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annotate src/mappers.cc @ 10049:44e889c67abe

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mappers.cc: Change test tolerance from 1e-16 to eps.
author Ben Abbott <bpabbott@mac.com>
date Sat, 02 Jan 2010 12:16:55 -0500
parents 1bb1ed717d2f
children cd96d29c5efa
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2
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3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
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John W. Eaton <jwe@octave.org>
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4 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 John W. Eaton
1
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5
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6 This file is part of Octave.
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7
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8 Octave is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 3 of the License, or (at your
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11 option) any later version.
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12
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13 Octave is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Octave; see the file COPYING. If not, see
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20 <http://www.gnu.org/licenses/>.
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22 */
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23
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24 #ifdef HAVE_CONFIG_H
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25 #include <config.h>
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26 #endif
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27
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28 #include <cctype>
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29 #include <cfloat>
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30
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31 #include "lo-ieee.h"
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32 #include "lo-specfun.h"
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33 #include "lo-mappers.h"
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34
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35 #include "defun.h"
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36 #include "error.h"
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37 #include "variables.h"
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38
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39 DEFUN (abs, args, ,
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40 "-*- texinfo -*-\n\
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41 @deftypefn {Mapping Function} {} abs (@var{z})\n\
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42 Compute the magnitude of @var{z}, defined as\n\
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43 @tex\n\
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44 $|z| = \\sqrt{x^2 + y^2}$.\n\
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45 @end tex\n\
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46 @ifnottex\n\
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47 |@var{z}| = @code{sqrt (x^2 + y^2)}.\n\
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48 @end ifnottex\n\
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49 \n\
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50 For example,\n\
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51 \n\
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52 @example\n\
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53 @group\n\
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54 abs (3 + 4i)\n\
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55 @result{} 5\n\
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56 @end group\n\
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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 ();
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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, ,
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89 "-*- texinfo -*-\n\
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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 ();
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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, ,
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126 "-*- texinfo -*-\n\
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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 ();
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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, ,
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159 "-*- texinfo -*-\n\
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160 @deftypefn {Mapping Function} {} angle (@var{z})\n\
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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 ();
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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, ,
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174 "-*- texinfo -*-\n\
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175 @deftypefn {Mapping Function} {} arg (@var{z})\n\
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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\
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185 \n\
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186 For example,\n\
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187 \n\
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188 @example\n\
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189 @group\n\
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190 arg (3 + 4i)\n\
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191 @result{} 0.92730\n\
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192 @end group\n\
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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 ();
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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, ,
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225 "-*- texinfo -*-\n\
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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 }
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239
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240 /*
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241 %!test
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242 %! rt2 = sqrt (2);
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243 %! rt3 = sqrt (3);
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244 %! v = [0, pi/6, pi/4, pi/3, pi/2, pi/3, pi/4, pi/6, 0];
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245 %! x = [0, 1/2, rt2/2, rt3/2, 1, rt3/2, rt2/2, 1/2, 0];
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246 %! assert(all (abs (asin (x) - v) < sqrt (eps)));
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247 %!error asin ();
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248 %!error asin (1, 2);
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249 */
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250
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251 DEFUN (asinh, args, ,
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252 "-*- texinfo -*-\n\
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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 ();
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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, ,
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285 "-*- texinfo -*-\n\
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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 ();
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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, ,
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322 "-*- texinfo -*-\n\
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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 ();
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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 (ceil, args, ,
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355 "-*- texinfo -*-\n\
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356 @deftypefn {Mapping Function} {} ceil (@var{x})\n\
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357 Return the smallest integer not less than @var{x}. This is equivalent to\n\
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358 rounding towards positive infinity. If @var{x} is\n\
3321
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359 complex, return @code{ceil (real (@var{x})) + ceil (imag (@var{x})) * I}.\n\
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360 @example\n\
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361 @group\n\
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362 ceil ([-2.7, 2.7])\n\
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363 @result{} -2 3\n\
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364 @end group\n\
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365 @end example\n\
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366 @seealso{floor, round, fix}\n\
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367 @end deftypefn")
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368 {
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369 octave_value retval;
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370 if (args.length () == 1)
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371 retval = args(0).ceil ();
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372 else
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373 print_usage ();
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374
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375 return retval;
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376 }
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377
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378 /*
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379
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380 %% double precision
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381 %!assert(ceil ([2, 1.1, -1.1, -1]), [2, 2, -1, -1]);
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382
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383 %% compelx double precison
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384 %!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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385
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386 %% single precision
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387 %!assert(ceil (single([2, 1.1, -1.1, -1])), single([2, 2, -1, -1]));
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388
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389 %% compelx single preci
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390 %!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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391
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392 %!error ceil ();
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393 %!error ceil (1, 2);
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394
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395 */
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396
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397 DEFUN (conj, args, ,
3381
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diff changeset
398 "-*- texinfo -*-\n\
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399 @deftypefn {Mapping Function} {} conj (@var{z})\n\
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400 Return the complex conjugate of @var{z}, defined as\n\
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diff changeset
401 @tex\n\
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402 $\\bar{z} = x - iy$.\n\
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403 @end tex\n\
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404 @ifnottex\n\
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405 @code{conj (@var{z})} = @var{x} - @var{i}@var{y}.\n\
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406 @end ifnottex\n\
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diff changeset
407 @seealso{real, imag}\n\
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408 @end deftypefn")
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409 {
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410 octave_value retval;
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411 if (args.length () == 1)
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412 retval = args(0).conj ();
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413 else
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414 print_usage ();
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diff changeset
415
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416 return retval;
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417 }
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418
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419 /*
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420
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421 %!assert(conj (1), 1);
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422 %!assert(conj (i), -i)
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423 %!assert(conj (1+i), 1-i)
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424 %!assert(conj (1-i), 1+i)
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425 %!assert(conj ([-1, -i; -1+i, -1-i]), [-1, i; -1-i, -1+i]);
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426
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427 %!assert(conj (single(1)), single(1));
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428 %!assert(conj (single(i)), single(-i))
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429 %!assert(conj (single(1+i)), single(1-i))
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430 %!assert(conj (single(1-i)), single(1+i))
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431 %!assert(conj (single([-1, -i; -1+i, -1-i])), single([-1, i; -1-i, -1+i]));
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432
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433 %!error conj ();
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434 %!error conj (1, 2);
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diff changeset
435
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diff changeset
436 */
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437
