1; 1, 0])); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1521 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1522 %!error sign (); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1523 %!error sign (1, 2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1524 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1525 */ |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1526 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
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diff
changeset
|
1527 DEFUN (sin, args, , |
3321 | 1528 "-*- texinfo -*-\n\ |
3428 | 1529 @deftypefn {Mapping Function} {} sin (@var{x})\n\ |
9155
ad20b967e1c9
Update section 17.3 (Trigonometry) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
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diff
changeset
|
1530 Compute the sine for each element of @var{x} in radians.\n\ |
ad20b967e1c9
Update section 17.3 (Trigonometry) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
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diff
changeset
|
1531 @seealso{asin, sind, sinh}\n\ |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1532 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1533 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1534 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1535 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
1536 retval = args(0).sin (); |
7503
8c32f95c2639
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parents:
7385
diff
changeset
|
1537 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1538 print_usage (); |
529 | 1539 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1540 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1541 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1542 |
7815
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1543 /* |
a41df65f3f00
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David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1544 |
a41df65f3f00
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David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1545 %!test |
a41df65f3f00
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David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1546 %! rt2 = sqrt (2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1547 %! rt3 = sqrt (3); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1548 %! x = [0, pi/6, pi/4, pi/3, pi/2, 2*pi/3, 3*pi/4, 5*pi/6, pi]; |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1549 %! v = [0, 1/2, rt2/2, rt3/2, 1, rt3/2, rt2/2, 1/2, 0]; |
a41df65f3f00
Add some single precision test code and fix resulting bugs
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diff
changeset
|
1550 %! assert(sin (x), v, sqrt (eps)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
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parents:
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diff
changeset
|
1551 |
a41df65f3f00
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7814
diff
changeset
|
1552 %!test |
a41df65f3f00
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parents:
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diff
changeset
|
1553 %! rt2 = sqrt (2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
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diff
changeset
|
1554 %! rt3 = sqrt (3); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
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parents:
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diff
changeset
|
1555 %! x = single([0, pi/6, pi/4, pi/3, pi/2, 2*pi/3, 3*pi/4, 5*pi/6, pi]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
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parents:
7814
diff
changeset
|
1556 %! v = single([0, 1/2, rt2/2, rt3/2, 1, rt3/2, rt2/2, 1/2, 0]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
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diff
changeset
|
1557 %! assert(sin (x), v, sqrt (eps('single'))); |
a41df65f3f00
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7814
diff
changeset
|
1558 |
a41df65f3f00
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parents:
7814
diff
changeset
|
1559 %!error sin (); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1560 %!error sin (1, 2); |
a41df65f3f00
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parents:
7814
diff
changeset
|
1561 |
a41df65f3f00
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parents:
7814
diff
changeset
|
1562 */ |
a41df65f3f00
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David Bateman <dbateman@free.fr>
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7814
diff
changeset
|
1563 |
7503
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parents:
7385
diff
changeset
|
1564 DEFUN (sinh, args, , |
3321 | 1565 "-*- texinfo -*-\n\ |
3428 | 1566 @deftypefn {Mapping Function} {} sinh (@var{x})\n\ |
9155
ad20b967e1c9
Update section 17.3 (Trigonometry) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9154
diff
changeset
|
1567 Compute the hyperbolic sine for each element of @var{x}.\n\ |
ad20b967e1c9
Update section 17.3 (Trigonometry) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9154
diff
changeset
|
1568 @seealso{asinh, cosh, tanh}\n\ |
7503
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convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1569 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1570 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1571 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1572 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
1573 retval = args(0).sinh (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1574 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1575 print_usage (); |
529 | 1576 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1577 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1578 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1579 |
7815
