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annotate src/mappers.cc @ 9153:5247e89688e1

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Eliminate most overfull errors when running texi2pdf for generating pdf documentation Use @smallexample when necessary to reduce font for long lines. Reword variables or phrases so that Tex can break them at a better spot.
author Rik <rdrider0-list@yahoo.com>
date Fri, 24 Apr 2009 12:29:01 -0700
parents c1fff751b5a8
children 761fc0d3d980
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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.
1
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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 @iftex\n\
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44 @tex\n\
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45 $|z| = \\sqrt{x^2 + y^2}$.\n\
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46 @end tex\n\
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47 @end iftex\n\
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48 @ifnottex\n\
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49 |@var{z}| = @code{sqrt (x^2 + y^2)}.\n\
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50 @end ifnottex\n\
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51 \n\
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52 For example,\n\
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53 \n\
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54 @example\n\
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55 @group\n\
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56 abs (3 + 4i)\n\
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57 @result{} 5\n\
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58 @end group\n\
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59 @end example\n\
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60 @end deftypefn")
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61 {
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62 octave_value retval;
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63 if (args.length () == 1)
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64 retval = args(0).abs ();
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65 else
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66 print_usage ();
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67
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68 return retval;
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69 }
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70
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71 /*
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72
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73 %!assert(abs (1), 1);
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74 %!assert(abs (-3.5), 3.5);
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75 %!assert(abs (3+4i), 5);
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76 %!assert(abs (3-4i), 5);
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77 %!assert(abs ([1.1, 3i; 3+4i, -3-4i]), [1.1, 3; 5, 5]);
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78
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79 %!assert(abs (single(1)), single(1));
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80 %!assert(abs (single(-3.5)), single(3.5));
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81 %!assert(abs (single(3+4i)), single(5));
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82 %!assert(abs (single(3-4i)), single(5));
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83 %!assert(abs (single([1.1, 3i; 3+4i, -3-4i])), single([1.1, 3; 5, 5]));
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84
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85 %!error abs ();
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86 %!error abs (1, 2);
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87
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88 */
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89
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90 DEFUN (acos, args, ,
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91 "-*- texinfo -*-\n\
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92 @deftypefn {Mapping Function} {} acos (@var{x})\n\
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93 Compute the inverse cosine of each element of @var{x}.\n\
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94 @end deftypefn")
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95 {
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96 octave_value retval;
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97 if (args.length () == 1)
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98 retval = args(0).acos ();
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99 else
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100 print_usage ();
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101
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102 return retval;
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103 }
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104
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105 /*
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106
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107 %!test
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108 %! rt2 = sqrt (2);
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109 %! rt3 = sqrt (3);
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110 %! v = [0, pi/6, pi/4, pi/3, pi/2, 2*pi/3, 3*pi/4, 5*pi/6, pi];
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111 %! x = [1, rt3/2, rt2/2, 1/2, 0, -1/2, -rt2/2, -rt3/2, -1];
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112 %! assert(acos (x), v, sqrt(eps));
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113
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114 %!test
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115 %! rt2 = sqrt (2);
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116 %! rt3 = sqrt (3);
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117 %! 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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118 %! x = single ([1, rt3/2, rt2/2, 1/2, 0, -1/2, -rt2/2, -rt3/2, -1]);
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119 %! assert(acos (x), v, sqrt(eps('single')));
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120
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121 %!error acos ();
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122 %!error acos (1, 2);
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123
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124 */
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125
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126 DEFUN (acosh, args, ,
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127 "-*- texinfo -*-\n\
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128 @deftypefn {Mapping Function} {} acosh (@var{x})\n\
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129 Compute the inverse hyperbolic cosine of each element of @var{x}.\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 @var{theta} = @code{atan2 (@var{y}, @var{x})}.\n\
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179 in radians. \n\
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180 \n\
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181 For example,\n\
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182 \n\
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183 @example\n\
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184 @group\n\
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185 arg (3 + 4i)\n\
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186 @result{} 0.92730\n\
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187 @end group\n\
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188 @end example\n\
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189 @end deftypefn")
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190 {
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191 octave_value retval;
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192 if (args.length () == 1)
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193 retval = args(0).arg ();
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194 else
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195 print_usage ();
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196
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197 return retval;
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198 }
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199
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200 /*
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201
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202 %!assert(arg (1), 0);
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203 %!assert(arg (i), pi/2);
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204 %!assert(arg (-1), pi);
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205 %!assert(arg (-i), -pi/2);
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206 %!assert(arg ([1, i; -1, -i]), [0, pi/2; pi, -pi/2]);
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207
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208 %!assert(arg (single(1)), single(0));
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209 %!assert(arg (single(i)), single(pi/2));
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210 %!assert(arg (single(-1)), single(pi));
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211 %!assert(arg (single(-i)), single(-pi/2));
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212 %!assert(arg (single([1, i; -1, -i])), single([0, pi/2; pi, -pi/2]), 2e1*eps('single'));
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213
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214 %!error arg ();
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215 %!error arg (1, 2);
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216
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217 */
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218
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219 DEFUN (asin, args, ,
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220 "-*- texinfo -*-\n\
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221 @deftypefn {Mapping Function} {} asin (@var{x})\n\
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222 Compute the inverse sine of each element of @var{x}.\n\
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223 @end deftypefn")
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224 {
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225 octave_value retval;
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226 if (args.length () == 1)
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227 retval = args(0).asin ();
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228 else
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229 print_usage ();
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230
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231 return retval;
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232 }
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233
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234 /*
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235 %!test
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236 %! rt2 = sqrt (2);
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237 %! rt3 = sqrt (3);
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238 %! v = [0, pi/6, pi/4, pi/3, pi/2, pi/3, pi/4, pi/6, 0];
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239 %! x = [0, 1/2, rt2/2, rt3/2, 1, rt3/2, rt2/2, 1/2, 0];
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240 %! assert(all (abs (asin (x) - v) < sqrt (eps)));
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241 %!error asin ();
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242 %!error asin (1, 2);
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243 */