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diff changeset
438 DEFUN (cos, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
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diff changeset
439 "-*- texinfo -*-\n\
3428
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diff changeset
440 @deftypefn {Mapping Function} {} cos (@var{x})\n\
9155
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diff changeset
441 Compute the cosine for each element of @var{x} in radians.\n\
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi
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diff changeset
442 @seealso{acos, cosd, cosh}\n\
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diff changeset
443 @end deftypefn")
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diff changeset
444 {
8c32f95c2639 convert mapper functions to new format
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diff changeset
445 octave_value retval;
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diff changeset
446 if (args.length () == 1)
9813
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447 retval = args(0).cos ();
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448 else
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diff changeset
449 print_usage ();
529
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diff changeset
450
7503
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451 return retval;
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452 }
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David Bateman <dbateman@free.fr>
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diff changeset
453
7815
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David Bateman <dbateman@free.fr>
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454 /*
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diff changeset
455
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diff changeset
456 %!test
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diff changeset
457 %! rt2 = sqrt (2);
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458 %! rt3 = sqrt (3);
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459 %! 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
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460 %! v = [1, rt3/2, rt2/2, 1/2, 0, -1/2, -rt2/2, -rt3/2, -1];
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461 %! assert(cos (x), v, sqrt (eps));
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David Bateman <dbateman@free.fr>
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diff changeset
462
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diff changeset
463 %!test
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464 %! rt2 = sqrt (2);
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465 %! rt3 = sqrt (3);
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466 %! 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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467 %! v = single([1, rt3/2, rt2/2, 1/2, 0, -1/2, -rt2/2, -rt3/2, -1]);
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diff changeset
468 %! assert(cos (x), v, sqrt (eps('single')));
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469
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470 %!error cos ();
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471 %!error cos (1, 2);
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472
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diff changeset
473 */
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474
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diff changeset
475 DEFUN (cosh, args, ,
3321
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jwe
parents: 3249
diff changeset
476 "-*- texinfo -*-\n\
3428
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diff changeset
477 @deftypefn {Mapping Function} {} cosh (@var{x})\n\
9155
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478 Compute the hyperbolic cosine for each element of @var{x}.\n\
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi
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diff changeset
479 @seealso{acosh, sinh, tanh}\n\
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diff changeset
480 @end deftypefn")
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diff changeset
481 {
8c32f95c2639 convert mapper functions to new format
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diff changeset
482 octave_value retval;
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diff changeset
483 if (args.length () == 1)
9813
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484 retval = args(0).cosh ();
7503
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diff changeset
485 else
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diff changeset
486 print_usage ();
529
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jwe
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diff changeset
487
7503
8c32f95c2639 convert mapper functions to new format
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diff changeset
488 return retval;
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diff changeset
489 }
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David Bateman <dbateman@free.fr>
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diff changeset
490
7815
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David Bateman <dbateman@free.fr>
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diff changeset
491 /*
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David Bateman <dbateman@free.fr>
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diff changeset
492
a41df65f3f00 Add some single precision test code and fix resulting bugs
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diff changeset
493 %!test
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diff changeset
494 %! x = [0, pi/2*i, pi*i, 3*pi/2*i];
a41df65f3f00 Add some single precision test code and fix resulting bugs
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diff changeset
495 %! v = [1, 0, -1, 0];
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diff changeset
496 %! assert(cosh (x), v, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff changeset
497
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David Bateman <dbateman@free.fr>
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diff changeset
498 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
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diff changeset
499 %! x = single([0, pi/2*i, pi*i, 3*pi/2*i]);
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diff changeset
500 %! v = single([1, 0, -1, 0]);
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diff changeset
501 %! assert(cosh (x), v, sqrt (eps ('single')));
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diff changeset
502
a41df65f3f00 Add some single precision test code and fix resulting bugs
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diff changeset
503 %!error cosh ();
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diff changeset
504 %!error cosh (1, 2);
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diff changeset
505
a41df65f3f00 Add some single precision test code and fix resulting bugs
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diff changeset
506 */
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David Bateman <dbateman@free.fr>
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diff changeset
507
7503
8c32f95c2639 convert mapper functions to new format
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diff changeset
508 DEFUN (erf, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
509 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
510 @deftypefn {Mapping Function} {} erf (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
511 Computes the error function,\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
512 @tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
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diff changeset
513 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
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diff changeset
514 {\\rm erf} (z) = {2 \\over \\sqrt{\\pi}}\\int_0^z e^{-t^2} dt\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
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diff changeset
515 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
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diff changeset
516 @end tex\n\
8517
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diff changeset
517 @ifnottex\n\
3321
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jwe
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diff changeset
518 \n\
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diff changeset
519 @example\n\
9155
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi
Rik <rdrider0-list@yahoo.com>
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diff changeset
520 @group\n\
3321
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diff changeset
521 z\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
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parents: 3249
diff changeset
522 /\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
523 erf (z) = (2/sqrt (pi)) | e^(-t^2) dt\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
524 /\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
525 t=0\n\
9155
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9154
diff changeset
526 @end group\n\
9153
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diff changeset
527 @end example\n\
8517
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sh@sh-laptop
parents: 8459
diff changeset
528 @end ifnottex\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5518
diff changeset
529 @seealso{erfc, erfinv}\n\
7503
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David Bateman <dbateman@free.fr>
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diff changeset
530 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
531 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
532 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
533 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
534 retval = args(0).erf ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
535 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
536 print_usage ();
624
1a7dea6fa26b [project @ 1994-08-17 16:19:40 by jwe]
jwe
parents: 529
diff changeset
537
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
538 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
539 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
540
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
541 /*
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
542
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
543 %!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
544 %! 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
545 %! assert (erf(a), erf(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
546
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff changeset
547 %!test
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David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
548 %! x=[0,.5,1];
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
549 %! v=[0, .520499877813047, .842700792949715];
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
550 %! 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));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
551
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
552 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
553 %! a = -1i*sqrt(single (-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
554 %! assert (erf(a), erf(real(a)));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
555
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
556 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
557 %! x=single ([0,.5,1]);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff changeset
558 %! v=single ([0, .520499877813047, .842700792949715]);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
559 %! 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));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
560
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
561 %% test/octave.test/arith/erf-2.m
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David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
562 %!error erf();
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David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
563
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
564 %% test/octave.test/arith/erf-3.m
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David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
565 %!error erf(1,2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
566
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
567
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
568
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
569 */
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
570
9835
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Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
571 DEFUN (erfinv, args, ,
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
572 "-*- texinfo -*-\n\
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
573 @deftypefn {Mapping Function} {} erfinv (@var{x})\n\
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
574 Computes the inverse error function, i.e. @var{y} such that\n\
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
575 @example\n\
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
576 erf(@var{y}) == @var{x}\n\
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
577 @end example\n\
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
578 @seealso{erfc, erf}\n\
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
579 @end deftypefn")
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
580 {
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
581 octave_value retval;
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
582 if (args.length () == 1)
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
583 retval = args(0).erfinv ();
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
584 else
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
585 print_usage ();
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
586
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
587 return retval;
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
588 }
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
589
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
590 /*
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
591 %% middle region
10049
44e889c67abe mappers.cc: Change test tolerance from 1e-16 to eps.