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1580 /* |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1581 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1582 %!test |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1583 %! x = [0, pi/2*i, pi*i, 3*pi/2*i]; |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1584 %! v = [0, i, 0, -i]; |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1585 %! assert(sinh (x), v, sqrt (eps)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1586 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1587 %!test |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1588 %! x = single([0, pi/2*i, pi*i, 3*pi/2*i]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1589 %! v = single([0, i, 0, -i]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1590 %! assert(sinh (x), v, sqrt (eps('single'))); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1591 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1592 %!error sinh (); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1593 %!error sinh (1, 2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1594 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1595 */ |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1596 |
7503
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convert mapper functions to new format
David Bateman <dbateman@free.fr>
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diff
changeset
|
1597 DEFUN (sqrt, args, , |
3321 | 1598 "-*- texinfo -*-\n\ |
1599 @deftypefn {Mapping Function} {} sqrt (@var{x})\n\ | |
9141
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
1600 Compute the square root of each element of @var{x}. If @var{x} is negative,\n\ |
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
1601 a complex result is returned. To compute the matrix square root, see\n\ |
3321 | 1602 @ref{Linear Algebra}.\n\ |
9141
c1fff751b5a8
Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9065
diff
changeset
|
1603 @seealso{realsqrt}\n\ |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
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diff
changeset
|
1604 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1605 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1606 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1607 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1608 retval = args(0).sqrt (); |
7503
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diff
changeset
|
1609 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
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7385
diff
changeset
|
1610 print_usage (); |
529 | 1611 |
7503
8c32f95c2639
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David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1612 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1613 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1614 |
7815
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1615 /* |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1616 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1617 %!assert(sqrt (4), 2) |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1618 %!assert(sqrt (-1), i) |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff
changeset
|
1619 %!assert(sqrt (1+i), exp (0.5 * log (1+i)), sqrt (eps)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1620 %!assert(sqrt([4, -4; i, 1-i]), [2, 2i; exp(0.5 * log (i)), exp(0.5 * log (1-i))], sqrt(eps)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1621 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1622 %!assert(sqrt (single(4)), single(2)) |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1623 %!assert(sqrt (single(-1)), single(i)) |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1624 %!assert(sqrt (single(1+i)), single(exp (0.5 * log (1+i))), sqrt (eps('single'))); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1625 %!assert(sqrt(single([4, -4; i, 1-i])), single([2, 2i; exp(0.5 * log (i)), exp(0.5 * log (1-i))]), sqrt(eps('single'))); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1626 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1627 %!error sqrt (); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1628 %!error sqrt (1, 2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1629 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1630 */ |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1631 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1632 DEFUN (tan, args, , |
3321 | 1633 "-*- texinfo -*-\n\ |
1634 @deftypefn {Mapping Function} {} tan (@var{z})\n\ | |
9155
ad20b967e1c9
Update section 17.3 (Trigonometry) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9154
diff
changeset
|
1635 Compute the tangent for each element of @var{x} in radians.\n\ |
ad20b967e1c9
Update section 17.3 (Trigonometry) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9154
diff
changeset
|
1636 @seealso{atan, tand, tanh}\n\ |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1637 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1638 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1639 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1640 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
1641 retval = args(0).tan (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1642 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1643 print_usage (); |
529 | 1644 |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1645 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1646 } |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1647 |
7815