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244
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245 DEFUN (asinh, args, ,
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246 "-*- texinfo -*-\n\
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247 @deftypefn {Mapping Function} {} asinh (@var{x})\n\
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248 Compute the inverse hyperbolic sine of each element of @var{x}.\n\
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249 @end deftypefn")
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250 {
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251 octave_value retval;
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252 if (args.length () == 1)
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253 retval = args(0).asinh ();
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254 else
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255 print_usage ();
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256
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257 return retval;
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258 }
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259
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260 /*
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261
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262 %!test
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263 %! v = [0, pi/2*i, 0, -pi/2*i];
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264 %! x = [0, i, 0, -i];
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265 %! assert(asinh (x), v, sqrt (eps));
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266
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267 %!test
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268 %! v = single([0, pi/2*i, 0, -pi/2*i]);
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269 %! x = single([0, i, 0, -i]);
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270 %! assert(asinh (x), v, sqrt (eps('single')));
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271
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272 %!error asinh ();
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273 %!error asinh (1, 2);
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274
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275 */
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276
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277 DEFUN (atan, args, ,
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278 "-*- texinfo -*-\n\
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279 @deftypefn {Mapping Function} {} atan (@var{x})\n\
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280 Compute the inverse tangent of each element of @var{x}.\n\
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281 @end deftypefn")
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282 {
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283 octave_value retval;
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284 if (args.length () == 1)
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285 retval = args(0).atan ();
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286 else
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287 print_usage ();
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288
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289 return retval;
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290 }
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291
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292 /*
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293
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294 %!test
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295 %! rt2 = sqrt (2);
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296 %! rt3 = sqrt (3);
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297 %! v = [0, pi/6, pi/4, pi/3, -pi/3, -pi/4, -pi/6, 0];
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298 %! x = [0, rt3/3, 1, rt3, -rt3, -1, -rt3/3, 0];
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299 %! assert(atan (x), v, sqrt (eps));
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300
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301 %!test
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302 %! rt2 = sqrt (2);
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303 %! rt3 = sqrt (3);
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304 %! v = single([0, pi/6, pi/4, pi/3, -pi/3, -pi/4, -pi/6, 0]);
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305 %! x = single([0, rt3/3, 1, rt3, -rt3, -1, -rt3/3, 0]);
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306 %! assert(atan (x), v, sqrt (eps('single')));
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307
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308 %!error atan ();
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309 %!error atan (1, 2);
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310
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311 */
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312
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313 DEFUN (atanh, args, ,
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314 "-*- texinfo -*-\n\
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315 @deftypefn {Mapping Function} {} atanh (@var{x})\n\
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316 Compute the inverse hyperbolic tangent of each element of @var{x}.\n\
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317 @end deftypefn")
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318 {
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319 octave_value retval;
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320 if (args.length () == 1)
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321 retval = args(0).atanh ();
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322 else
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323 print_usage ();
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324
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325 return retval;
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326 }
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327
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328 /*
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329
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330 %!test
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331 %! v = [0, 0];
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332 %! x = [0, 0];
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333 %! assert(atanh (x), v, sqrt (eps));
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334
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335 %!test
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336 %! v = single([0, 0]);
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337 %! x = single([0, 0]);
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338 %! assert(atanh (x), v, sqrt (eps('single')));
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339
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340 %!error atanh ();
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341 %!error atanh (1, 2);
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342
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343 */
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344
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345 DEFUN (ceil, args, ,
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346 "-*- texinfo -*-\n\
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347 @deftypefn {Mapping Function} {} ceil (@var{x})\n\
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348 Return the smallest integer not less than @var{x}. This is equivalent to\n\
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349 rounding towards positive infinity. If @var{x} is\n\
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350 complex, return @code{ceil (real (@var{x})) + ceil (imag (@var{x})) * I}.\n\
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351 @example\n\
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352 @group\n\
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353 ceil ([-2.7, 2.7])\n\
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354 @result{} -2 3\n\
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355 @end group\n\
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356 @end example\n\
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357 @seealso{floor, round, fix}\n\
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358 @end deftypefn")
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359 {
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360 octave_value retval;
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361 if (args.length () == 1)
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362 retval = args(0).ceil ();
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363 else
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364 print_usage ();
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365
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366 return retval;
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367 }
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368
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369 /*
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370
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371 %% double precision
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372 %!assert(ceil ([2, 1.1, -1.1, -1]), [2, 2, -1, -1]);
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373
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374 %% compelx double precison
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375 %!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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376
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377 %% single precision
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378 %!assert(ceil (single([2, 1.1, -1.1, -1])), single([2, 2, -1, -1]));
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379
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380 %% compelx single preci
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381 %!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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382
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383 %!error ceil ();
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384 %!error ceil (1, 2);
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385
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386 */
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387
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388 DEFUN (conj, args, ,
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389 "-*- texinfo -*-\n\
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390 @deftypefn {Mapping Function} {} conj (@var{z})\n\
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391 Return the complex conjugate of @var{z}, defined as\n\
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392 @iftex\n\
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393 @tex\n\
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394 $\\bar{z} = x - iy$.\n\
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395 @end tex\n\
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396 @end iftex\n\
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397 @ifnottex\n\
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398 @code{conj (@var{z})} = @var{x} - @var{i}@var{y}.\n\
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399 @end ifnottex\n\
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400 @seealso{real, imag}\n\
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401 @end deftypefn")
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402 {
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403 octave_value retval;
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404 if (args.length () == 1)