Ben Abbott <bpabbott@mac.com>
parents: 9835
diff changeset
592 %!assert (erf (erfinv ([-0.9 -0.3 0 0.4 0.8])), [-0.9 -0.3 0 0.4 0.8], eps)
9835
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
593 %!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)
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
594 %% tail region
10049
44e889c67abe mappers.cc: Change test tolerance from 1e-16 to eps.
Ben Abbott <bpabbott@mac.com>
parents: 9835
diff changeset
595 %!assert (erf (erfinv ([-0.999 -0.99 0.9999 0.99999])), [-0.999 -0.99 0.9999 0.99999], eps)
9835
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
596 %!assert (erf (erfinv (single ([-0.999 -0.99 0.9999 0.99999]))), single ([-0.999 -0.99 0.9999 0.99999]), 1e-8)
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
597 %% backward - loss of accuracy
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
598 %!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)
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
599 %!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)
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
600 %% exceptional
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
601 %!assert (erfinv ([-1, 1, 1.1, -2.1]), [-Inf, Inf, NaN, NaN])
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
602 %!error erfinv (1+2i)
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
603 */
1bb1ed717d2f implement built-in erfinv
Jaroslav Hajek <highegg@gmail.com>
parents: 9813
diff changeset
604
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
605 DEFUN (erfc, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
606 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
607 @deftypefn {Mapping Function} {} erfc (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
608 Computes the complementary error function,\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
609 @tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
610 $1 - {\\rm erf} (z)$.\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
611 @end tex\n\
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 8459
diff changeset
612 @ifnottex\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
613 @code{1 - erf (@var{z})}.\n\
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 8459
diff changeset
614 @end ifnottex\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5518
diff changeset
615 @seealso{erf, erfinv}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
616 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
617 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
618 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
619 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
620 retval = args(0).erfc ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
621 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
622 print_usage ();
624
1a7dea6fa26b [project @ 1994-08-17 16:19:40 by jwe]
jwe
parents: 529
diff changeset
623
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
624 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
625 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
626
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
627 /*
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
628
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
629 %!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
630 %! 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
631 %! assert (erfc(a), erfc(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
632
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
633 */
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
634
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
635 DEFUN (exp, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
636 "-*- texinfo -*-\n\
3373
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe]
jwe
parents: 3369
diff changeset
637 @deftypefn {Mapping Function} {} exp (@var{x})\n\
9141
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
638 Compute\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
639 @tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
640 $e^{x}$\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
641 @end tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
642 @ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
643 @code{e^x}\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
644 @end ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
645 for each element of @var{x}. To compute the matrix\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
646 exponential, see @ref{Linear Algebra}.\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
647 @seealso{log}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
648 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
649 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
650 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
651 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
652 retval = args(0).exp ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
653 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
654 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
655
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
656 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
657 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
658
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
659 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
660
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
661 %!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
662 %!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
663 %!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
664 %!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
665
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
666 %!error exp ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
667 %!error exp (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
668
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
669 %!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
670 %!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
671
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
672 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
673
7638
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
674 DEFUN (expm1, args, ,
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
675 "-*- texinfo -*-\n\
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
676 @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
677 Compute\n\
9141
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
678 @tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
679 $ e^{x} - 1 $\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
680 @end tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
681 @ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
682 @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
683 @end ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
684 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
685 @seealso{exp}\n\
7638
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
686 @end deftypefn")
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
687 {
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
688 octave_value retval;
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
689 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
690 retval = args(0).expm1 ();
7638
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
691 else
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
692 print_usage ();
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
693
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
694 return retval;
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
695 }
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
696
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
697 DEFUN (finite, args, ,
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
698 "-*- texinfo -*-\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
699 @deftypefn {Mapping Function} {} finite (@var{x})\n\
3600
c11d138d654a [project @ 2000-02-24 03:55:32 by jwe]
jwe
parents: 3586
diff changeset
700 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
701 otherwise. For example,\n\
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
702 \n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
703 @example\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
704 @group\n\
5016
bdbee5282954 [project @ 2004-09-22 02:50:35 by jwe]
jwe
parents: 4968
diff changeset
705 finite ([13, Inf, NA, NaN])\n\
bdbee5282954 [project @ 2004-09-22 02:50:35 by jwe]
jwe
parents: 4968
diff changeset
706 @result{} [ 1, 0, 0, 0 ]\n\
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
707 @end group\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
708 @end example\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
709 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
710 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
711 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
712 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
713 retval = args(0).finite ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
714 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
715 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
716
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
717 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
718 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
719
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
720 /*
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
721
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
722 %!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
723 %!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
724 %!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
725
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
726 %!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
727 %!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
728 %!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
729
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
730 */
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
731
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
732 DEFUN (fix, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
733 "-*- texinfo -*-\n\
3373
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe]
jwe
parents: 3369
diff changeset
734 @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
735 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
736 is equivalent to rounding towards zero. If @var{x} is complex, return\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
737 @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
738 @example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
739 @group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
740 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
741 @result{} -2 2\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
742 @end group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
743 @end example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
744 @seealso{ceil, floor, round}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
745 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
746 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
747 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
748 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
749 retval = args(0).fix ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
750 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
751 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
752
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
753 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
754 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
755
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
756 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
757
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
758 %!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
759 %!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
760 %!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
761 %!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
762
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
763 %!error fix ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
764 %!error fix (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
765
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
766 */
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
767
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
768 DEFUN (floor, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
769 "-*- texinfo -*-\n\
3373
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe]
jwe
parents: 3369
diff changeset
770 @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
771 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
772 rounding towards negative infinity. If @var{x} is\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
773 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
774 @example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
775 @group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
776 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
777 @result{} -3 2\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
778 @end group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
779 @end example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
780 @seealso{ceil, round, fix}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
781 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
782 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
783 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
784 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
785 retval = args(0).floor ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
786 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
787 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
788
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
789 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
790 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
791
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
792 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
793
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
794 %!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
795 %!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
796 %!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
797 %!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
798
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
799 %!error floor ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
800 %!error floor (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
801
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
802 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
803
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
804 DEFUN (gamma, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
805 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
806 @deftypefn {Mapping Function} {} gamma (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
807 Computes the Gamma function,\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