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1648 /* |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1649 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1650 %!test |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1651 %! rt2 = sqrt (2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1652 %! rt3 = sqrt (3); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1653 %! x = [0, pi/6, pi/4, pi/3, 2*pi/3, 3*pi/4, 5*pi/6, pi]; |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1654 %! v = [0, rt3/3, 1, rt3, -rt3, -1, -rt3/3, 0]; |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1655 %! assert(tan (x), v, sqrt (eps)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1656 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1657 %!test |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1658 %! rt2 = sqrt (2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1659 %! rt3 = sqrt (3); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1660 %! x = single([0, pi/6, pi/4, pi/3, 2*pi/3, 3*pi/4, 5*pi/6, pi]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1661 %! v = single([0, rt3/3, 1, rt3, -rt3, -1, -rt3/3, 0]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1662 %! assert(tan (x), v, sqrt (eps('single'))); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1663 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1664 %!error tan (); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1665 %!error tan (1, 2); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1666 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1667 */ |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff
changeset
|
1668 |
7503
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convert mapper functions to new format
David Bateman <dbateman@free.fr>
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7385
diff
changeset
|
1669 DEFUN (tanh, args, , |
3321 | 1670 "-*- texinfo -*-\n\ |
3428 | 1671 @deftypefn {Mapping Function} {} tanh (@var{x})\n\ |
9155
ad20b967e1c9
Update section 17.3 (Trigonometry) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9154
diff
changeset
|
1672 Compute hyperbolic tangent for each element of @var{x}.\n\ |
ad20b967e1c9
Update section 17.3 (Trigonometry) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents:
9154
diff
changeset
|
1673 @seealso{atanh, sinh, cosh}\n\ |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1674 @end deftypefn") |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1675 { |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1676 octave_value retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1677 if (args.length () == 1) |
9813
8fa32b527d9a
improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
1678 retval = args(0).tanh (); |
7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1679 else |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1680 print_usage (); |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1681 |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1682 return retval; |
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7385
diff
changeset
|
1683 } |
1562 | 1684 |
7815
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1685 /* |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1686 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1687 %!test |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1688 %! x = [0, pi*i]; |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1689 %! v = [0, 0]; |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1690 %! assert(tanh (x), v, sqrt (eps)); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
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parents:
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diff
changeset
|
1691 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1692 %!test |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
7814
diff
changeset
|
1693 %! x = single([0, pi*i]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1694 %! v = single([0, 0]); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff
changeset
|
1695 %! assert(tanh (x), v, sqrt (eps('single'))); |
a41df65f3f00
Add some single precision test code and fix resulting bugs
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parents:
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diff
changeset
|
1696 |
a41df65f3f00
Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff
changeset
|
1697 %!error tanh (); |
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1698 %!error tanh (1, 2); |
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|
1699 |
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Add some single precision test code and fix resulting bugs
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|
1700 */ |
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|
1701 |
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|
1702 DEFUNX ("toascii", Ftoascii, args, , |
3361 | 1703 "-*- texinfo -*-\n\ |
1704 @deftypefn {Mapping Function} {} toascii (@var{s})\n\ | |
1705 Return ASCII representation of @var{s} in a matrix. For example,\n\ | |
1706 \n\ | |
1707 @example\n\ | |
1708 @group\n\ | |
1709 toascii (\"ASCII\")\n\ | |
1710 @result{} [ 65, 83, 67, 73, 73 ]\n\ | |
1711 @end group\n\ | |
1712 \n\ | |
1713 @end example\n\ | |
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Fix docstrings, add examples, references and tests to string functions
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1714 @seealso{char}\n\ |
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1715 @end deftypefn") |
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|
1716 { |
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1717 octave_value retval; |
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1718 if (args.length () == 1) |
9813
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1719 retval = args(0).xtoascii (); |
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1720 else |
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1721 print_usage (); |
2267 | 1722 |
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1723 return retval; |
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1724 } |
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1725 |
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1726 DEFUNX ("tolower", Ftolower, args, , |
3361 | 1727 "-*- texinfo -*-\n\ |
1728 @deftypefn {Mapping Function} {} tolower (@var{s})\n\ | |
8387
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1729 @deftypefnx {Mapping Function} {} lower (@var{s})\n\ |
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1730 Return a copy of the string or cell string @var{s}, with each upper-case\n\ |
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Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction.