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405 retval = args(0).conj ();
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406 else
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407 print_usage ();
529
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diff changeset
408
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409 return retval;
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410 }
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411
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412 /*
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413
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414 %!assert(conj (1), 1);
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415 %!assert(conj (i), -i)
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416 %!assert(conj (1+i), 1-i)
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417 %!assert(conj (1-i), 1+i)
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418 %!assert(conj ([-1, -i; -1+i, -1-i]), [-1, i; -1-i, -1+i]);
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419
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420 %!assert(conj (single(1)), single(1));
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421 %!assert(conj (single(i)), single(-i))
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422 %!assert(conj (single(1+i)), single(1-i))
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423 %!assert(conj (single(1-i)), single(1+i))
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424 %!assert(conj (single([-1, -i; -1+i, -1-i])), single([-1, i; -1-i, -1+i]));
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425
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426 %!error conj ();
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427 %!error conj (1, 2);
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428
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429 */
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430
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431 DEFUN (cos, args, ,
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432 "-*- texinfo -*-\n\
3428
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433 @deftypefn {Mapping Function} {} cos (@var{x})\n\
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434 Compute the cosine of each element of @var{x}.\n\
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435 @end deftypefn")
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436 {
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diff changeset
437 octave_value retval;
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438 if (args.length () == 1)
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439 retval = args(0).cos ();
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440 else
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441 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
442
7503
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David Bateman <dbateman@free.fr>
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diff changeset
443 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
444 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
445
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
446 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
447
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
448 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
449 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
450 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
451 %! 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>
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diff changeset
452 %! v = [1, rt3/2, rt2/2, 1/2, 0, -1/2, -rt2/2, -rt3/2, -1];
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
453 %! assert(cos (x), v, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
454
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
455 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
456 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
457 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
458 %! 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
459 %! v = single([1, rt3/2, rt2/2, 1/2, 0, -1/2, -rt2/2, -rt3/2, -1]);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
460 %! assert(cos (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
461
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
462 %!error cos ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
463 %!error cos (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
464
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff changeset
465 */
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David Bateman <dbateman@free.fr>
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diff changeset
466
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David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
467 DEFUN (cosh, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
468 "-*- texinfo -*-\n\
3428
5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe]
jwe
parents: 3411
diff changeset
469 @deftypefn {Mapping Function} {} cosh (@var{x})\n\
5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe]
jwe
parents: 3411
diff changeset
470 Compute the hyperbolic cosine of each element of @var{x}.\n\
7503
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David Bateman <dbateman@free.fr>
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diff changeset
471 @end deftypefn")
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David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
472 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
473 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
474 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
475 retval = args(0).cosh ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
476 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
477 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
478
7503
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David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
479 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
480 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
481
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff changeset
482 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
483
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
484 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
485 %! 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
486 %! v = [1, 0, -1, 0];
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
487 %! assert(cosh (x), v, sqrt (eps));
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
488
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
489 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
490 %! 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
491 %! v = single([1, 0, -1, 0]);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
492 %! assert(cosh (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
493
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
494 %!error cosh ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
495 %!error cosh (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
496
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
497 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
498
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
499 DEFUN (erf, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
500 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
501 @deftypefn {Mapping Function} {} erf (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
502 Computes the error function,\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
503 @iftex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
504 @tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
505 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
506 {\\rm erf} (z) = {2 \\over \\sqrt{\\pi}}\\int_0^z e^{-t^2} dt\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
507 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
508 @end tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
509 @end iftex\n\
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
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parents: 8459
diff changeset
510 @ifnottex\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
511 \n\
9153
5247e89688e1 Eliminate most overfull errors when running texi2pdf for generating pdf documentation
Rik <rdrider0-list@yahoo.com>
parents: 9141
diff changeset
512 @example\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
513 z\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
514 /\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
515 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
516 /\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
517 t=0\n\
9153
5247e89688e1 Eliminate most overfull errors when running texi2pdf for generating pdf documentation
Rik <rdrider0-list@yahoo.com>
parents: 9141
diff changeset
518 @end example\n\
8517
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diff changeset
519 @end ifnottex\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5518
diff changeset
520 @seealso{erfc, erfinv}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
521 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
522 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
523 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
524 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
525 retval = args(0).erf ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
526 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
527 print_usage ();
624
1a7dea6fa26b [project @ 1994-08-17 16:19:40 by jwe]
jwe
parents: 529
diff changeset
528
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
529 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
530 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
531
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
532 /*
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
533
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
534 %!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
535 %! 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
536 %! 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
537
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
538 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
539 %! x=[0,.5,1];
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
540 %! v=[0, .520499877813047, .842700792949715];
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
541 %! 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
542
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
543 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
544 %! 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
545 %! 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
546
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
547 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
548 %! x=single ([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=single ([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-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
551
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
552 %% test/octave.test/arith/erf-2.m
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
553 %!error erf();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
554
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
555 %% test/octave.test/arith/erf-3.m
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
556 %!error erf(1,2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
557
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
558
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
559
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
560 */
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
561
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
562 DEFUN (erfc, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
563 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
564 @deftypefn {Mapping Function} {} erfc (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
565 Computes the complementary error function,\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
566 @iftex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