808 @tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
809 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
810 \\Gamma (z) = \\int_0^\\infty t^{z-1} e^{-t} dt.\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
811 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
812 @end tex\n\
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 8459
diff changeset
813 @ifnottex\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
814 \n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
815 @example\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
816 @group\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
817 infinity\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
818 /\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
819 gamma (z) = | t^(z-1) exp (-t) dt.\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
820 /\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
821 t=0\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
822 @end group\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
823 @end example\n\
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 8459
diff changeset
824 @end ifnottex\n\
8286
6f2d95255911 fix @seealso references to point to existing anchors
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8084
diff changeset
825 @seealso{gammainc, lgamma}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
826 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
827 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
828 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
829 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
830 retval = args(0).gamma ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
831 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
832 print_usage ();
624
1a7dea6fa26b [project @ 1994-08-17 16:19:40 by jwe]
jwe
parents: 529
diff changeset
833
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
834 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
835 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
836
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
837 /*
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
838
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
839 %!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
840 %! 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
841 %! 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
842
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
843 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
844 %! 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
845 %! 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
846 %! 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
847
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
848 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
849 %! 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
850 %! 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
851
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
852 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
853 %! 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
854 %! 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
855 %! 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
856
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
857 %!error gamma();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
858 %!error gamma(1,2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
859
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
860 */
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
861
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
862 DEFUN (imag, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
863 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
864 @deftypefn {Mapping Function} {} imag (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
865 Return the imaginary part of @var{z} as a real number.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5518
diff changeset
866 @seealso{real, conj}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
867 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
868 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
869 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
870 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
871 retval = args(0).imag ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
872 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
873 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
874
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
875 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
876 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
877
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
878 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
879
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
880 %!assert(imag (1), 0);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
881 %!assert(imag (i), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
882 %!assert(imag (1+i), 1);
8459
d17874a6f161 improve indexing of diagonal & permutation matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 8442
diff changeset
883 %!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
884
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
885 %!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
886 %!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
887 %!assert(imag (single(1+i)), single(1));
8459
d17874a6f161 improve indexing of diagonal & permutation matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 8442
diff changeset
888 %!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
889
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
890 %!error imag ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
891 %!error imag (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
892
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
893 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
894
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
895 DEFUNX ("isalnum", Fisalnum, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
896 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
897 @deftypefn {Mapping Function} {} isalnum (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
898 Return 1 for characters that are letters or digits (@code{isalpha\n\
4165
e05de825dbd6 [project @ 2002-11-11 23:25:48 by jwe]
jwe
parents: 4100
diff changeset
899 (@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
900 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
901 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
902 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
903 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
904 retval = args(0).xisalnum ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
905 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
906 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
907
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
908 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
909 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
910
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
911 DEFUNX ("isalpha", Fisalpha, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
912 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
913 @deftypefn {Mapping Function} {} isalpha (@var{s})\n\
4168
20e641883610 [project @ 2002-11-12 02:56:54 by jwe]
jwe
parents: 4165
diff changeset
914 @deftypefnx {Mapping Function} {} isletter (@var{s})\n\
4165
e05de825dbd6 [project @ 2002-11-11 23:25:48 by jwe]
jwe
parents: 4100
diff changeset
915 Return true for characters that are letters (@code{isupper (@var{s})}\n\
e05de825dbd6 [project @ 2002-11-11 23:25:48 by jwe]
jwe
parents: 4100
diff changeset
916 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
917 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
918 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
919 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
920 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
921 retval = args(0).xisalpha ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
922 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
923 print_usage ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
924
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
925 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
926 }
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
927
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
928 DEFUNX ("isascii", Fisascii, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
929 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
930 @deftypefn {Mapping Function} {} isascii (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
931 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
932 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
933 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
934 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
935 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
936 retval = args(0).xisascii ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
937 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
938 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
939
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
940 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
941 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
942
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
943 DEFUNX ("iscntrl", Fiscntrl, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
944 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
945 @deftypefn {Mapping Function} {} iscntrl (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
946 Return 1 for control characters.\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
947 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
948 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
949 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
950 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
951 retval = args(0).xiscntrl ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
952 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
953 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
954
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
955 return retval;
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
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
958 DEFUNX ("isdigit", Fisdigit, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
959 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
960 @deftypefn {Mapping Function} {} isdigit (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
961 Return 1 for characters that are decimal digits.\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
962 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
963 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
964 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
965 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
966 retval = args(0).xisdigit ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
967 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
968 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
969
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
970 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
971 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
972
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
973 DEFUN (isinf, args, ,
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
974 "-*- texinfo -*-\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
975 @deftypefn {Mapping Function} {} isinf (@var{x})\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
976 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>
parents: 8920
diff changeset
977 otherwise. For example,\n\
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
978 \n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
979 @example\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
980 @group\n\
4025
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
981 isinf ([13, Inf, NA, NaN])\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
982 @result{} [ 0, 1, 0, 0 ]\n\
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
983 @end group\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
984 @end example\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
985 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
986 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
987 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
988 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
989 retval = args(0).isinf ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
990 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
991 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
992
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
993 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
994 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
995
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
996 /*
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
997
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
998 %!assert(isinf (Inf));
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
999 %!assert(!isinf (NaN));
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1000 %!assert(!(isinf (NA)));
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1001 %!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>
parents: 7667
diff changeset
1002 %!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
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1003
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1004 %!assert(isinf (single(Inf)));
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1005 %!assert(!(isinf (single(NaN))));
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1006 %!assert(!(isinf (single(NA))));
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1007 %!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>
parents: 7667
diff changeset
1008 %!assert(isinf(single([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
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1009
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1010 */
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1011
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1012 DEFUNX ("isgraph", Fisgraph, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1013 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1014 @deftypefn {Mapping Function} {} isgraph (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1015 Return 1 for printable characters (but not the space character).\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1016 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1017 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1018 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1019 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1020 retval = args(0).xisgraph ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1021 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1022 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1023