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1731 character replaced by the corresponding lower-case one; non-alphabetic\n\ |
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1732 characters are left unchanged. For example,\n\ |
3361 | 1733 \n\ |
1734 @example\n\ | |
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|
1735 @group\n\ |
3361 | 1736 tolower (\"MiXeD cAsE 123\")\n\ |
1737 @result{} \"mixed case 123\"\n\ | |
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1738 @end group\n\ |
3361 | 1739 @end example\n\ |
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1740 @seealso{toupper}\n\ |
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1741 @end deftypefn") |
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|
1742 { |
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1743 octave_value retval; |
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|
1744 if (args.length () == 1) |
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|
1745 retval = args(0).xtolower (); |
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1746 else |
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1747 print_usage (); |
2267 | 1748 |
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1749 return retval; |
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|
1750 } |
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1751 |
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|
1752 DEFALIAS (lower, tolower); |
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1753 |
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|
1754 /* |
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|
1755 |
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|
1756 %!error <Invalid call to tolower.*> tolower(); |
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|
1757 %!error <Invalid call to tolower.*> lower(); |
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1758 %!assert(tolower("OCTAVE"), "octave"); |
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|
1759 %!assert(tolower("123OCTave!_&"), "123octave!_&"); |
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|
1760 %!assert(tolower({"ABC", "DEF", {"GHI", {"JKL"}}}), {"abc", "def", {"ghi", {"jkl"}}}); |
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|
1761 %!assert(tolower(["ABC"; "DEF"]), ["abc"; "def"]); |
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|
1762 %!assert(tolower({["ABC"; "DEF"]}), {["abc";"def"]}); |
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|
1763 %!assert(tolower(68), "d"); |
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|
1764 %!assert(tolower({[68, 68; 68, 68]}), {["dd";"dd"]}); |
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|
1765 %!test |
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|
1766 %! a(3,3,3,3) = "D"; |
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|
1767 %! assert(tolower(a)(3,3,3,3), "d"); |
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|
1768 |
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|
1769 */ |
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|
1770 |
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|
1771 |
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1772 DEFUNX ("toupper", Ftoupper, args, , |
3361 | 1773 "-*- texinfo -*-\n\ |
3368 | 1774 @deftypefn {Built-in Function} {} toupper (@var{s})\n\ |
8387
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|
1775 @deftypefnx {Built-in Function} {} upper (@var{s})\n\ |
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|
1776 Return a copy of the string or cell string @var{s}, with each lower-case\n\ |
9209
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Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction.
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|
1777 character replaced by the corresponding upper-case one; non-alphabetic\n\ |
8387
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|
1778 characters are left unchanged. For example,\n\ |
3361 | 1779 \n\ |
1780 @example\n\ | |
1781 @group\n\ | |
3552 | 1782 toupper (\"MiXeD cAsE 123\")\n\ |
3361 | 1783 @result{} \"MIXED CASE 123\"\n\ |
1784 @end group\n\ | |
1785 @end example\n\ | |
8442
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|
1786 @seealso{tolower}\n\ |
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|
1787 @end deftypefn") |
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|
1788 { |
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|
1789 octave_value retval; |
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|
1790 if (args.length () == 1) |
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1791 retval = args(0).xtoupper (); |
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|
1792 else |
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|
1793 print_usage (); |
3206 | 1794 |
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1795 return retval; |
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|
1796 } |
3321 | 1797 |
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|
1798 DEFALIAS (upper, toupper); |
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|
1799 |
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|
1800 /* |
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|
1801 |
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1802 %!error <Invalid call to toupper.*> toupper(); |
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|
1803 %!error <Invalid call to toupper.*> upper(); |
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|
1804 %!assert(toupper("octave"), "OCTAVE"); |
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|
1805 %!assert(toupper("123OCTave!_&"), "123OCTAVE!_&"); |
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|
1806 %!assert(toupper({"abc", "def", {"ghi", {"jkl"}}}), {"ABC", "DEF", {"GHI", {"JKL"}}}); |
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|
1807 %!assert(toupper(["abc"; "def"]), ["ABC"; "DEF"]); |
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|
1808 %!assert(toupper({["abc"; "def"]}), {["ABC";"DEF"]}); |
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|
1809 %!assert(toupper(100), "D"); |
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|
1810 %!assert(toupper({[100, 100; 100, 100]}), {["DD";"DD"]}); |
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1811 %!test |
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1812 %! a(3,3,3,3) = "d"; |
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|
1813 %! assert(toupper(a)(3,3,3,3), "D"); |
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|
1814 |
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|
1815 */ |
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|
1816 |
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1817 DEFALIAS (gammaln, lgamma); |
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|
1818 |
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|
1819 DEFALIAS (isfinite, finite); |