567 @tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
568 $1 - {\\rm erf} (z)$.\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
569 @end tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
570 @end iftex\n\
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 8459
diff changeset
571 @ifnottex\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
572 @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
573 @end ifnottex\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5518
diff changeset
574 @seealso{erf, erfinv}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
575 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
576 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
577 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
578 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
579 retval = args(0).erfc ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
580 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
581 print_usage ();
624
1a7dea6fa26b [project @ 1994-08-17 16:19:40 by jwe]
jwe
parents: 529
diff changeset
582
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
583 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
584 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
585
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
586 /*
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
587
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
588 %!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
589 %! 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
590 %! 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
591
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
592 */
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
593
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
594 DEFUN (exp, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
595 "-*- texinfo -*-\n\
3373
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe]
jwe
parents: 3369
diff changeset
596 @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
597 Compute\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
598 @iftex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
599 @tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
600 $e^{x}$\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
601 @end tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
602 @end iftex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
603 @ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
604 @code{e^x}\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
605 @end ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
606 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
607 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
608 @seealso{log}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
609 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
610 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
611 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
612 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
613 retval = args(0).exp ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
614 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
615 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
616
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
617 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
618 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
619
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
620 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
621
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
622 %!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
623 %!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
624 %!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
625 %!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
626
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
627 %!error exp ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
628 %!error exp (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
629
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
630 %!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
631 %!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
632
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
633 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
634
7638
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
635 DEFUN (expm1, args, ,
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
636 "-*- texinfo -*-\n\
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
637 @deftypefn {Mapping Function} {} expm1 (@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 @iftex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
640 @tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
641 $ e^{x} - 1 $\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
642 @end tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
643 @end iftex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
644 @ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
645 @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
646 @end ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
647 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
648 @seealso{exp}\n\
7638
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
649 @end deftypefn")
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
650 {
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
651 octave_value retval;
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
652 if (args.length () == 1)
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
653 retval = args(0).expm1 ();
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
654 else
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
655 print_usage ();
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
656
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
657 return retval;
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
658 }
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
659
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
660 DEFUN (finite, args, ,
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
661 "-*- texinfo -*-\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
662 @deftypefn {Mapping Function} {} finite (@var{x})\n\
3600
c11d138d654a [project @ 2000-02-24 03:55:32 by jwe]
jwe
parents: 3586
diff changeset
663 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
664 otherwise. For example,\n\
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
665 \n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
666 @example\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
667 @group\n\
5016
bdbee5282954 [project @ 2004-09-22 02:50:35 by jwe]
jwe
parents: 4968
diff changeset
668 finite ([13, Inf, NA, NaN])\n\
bdbee5282954 [project @ 2004-09-22 02:50:35 by jwe]
jwe
parents: 4968
diff changeset
669 @result{} [ 1, 0, 0, 0 ]\n\
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
670 @end group\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
671 @end example\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
672 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
673 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
674 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
675 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
676 retval = args(0).finite ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
677 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
678 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
679
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
680 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
681 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
682
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
683 /*
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
684
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
685 %!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
686 %!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
687 %!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
688
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
689 %!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
690 %!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
691 %!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
692
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
693 */
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
694
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
695 DEFUN (fix, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
696 "-*- texinfo -*-\n\
3373
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe]
jwe
parents: 3369
diff changeset
697 @deftypefn {Mapping Function} {} fix (@var{x})\n\
9141
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
698 Truncate fractional portion of @var{x} and return integer portion. This\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
699 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
700 @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
701 @example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
702 @group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
703 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
704 @result{} -2 2\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
705 @end group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
706 @end example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
707 @seealso{ceil, floor, round}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
708 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
709 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
710 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
711 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
712 retval = args(0).fix ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
713 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
714 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
715
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
716 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
717 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
718
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
719 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
720
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
721 %!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
722 %!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
723 %!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
724 %!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
725
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
726 %!error fix ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
727 %!error fix (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
728
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
729 */
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
730
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
731 DEFUN (floor, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
732 "-*- texinfo -*-\n\
3373
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe]
jwe
parents: 3369
diff changeset
733 @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
734 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
735 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
736 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
737 @example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
738 @group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
739 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
740 @result{} -3 2\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
741 @end group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
742 @end example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
743 @seealso{ceil, round, fix}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
744 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
745 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
746 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
747 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
748 retval = args(0).floor ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
749 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
750 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
751
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
752 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