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1024 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1025 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1026
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1027 DEFUNX ("islower", Fislower, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1028 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1029 @deftypefn {Mapping Function} {} islower (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1030 Return 1 for characters that are lower case letters.\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1031 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1032 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1033 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1034 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1035 retval = args(0).xislower ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1036 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1037 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
1038
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1039 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1040 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1041
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1042 DEFUN (isna, args, ,
4025
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1043 "-*- texinfo -*-\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1044 @deftypefn {Mapping Function} {} isna (@var{x})\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1045 Return 1 for elements of @var{x} that are NA (missing) values and zero\n\
5389
25c8956d2204 [project @ 2005-06-15 03:45:46 by jwe]
jwe
parents: 5307
diff changeset
1046 otherwise. For example,\n\
4025
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1047 \n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1048 @example\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1049 @group\n\
6218
c1b66b74937d [project @ 2006-12-27 17:43:50 by jwe]
jwe
parents: 6206
diff changeset
1050 isna ([13, Inf, NA, NaN])\n\
4025
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1051 @result{} [ 0, 0, 1, 0 ]\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1052 @end group\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1053 @end example\n\
9308
f2bf62f62286 Update documentation for NA and isna functions
Rik <rdrider0-list@yahoo.com>
parents: 9209
diff changeset
1054 @seealso{isnan}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1055 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1056 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1057 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1058 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1059 retval = args(0).isna ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1060 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1061 print_usage ();
4025
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1062
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1063 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1064 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1065
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1066 /*
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1067
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1068 %!assert(!(isna (Inf)));
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1069 %!assert(!isna (NaN));
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1070 %!assert(isna (NA));
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1071 %!assert(isna (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
1072 %!assert(isna([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
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1073
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1074 %!assert(!(isna (single(Inf))));
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1075 %!assert(!isna (single(NaN)));
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1076 %!assert(isna (single(NA)));
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1077 %!assert(isna (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
1078 %!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
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1079
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1080 */
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1081
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1082 DEFUN (isnan, args, ,
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1083 "-*- texinfo -*-\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1084 @deftypefn {Mapping Function} {} isnan (@var{x})\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1085 Return 1 for elements of @var{x} that are NaN values and zero\n\
5389
25c8956d2204 [project @ 2005-06-15 03:45:46 by jwe]
jwe
parents: 5307
diff changeset
1086 otherwise. NA values are also considered NaN values. For example,\n\
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1087 \n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1088 @example\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1089 @group\n\
4025
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1090 isnan ([13, Inf, NA, NaN])\n\
5389
25c8956d2204 [project @ 2005-06-15 03:45:46 by jwe]
jwe
parents: 5307
diff changeset
1091 @result{} [ 0, 0, 1, 1 ]\n\
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1092 @end group\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1093 @end example\n\
9308
f2bf62f62286 Update documentation for NA and isna functions
Rik <rdrider0-list@yahoo.com>
parents: 9209
diff changeset
1094 @seealso{isna}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1095 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1096 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1097 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1098 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1099 retval = args(0).isnan ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1100 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1101 print_usage ();
624
1a7dea6fa26b [project @ 1994-08-17 16:19:40 by jwe]
jwe
parents: 529
diff changeset
1102
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1103 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1104 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1105
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1106 /*
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1107
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1108 %!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
1109 %!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
1110 %!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
1111 %!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
1112 %!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
1113
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1114 %!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
1115 %!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
1116 %!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
1117 %!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
1118 %!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
1119
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1120 */
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1121
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1122 DEFUNX ("isprint", Fisprint, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1123 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1124 @deftypefn {Mapping Function} {} isprint (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1125 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
1126 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1127 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1128 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1129 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1130 retval = args(0).xisprint ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1131 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1132 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
1133
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1134 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1135 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1136
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1137 DEFUNX ("ispunct", Fispunct, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1138 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1139 @deftypefn {Mapping Function} {} ispunct (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1140 Return 1 for punctuation characters.\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1141 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1142 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1143 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1144 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1145 retval = args(0).xispunct ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1146 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1147 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
1148
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1149 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1150 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1151
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1152 DEFUNX ("isspace", Fisspace, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1153 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1154 @deftypefn {Mapping Function} {} isspace (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1155 Return 1 for whitespace characters (space, formfeed, newline,\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1156 carriage return, tab, and vertical tab).\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1157 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1158 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1159 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1160 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1161 retval = args(0).xisspace ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1162 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1163 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
1164
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1165 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1166 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1167
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1168 DEFUNX ("isupper", Fisupper, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1169 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1170 @deftypefn {Mapping Function} {} isupper (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1171 Return 1 for upper case letters.\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1172 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1173 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1174 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1175 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1176 retval = args(0).xisupper ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1177 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1178 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
1179
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1180 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1181 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1182
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1183 DEFUNX ("isxdigit", Fisxdigit, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1184 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1185 @deftypefn {Mapping Function} {} isxdigit (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1186 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
1187 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1188 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1189 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1190 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1191 retval = args(0).xisxdigit ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1192 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1193 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
1194
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1195 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1196 }
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 DEFUN (lgamma, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1199 "-*- texinfo -*-\n\
5518
a9bd6c31751f [project @ 2005-10-29 04:26:38 by jwe]
jwe
parents: 5418
diff changeset
1200 @deftypefn {Mapping Function} {} lgamma (@var{x})\n\
a9bd6c31751f [project @ 2005-10-29 04:26:38 by jwe]
jwe
parents: 5418
diff changeset
1201 @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
1202 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
1203 @seealso{gamma, gammainc}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1204 @end deftypefn")
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 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1207 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1208 retval = args(0).lgamma ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1209 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1210 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1211
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1212 return retval;
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
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
1215 /*
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
1216
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
1217 %!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
1218 %! 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
1219 %! 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
1220
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1221 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1222 %! 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
1223 %! 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
1224 %! 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
1225
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1226 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1227 %! 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
1228 %! 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
1229
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1230 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1231 %! 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
1232 %! 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
1233 %! 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
1234
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1235 %!error lgamma();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1236 %!error lgamma(1,2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1237
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
1238 */
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
1239
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1240 DEFUN (log, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1241 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1242 @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