753 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
754
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
755 /*
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 %!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
758 %!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
759 %!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
760 %!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
761
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
762 %!error floor ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
763 %!error floor (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
764
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 DEFUN (gamma, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
768 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
769 @deftypefn {Mapping Function} {} gamma (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
770 Computes the Gamma function,\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
771 @iftex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
772 @tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
773 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
774 \\Gamma (z) = \\int_0^\\infty t^{z-1} e^{-t} dt.\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
775 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
776 @end tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
777 @end iftex\n\
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 8459
diff changeset
778 @ifnottex\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
779 \n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
780 @example\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
781 @group\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
782 infinity\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
783 /\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
784 gamma (z) = | t^(z-1) exp (-t) dt.\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
785 /\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
786 t=0\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
787 @end group\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
788 @end example\n\
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 8459
diff changeset
789 @end ifnottex\n\
8286
6f2d95255911 fix @seealso references to point to existing anchors
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8084
diff changeset
790 @seealso{gammainc, lgamma}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
791 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
792 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
793 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
794 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
795 retval = args(0).gamma ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
796 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
797 print_usage ();
624
1a7dea6fa26b [project @ 1994-08-17 16:19:40 by jwe]
jwe
parents: 529
diff changeset
798
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
799 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
800 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
801
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
802 /*
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
803
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
804 %!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
805 %! 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
806 %! 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
807
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
808 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
809 %! 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
810 %! 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
811 %! 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
812
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
813 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
814 %! 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
815 %! 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
816
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
817 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
818 %! 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
819 %! 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
820 %! 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
821
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
822 %!error gamma();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
823 %!error gamma(1,2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
824
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
825 */
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
826
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
827 DEFUN (imag, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
828 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
829 @deftypefn {Mapping Function} {} imag (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
830 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
831 @seealso{real, conj}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
832 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
833 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
834 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
835 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
836 retval = args(0).imag ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
837 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
838 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
839
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
840 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
841 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
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 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
844
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
845 %!assert(imag (1), 0);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
846 %!assert(imag (i), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
847 %!assert(imag (1+i), 1);
8459
d17874a6f161 improve indexing of diagonal & permutation matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 8442
diff changeset
848 %!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
849
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
850 %!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
851 %!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
852 %!assert(imag (single(1+i)), single(1));
8459
d17874a6f161 improve indexing of diagonal & permutation matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 8442
diff changeset
853 %!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
854
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
855 %!error imag ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
856 %!error imag (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
857
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
858 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
859
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
860 DEFUNX ("isalnum", Fisalnum, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
861 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
862 @deftypefn {Mapping Function} {} isalnum (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
863 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
864 (@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
865 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
866 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
867 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
868 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
869 retval = args(0).xisalnum ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
870 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
871 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
872
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
873 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
874 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
875
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
876 DEFUNX ("isalpha", Fisalpha, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
877 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
878 @deftypefn {Mapping Function} {} isalpha (@var{s})\n\
4168
20e641883610 [project @ 2002-11-12 02:56:54 by jwe]
jwe
parents: 4165
diff changeset
879 @deftypefnx {Mapping Function} {} isletter (@var{s})\n\
4165
e05de825dbd6 [project @ 2002-11-11 23:25:48 by jwe]
jwe
parents: 4100
diff changeset
880 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
881 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
882 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
883 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
884 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
885 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
886 retval = args(0).xisalpha ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
887 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
888 print_usage ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
889
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
890 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
891 }
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
892
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
893 DEFUNX ("isascii", Fisascii, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
894 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
895 @deftypefn {Mapping Function} {} isascii (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
896 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
897 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
898 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
899 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
900 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
901 retval = args(0).xisascii ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
902 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
903 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
904
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
905 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
906 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
907
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
908 DEFUNX ("iscntrl", Fiscntrl, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
909 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
910 @deftypefn {Mapping Function} {} iscntrl (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
911 Return 1 for control characters.\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
912 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
913 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
914 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
915 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
916 retval = args(0).xiscntrl ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
917 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
918 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
919
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
920 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
921 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
922
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
923 DEFUNX ("isdigit", Fisdigit, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
924 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
925 @deftypefn {Mapping Function} {} isdigit (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
926 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
927 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
928 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
929 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
930 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
931 retval = args(0).xisdigit ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
932 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
933 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
934
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
935 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
936 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
937
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
938 DEFUN (isinf, args, ,
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
939 "-*- texinfo -*-\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
940 @deftypefn {Mapping Function} {} isinf (@var{x})\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
941 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
942 otherwise. For example,\n\
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
943 \n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
944 @example\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
945 @group\n\
4025
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
946 isinf ([13, Inf, NA, NaN])\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
947 @result{} [ 0, 1, 0, 0 ]\n\
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
948 @end group\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
949 @end example\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
950 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
951 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
952 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
953 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
954 retval = args(0).isinf ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
955 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
956 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
957
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
958 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
959 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
960
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
961 /*
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
962
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
963 %!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
964 %!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
965 %!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
966 %!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
967 %!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
968
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
969 %!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
970 %!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
971 %!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
972 %!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
973 %!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
974
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
975 */
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
976
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
977 DEFUNX ("isgraph", Fisgraph, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
978 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
979 @deftypefn {Mapping Function} {} isgraph (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
980 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
981 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
982 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
983 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
984 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
985 retval = args(0).xisgraph ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
986 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
987 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
988
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
989 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
990 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
991
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
992 DEFUNX ("islower", Fislower, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
993 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
994 @deftypefn {Mapping Function} {} islower (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
995 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
996 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
997 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
998 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
999 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1000 retval = args(0).xislower ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1001 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1002 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
1003
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1004 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1005 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1006
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1007 DEFUN (isna, args, ,
4025
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1008 "-*- texinfo -*-\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1009 @deftypefn {Mapping Function} {} isna (@var{x})\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1010 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
1011 otherwise. For example,\n\
4025
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1012 \n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1013 @example\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1014 @group\n\
6218
c1b66b74937d [project @ 2006-12-27 17:43:50 by jwe]
jwe
parents: 6206
diff changeset
1015 isna ([13, Inf, NA, NaN])\n\
4025
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1016 @result{} [ 0, 0, 1, 0 ]\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1017 @end group\n\
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1018 @end example\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1019 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1020 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1021 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1022 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1023 retval = args(0).isna ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1024 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1025 print_usage ();
4025
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1026
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1027 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1028 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1029
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1030 /*
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1031
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1032 %!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
1033 %!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
1034 %!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
1035 %!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
1036 %!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
1037
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1038 %!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
1039 %!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
1040 %!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
1041 %!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
1042 %!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
1043
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1044 */
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1045
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1046 DEFUN (isnan, args, ,
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1047 "-*- texinfo -*-\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1048 @deftypefn {Mapping Function} {} isnan (@var{x})\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1049 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
1050 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
1051 \n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1052 @example\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1053 @group\n\
4025
cfb762dc9259 [project @ 2002-08-09 06:32:15 by jwe]
jwe
parents: 3775
diff changeset
1054 isnan ([13, Inf, NA, NaN])\n\
5389
25c8956d2204 [project @ 2005-06-15 03:45:46 by jwe]
jwe
parents: 5307
diff changeset
1055 @result{} [ 0, 0, 1, 1 ]\n\
3369
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1056 @end group\n\
f37ca3017116 [project @ 1999-11-21 16:26:02 by jwe]
jwe
parents: 3368
diff changeset
1057 @end example\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1058 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1059 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1060 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1061 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1062 retval = args(0).isnan ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1063 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1064 print_usage ();
624
1a7dea6fa26b [project @ 1994-08-17 16:19:40 by jwe]
jwe
parents: 529
diff changeset
1065
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1066 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1067 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1068
7814
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1069 /*
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1070
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1071 %!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
1072 %!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
1073 %!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
1074 %!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
1075 %!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
1076
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1077 %!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
1078 %!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
1079 %!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
1080 %!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
1081 %!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
1082
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1083 */
87865ed7405f Second set of single precision test code and fix of resulting bugs
David Bateman <dbateman@free.fr>
parents: 7667
diff changeset
1084
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1085 DEFUNX ("isprint", Fisprint, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1086 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1087 @deftypefn {Mapping Function} {} isprint (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1088 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
1089 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1090 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1091 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1092 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1093 retval = args(0).xisprint ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1094 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1095 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
1096
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1097 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1098 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1099
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1100 DEFUNX ("ispunct", Fispunct, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1101 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1102 @deftypefn {Mapping Function} {} ispunct (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1103 Return 1 for punctuation characters.\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1104 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1105 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1106 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1107 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1108 retval = args(0).xispunct ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1109 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1110 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
1111
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1112 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1113 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1114
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1115 DEFUNX ("isspace", Fisspace, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1116 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1117 @deftypefn {Mapping Function} {} isspace (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1118 Return 1 for whitespace characters (space, formfeed, newline,\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1119 carriage return, tab, and vertical tab).\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1120 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1121 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1122 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1123 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1124 retval = args(0).xisspace ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1125 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1126 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