1243 Compute the natural logarithm,\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1244 @tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1245 $\\ln{(x)},$\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1246 @end tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1247 @ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1248 @code{ln (@var{x})},\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1249 @end ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1250 for each element of @var{x}. To compute the\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1251 matrix logarithm, see @ref{Linear Algebra}.\n\
9141
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1252 @seealso{exp, log1p, log2, log10, logspace}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1253 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1254 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1255 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1256 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1257 retval = args(0).log ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1258 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1259 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1260
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1261 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1262 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1263
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1264 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1265
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1266 %!assert(log ([1, e, e^2]), [0, 1, 2], sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1267 %!assert(log ([-0.5, -1.5, -2.5]), log([0.5, 1.5, 2.5]) + pi*1i, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1268
8084
46aa04055325 Use eps(single) as tolerance for single precesion test.
Ben Abbott <bpabbott@mac.com>
parents: 8067
diff changeset
1269 %!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
1270 %!assert(log (single([-0.5, -1.5, -2.5])), single(log([0.5, 1.5, 2.5]) + pi*1i), 4*eps('single'));
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1271
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1272 %!error log ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1273 %!error log (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1274
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1275 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1276
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1277 DEFUN (log10, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1278 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1279 @deftypefn {Mapping Function} {} log10 (@var{x})\n\
9141
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1280 Compute the base-10 logarithm of each element of @var{x}.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5518
diff changeset
1281 @seealso{log, log2, logspace, exp}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1282 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1283 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1284 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1285 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1286 retval = args(0).log10 ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1287 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1288 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1289
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1290 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1291 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1292
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1293 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1294
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1295 %!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>
parents: 7814
diff changeset
1296 %!assert(log10 (single([0.01, 0.1, 1, 10, 100])), single([-2, -1, 0, 1, 2]), sqrt (eps ('single')));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1297
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1298 %!error log10 ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1299 %!error log10 (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1300
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1301 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1302
7638
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1303 DEFUN (log1p, args, ,
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1304 "-*- texinfo -*-\n\
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1305 @deftypefn {Mapping Function} {} log1p (@var{x})\n\
9141
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1306 Compute\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1307 @tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1308 $\\ln{(1 + x)}$\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1309 @end tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1310 @ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1311 @code{log (1 + @var{x})}\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1312 @end ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1313 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
1314 @seealso{log, exp, expm1}\n\
7638
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1315 @end deftypefn")
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1316 {
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1317 octave_value retval;
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1318 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1319 retval = args(0).log1p ();
7638
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1320 else
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1321 print_usage ();
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1322
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1323 return retval;
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1324 }
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1325
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1326 DEFUN (real, args, ,
3381
69b167451491 [project @ 1999-12-15 20:48:10 by jwe]
jwe
parents: 3373
diff changeset
1327 "-*- texinfo -*-\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1328 @deftypefn {Mapping Function} {} real (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1329 Return the real part of @var{z}.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5518
diff changeset
1330 @seealso{imag, conj}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1331 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1332 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1333 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1334 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1335 retval = args(0).real ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1336 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1337 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1338
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1339 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1340 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1341
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1342 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1343
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1344 %!assert(real (1), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1345 %!assert(real (i), 0);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1346 %!assert(real (1+i), 1);
8459
d17874a6f161 improve indexing of diagonal & permutation matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 8442
diff changeset
1347 %!assert(real ([1, i; i, 1]), full (eye (2)));
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1348
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1349 %!assert(real (single(1)), single(1));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1350 %!assert(real (single(i)), single(0));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1351 %!assert(real (single(1+i)), single(1));
8459
d17874a6f161 improve indexing of diagonal & permutation matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 8442
diff changeset
1352 %!assert(real (single([1, i; i, 1])), 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
1353
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1354 %!error real ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1355 %!error real (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1356
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1357 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1358
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1359 DEFUN (round, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1360 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1361 @deftypefn {Mapping Function} {} round (@var{x})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1362 Return the integer nearest to @var{x}. If @var{x} is complex, return\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1363 @code{round (real (@var{x})) + round (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
1364 @example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1365 @group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1366 round ([-2.7, 2.7])\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1367 @result{} -3 3\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1368 @end group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1369 @end example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1370 @seealso{ceil, floor, fix}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1371 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1372 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1373 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1374 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1375 retval = args(0).round ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1376 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1377 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1378
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1379 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1380 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1381
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1382 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1383
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1384 %!assert(round (1), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1385 %!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
1386 %!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
1387 %!assert(round (i), i);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1388 %!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
1389 %!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
1390 %!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: 7814
diff changeset
1391
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1392 %!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
1393 %!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
1394 %!assert(round (single(5.5)), single(6));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1395 %!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
1396 %!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
1397 %!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
1398 %!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
1399
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1400 %!error round ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1401 %!error round (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1402
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1403 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1404
7636
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1405 DEFUN (roundb, args, ,
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1406 "-*- texinfo -*-\n\
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1407 @deftypefn {Mapping Function} {} roundb (@var{x})\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
1408 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
1409 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
1410 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
1411 @seealso{round}\n\
7636
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1412 @end deftypefn")
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1413 {
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1414 octave_value retval;
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1415 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1416 retval = args(0).roundb ();
7636
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1417 else
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1418 print_usage ();
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1419
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1420 return retval;
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1421 }
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1422
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1423 DEFUN (sign, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1424 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1425 @deftypefn {Mapping Function} {} sign (@var{x})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1426 Compute the @dfn{signum} function, which is defined as\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1427 @tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1428 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1429 {\\rm sign} (@var{x}) = \\cases{1,&$x>0$;\\cr 0,&$x=0$;\\cr -1,&$x<0$.\\cr}\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1430 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1431 @end tex\n\
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 8459
diff changeset
1432 @ifnottex\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1433 \n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1434 @example\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
1435 @group\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1436 -1, x < 0;\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1437 sign (x) = 0, x = 0;\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1438 1, x > 0.\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
1439 @end group\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1440 @end example\n\
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 8459
diff changeset
1441 @end ifnottex\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1442 \n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1443 For complex arguments, @code{sign} returns @code{x ./ abs (@var{x})}.\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1444 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1445 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1446 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1447 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1448 retval = args(0).signum ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1449 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1450 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1451
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1452 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1453 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1454
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1455 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1456