1127
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1128 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1129 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1130
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1131 DEFUNX ("isupper", Fisupper, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1132 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1133 @deftypefn {Mapping Function} {} isupper (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1134 Return 1 for upper case letters.\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1135 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1136 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1137 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1138 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1139 retval = args(0).xisupper ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1140 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1141 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
1142
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1143 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1144 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1145
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1146 DEFUNX ("isxdigit", Fisxdigit, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1147 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1148 @deftypefn {Mapping Function} {} isxdigit (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1149 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
1150 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1151 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1152 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1153 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1154 retval = args(0).xisxdigit ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1155 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1156 print_usage ();
2089
4dcc8b77e84a [project @ 1996-04-26 07:55:54 by jwe]
jwe
parents: 1996
diff changeset
1157
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1158 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1159 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1160
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1161 DEFUN (lgamma, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1162 "-*- texinfo -*-\n\
5518
a9bd6c31751f [project @ 2005-10-29 04:26:38 by jwe]
jwe
parents: 5418
diff changeset
1163 @deftypefn {Mapping Function} {} lgamma (@var{x})\n\
a9bd6c31751f [project @ 2005-10-29 04:26:38 by jwe]
jwe
parents: 5418
diff changeset
1164 @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
1165 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
1166 @seealso{gamma, gammainc}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1167 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1168 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1169 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1170 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1171 retval = args(0).lgamma ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1172 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1173 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1174
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1175 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1176 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1177
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
1178 /*
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
1179
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
1180 %!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
1181 %! 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
1182 %! 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
1183
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1184 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1185 %! 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
1186 %! 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
1187 %! 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
1188
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1189 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1190 %! 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
1191 %! 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
1192
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1193 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1194 %! 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
1195 %! 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
1196 %! 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
1197
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1198 %!error lgamma();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1199 %!error lgamma(1,2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1200
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
1201 */
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
1202
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1203 DEFUN (log, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1204 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1205 @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
1206 Compute the natural logarithm,\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1207 @iftex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1208 @tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1209 $\\ln{(x)},$\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1210 @end tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1211 @end iftex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1212 @ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1213 @code{ln (@var{x})},\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1214 @end ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1215 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
1216 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
1217 @seealso{exp, log1p, log2, log10, logspace}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1218 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1219 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1220 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1221 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1222 retval = args(0).log ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1223 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1224 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1225
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1226 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1227 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1228
7815
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
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1231 %!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
1232 %!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
1233
8084
46aa04055325 Use eps(single) as tolerance for single precesion test.
Ben Abbott <bpabbott@mac.com>
parents: 8067
diff changeset
1234 %!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
1235 %!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
1236
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1237 %!error log ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1238 %!error log (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1239
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1240 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1241
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1242 DEFUN (log10, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1243 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1244 @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
1245 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
1246 @seealso{log, log2, logspace, exp}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1247 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1248 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1249 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1250 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1251 retval = args(0).log10 ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1252 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1253 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1254
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1255 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1256 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1257
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1258 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1259
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1260 %!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
1261 %!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
1262
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1263 %!error log10 ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1264 %!error log10 (1, 2);
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 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1267
7638
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1268 DEFUN (log1p, args, ,
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1269 "-*- texinfo -*-\n\
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1270 @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
1271 Compute\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1272 @iftex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1273 @tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1274 $\\ln{(1 + x)}$\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1275 @end tex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1276 @end iftex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1277 @ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1278 @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
1279 @end ifnottex\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1280 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
1281 @seealso{log, exp, expm1}\n\
7638
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1282 @end deftypefn")
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1283 {
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1284 octave_value retval;
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1285 if (args.length () == 1)
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1286 retval = args(0).log1p ();
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1287 else
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1288 print_usage ();
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1289
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1290 return retval;
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1291 }
2df457529cfa implement expm1 and log1p functions
Jaroslav Hajek <highegg@gmail.com>
parents: 7636
diff changeset
1292
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1293 DEFUN (real, args, ,
3381
69b167451491 [project @ 1999-12-15 20:48:10 by jwe]
jwe
parents: 3373
diff changeset
1294 "-*- texinfo -*-\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1295 @deftypefn {Mapping Function} {} real (@var{z})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1296 Return the real part of @var{z}.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5518
diff changeset
1297 @seealso{imag, conj}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1298 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1299 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1300 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1301 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1302 retval = args(0).real ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1303 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1304 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1305
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1306 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1307 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1308