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1457 %!assert(sign (-2) , -1);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1458 %!assert(sign (3), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1459 %!assert(sign (0), 0);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1460 %!assert(sign ([1, -pi; e, 0]), [1, -1; 1, 0]);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1461
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1462 %!assert(sign (single(-2)) , single(-1));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1463 %!assert(sign (single(3)), single(1));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1464 %!assert(sign (single(0)), single(0));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1465 %!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: 7814
diff changeset
1466
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1467 %!error sign ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1468 %!error sign (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1469
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1470 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1471
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1472 DEFUN (sin, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1473 "-*- texinfo -*-\n\
3428
5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe]
jwe
parents: 3411
diff changeset
1474 @deftypefn {Mapping Function} {} sin (@var{x})\n\
9155
ad20b967e1c9 Update section 17.3 (Trigonometry) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9154
diff changeset
1475 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: 9154
diff changeset
1476 @seealso{asin, sind, sinh}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1477 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1478 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1479 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1480 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1481 retval = args(0).sin ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1482 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1483 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1484
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1485 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1486 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1487
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1488 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1489
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1490 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1491 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1492 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1493 %! 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: 7814
diff changeset
1494 %! 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
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1495 %! assert(sin (x), v, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1496
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1497 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1498 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1499 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1500 %! 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
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1501 %! 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
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1502 %! assert(sin (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
1503
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1504 %!error sin ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1505 %!error sin (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1506
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1507 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1508
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1509 DEFUN (sinh, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1510 "-*- texinfo -*-\n\
3428
5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe]
jwe
parents: 3411
diff changeset
1511 @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
1512 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
1513 @seealso{asinh, cosh, tanh}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1514 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1515 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1516 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1517 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1518 retval = args(0).sinh ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1519 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1520 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1521
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1522 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1523 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1524
7815
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: 7814
diff changeset
1526
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1527 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1528 %! 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: 7814
diff changeset
1529 %! v = [0, i, 0, -i];
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1530 %! 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
1531
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1532 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1533 %! 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
1534 %! v = single([0, i, 0, -i]);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1535 %! assert(sinh (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
1536
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1537 %!error sinh ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1538 %!error sinh (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1539
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1540 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1541
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1542 DEFUN (sqrt, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1543 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1544 @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
1545 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
1546 a complex result is returned. To compute the matrix square root, see\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1547 @ref{Linear Algebra}.\n\
9141
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1548 @seealso{realsqrt}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1549 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1550 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1551 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1552 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1553 retval = args(0).sqrt ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1554 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1555 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1556
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1557 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1558 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1559
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1560 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1561
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1562 %!assert(sqrt (4), 2)
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1563 %!assert(sqrt (-1), i)
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1564 %!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: 7814
diff changeset
1565 %!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: 7814
diff changeset
1566
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1567 %!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
1568 %!assert(sqrt (single(-1)), single(i))
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1569 %!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: 7814
diff changeset
1570 %!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
1571
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1572 %!error sqrt ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1573 %!error sqrt (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1574
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1575 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1576
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1577 DEFUN (tan, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1578 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1579 @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
1580 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
1581 @seealso{atan, tand, tanh}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1582 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1583 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1584 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1585 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1586 retval = args(0).tan ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1587 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1588 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1589
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1590 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1591 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1592
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1593 /*
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 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1596 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1597 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1598 %! 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
1599 %! 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: 7814
diff changeset
1600 %! 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
1601
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1602 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1603 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1604 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1605 %! 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: 7814
diff changeset
1606 %! 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: 7814
diff changeset
1607 %! 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
1608
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1609 %!error tan ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1610 %!error tan (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1611
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1612 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1613
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1614 DEFUN (tanh, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1615 "-*- texinfo -*-\n\
3428
5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe]
jwe
parents: 3411
diff changeset
1616 @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
1617 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
1618 @seealso{atanh, sinh, cosh}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1619 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1620 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1621 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1622 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1623 retval = args(0).tanh ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1624 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1625 print_usage ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1626
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1627 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1628 }
1562
1cff14ab83a4 [project @ 1995-10-12 11:02:40 by jwe]
jwe
parents: 1384
diff changeset
1629
7815
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
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1632 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1633 %! x = [0, pi*i];
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1634 %! v = [0, 0];
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1635 %! assert(tanh (x), v, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1636
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1637 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1638 %! x = single([0, pi*i]);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1639 %! v = single([0, 0]);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1640 %! assert(tanh (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
1641
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1642 %!error tanh ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1643 %!error tanh (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1644
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1645 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1646
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1647 DEFUNX ("toascii", Ftoascii, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1648 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1649 @deftypefn {Mapping Function} {} toascii (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1650 Return ASCII representation of @var{s} in a matrix. For example,\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1651 \n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1652 @example\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1653 @group\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1654 toascii (\"ASCII\")\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1655 @result{} [ 65, 83, 67, 73, 73 ]\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1656 @end group\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1657 \n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1658 @end example\n\
8442
502e58a0d44f Fix docstrings, add examples, references and tests to string functions
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8387
diff changeset
1659 @seealso{char}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1660 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1661 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1662 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1663 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1664 retval = args(0).xtoascii ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1665 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1666 print_usage ();
2267
4028b7c79927 [project @ 1996-05-24 00:39:30 by jwe]
jwe
parents: 2190
diff changeset
1667
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1668 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1669 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1670
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1671 DEFUNX ("tolower", Ftolower, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1672 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1673 @deftypefn {Mapping Function} {} tolower (@var{s})\n\
8387
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1674 @deftypefnx {Mapping Function} {} lower (@var{s})\n\
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1675 Return a copy of the string or cell string @var{s}, with each upper-case\n\
9209
923c7cb7f13f Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction.
Rik <rdrider0-list@yahoo.com>
parents: 9167
diff changeset
1676 character replaced by the corresponding lower-case one; non-alphabetic\n\
8387
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1677 characters are left unchanged. For example,\n\
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1678 \n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1679 @example\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
1680 @group\n\
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1681 tolower (\"MiXeD cAsE 123\")\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1682 @result{} \"mixed case 123\"\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
1683 @end group\n\
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1684 @end example\n\
8442
502e58a0d44f Fix docstrings, add examples, references and tests to string functions
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8387
diff changeset
1685 @seealso{toupper}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1686 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1687 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1688 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1689 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1690 retval = args(0).xtolower ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1691 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1692 print_usage ();
2267
4028b7c79927 [project @ 1996-05-24 00:39:30 by jwe]
jwe
parents: 2190
diff changeset
1693
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1694 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1695 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1696
8387
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1697 DEFALIAS (lower, tolower);
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1698
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1699 /*
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1700
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1701 %!error <Invalid call to tolower.*> tolower();
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1702 %!error <Invalid call to tolower.*> lower();
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1703 %!assert(tolower("OCTAVE"), "octave");
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1704 %!assert(tolower("123OCTave!_&"), "123octave!_&");
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1705 %!assert(tolower({"ABC", "DEF", {"GHI", {"JKL"}}}), {"abc", "def", {"ghi", {"jkl"}}});
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1706 %!assert(tolower(["ABC"; "DEF"]), ["abc"; "def"]);
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1707 %!assert(tolower({["ABC"; "DEF"]}), {["abc";"def"]});
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1708 %!assert(tolower(68), "d");
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1709 %!assert(tolower({[68, 68; 68, 68]}), {["dd";"dd"]});
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1710 %!test
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1711 %! a(3,3,3,3) = "D";
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1712 %! assert(tolower(a)(3,3,3,3), "d");
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1713
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1714 */
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1715
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1716
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1717 DEFUNX ("toupper", Ftoupper, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1718 "-*- texinfo -*-\n\
3368
a4cd1e9d9962 [project @ 1999-11-20 17:22:48 by jwe]
jwe
parents: 3362
diff changeset
1719 @deftypefn {Built-in Function} {} toupper (@var{s})\n\
8387
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1720 @deftypefnx {Built-in Function} {} upper (@var{s})\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
1721 Return a copy of the string or cell string @var{s}, with each lower-case\n\
9209
923c7cb7f13f Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction.
Rik <rdrider0-list@yahoo.com>
parents: 9167
diff changeset
1722 character replaced by the corresponding upper-case one; non-alphabetic\n\
8387
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1723 characters are left unchanged. For example,\n\
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1724 \n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1725 @example\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1726 @group\n\
3552
41daa489833a [project @ 2000-02-03 03:05:28 by jwe]
jwe
parents: 3458
diff changeset
1727 toupper (\"MiXeD cAsE 123\")\n\
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1728 @result{} \"MIXED CASE 123\"\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1729 @end group\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1730 @end example\n\
8442
502e58a0d44f Fix docstrings, add examples, references and tests to string functions
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8387
diff changeset
1731 @seealso{tolower}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1732 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1733 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1734 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1735 if (args.length () == 1)
9813
8fa32b527d9a improve & partially revert previous change
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
1736 retval = args(0).xtoupper ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1737 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1738 print_usage ();
3206
d0d2b69dc6c2 [project @ 1998-11-03 02:43:31 by jwe]
jwe
parents: 3156
diff changeset
1739
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1740 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1741 }
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1742
8387
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1743 DEFALIAS (upper, toupper);
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1744
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1745 /*
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1746
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1747 %!error <Invalid call to toupper.*> toupper();
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1748 %!error <Invalid call to toupper.*> upper();
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1749 %!assert(toupper("octave"), "OCTAVE");
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1750 %!assert(toupper("123OCTave!_&"), "123OCTAVE!_&");
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1751 %!assert(toupper({"abc", "def", {"ghi", {"jkl"}}}), {"ABC", "DEF", {"GHI", {"JKL"}}});
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1752 %!assert(toupper(["abc"; "def"]), ["ABC"; "DEF"]);
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1753 %!assert(toupper({["abc"; "def"]}), {["ABC";"DEF"]});
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1754 %!assert(toupper(100), "D");
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1755 %!assert(toupper({[100, 100; 100, 100]}), {["DD";"DD"]});
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1756 %!test
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1757 %! a(3,3,3,3) = "d";
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1758 %! assert(toupper(a)(3,3,3,3), "D");
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1759
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1760 */
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1761
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1762 DEFALIAS (gammaln, lgamma);
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1763
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1764 DEFALIAS (isfinite, finite);
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1765
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1766 /*
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1767 ;;; Local Variables: ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1768 ;;; mode: C++ ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1769 ;;; End: ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1770 */