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1309 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1310
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1311 %!assert(real (1), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1312 %!assert(real (i), 0);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1313 %!assert(real (1+i), 1);
8459
d17874a6f161 improve indexing of diagonal & permutation matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 8442
diff changeset
1314 %!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
1315
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1316 %!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
1317 %!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
1318 %!assert(real (single(1+i)), single(1));
8459
d17874a6f161 improve indexing of diagonal & permutation matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 8442
diff changeset
1319 %!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
1320
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1321 %!error real ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1322 %!error real (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1323
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1324 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1325
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1326 DEFUN (round, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1327 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1328 @deftypefn {Mapping Function} {} round (@var{x})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1329 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
1330 @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
1331 @example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1332 @group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1333 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
1334 @result{} -3 3\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1335 @end group\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1336 @end example\n\
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1337 @seealso{ceil, floor, fix}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1338 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1339 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1340 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1341 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1342 retval = args(0).round ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1343 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1344 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1345
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1346 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1347 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1348
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1349 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1350
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1351 %!assert(round (1), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1352 %!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
1353 %!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
1354 %!assert(round (i), i);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1355 %!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
1356 %!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
1357 %!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
1358
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1359 %!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
1360 %!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
1361 %!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
1362 %!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
1363 %!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
1364 %!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
1365 %!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
1366
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1367 %!error round ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1368 %!error round (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1369
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1370 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1371
7636
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1372 DEFUN (roundb, args, ,
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1373 "-*- texinfo -*-\n\
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1374 @deftypefn {Mapping Function} {} roundb (@var{x})\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
1375 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
1376 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
1377 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
1378 @seealso{round}\n\
7636
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1379 @end deftypefn")
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1380 {
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1381 octave_value retval;
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1382 if (args.length () == 1)
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1383 retval = args(0).roundb ();
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1384 else
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1385 print_usage ();
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1386
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1387 return retval;
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1388 }
99c410f7f0b0 implement mapper function for banker's rounding
Jaroslav Hajek <highegg@gmail.com>
parents: 7601
diff changeset
1389
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1390 DEFUN (sign, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1391 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1392 @deftypefn {Mapping Function} {} sign (@var{x})\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1393 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
1394 @iftex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1395 @tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1396 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1397 {\\rm sign} (@var{x}) = \\cases{1,&$x>0$;\\cr 0,&$x=0$;\\cr -1,&$x<0$.\\cr}\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1398 $$\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1399 @end tex\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1400 @end iftex\n\
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 8459
diff changeset
1401 @ifnottex\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1402 \n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1403 @example\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
1404 @group\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1405 -1, x < 0;\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1406 sign (x) = 0, x = 0;\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1407 1, x > 0.\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
1408 @end group\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1409 @end example\n\
8517
81d6ab3ac93c Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents: 8459
diff changeset
1410 @end ifnottex\n\
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1411 \n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1412 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
1413 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1414 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1415 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1416 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1417 retval = args(0).signum ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1418 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1419 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1420
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1421 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1422 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1423
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1424 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1425
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1426 %!assert(sign (-2) , -1);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1427 %!assert(sign (3), 1);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1428 %!assert(sign (0), 0);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1429 %!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
1430
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1431 %!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
1432 %!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
1433 %!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
1434 %!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
1435
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1436 %!error sign ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1437 %!error sign (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1438
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1439 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1440
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1441 DEFUN (sin, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1442 "-*- texinfo -*-\n\
3428
5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe]
jwe
parents: 3411
diff changeset
1443 @deftypefn {Mapping Function} {} sin (@var{x})\n\
5016
bdbee5282954 [project @ 2004-09-22 02:50:35 by jwe]
jwe
parents: 4968
diff changeset
1444 Compute the sine of each element of @var{x}.\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1445 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1446 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1447 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1448 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1449 retval = args(0).sin ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1450 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1451 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1452
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1453 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1454 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1455
7815
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
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1458 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1459 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1460 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1461 %! 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
1462 %! 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
1463 %! 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
1464
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1465 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1466 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1467 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1468 %! 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
1469 %! 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
1470 %! 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
1471
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1472 %!error sin ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1473 %!error sin (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1474
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1475 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1476
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1477 DEFUN (sinh, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1478 "-*- texinfo -*-\n\
3428
5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe]
jwe
parents: 3411
diff changeset
1479 @deftypefn {Mapping Function} {} sinh (@var{x})\n\
5418
58107fed39bf [project @ 2005-07-21 00:04:46 by jwe]
jwe
parents: 5389
diff changeset
1480 Compute the hyperbolic sine of each element of @var{x}.\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1481 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1482 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1483 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1484 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1485 retval = args(0).sinh ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1486 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1487 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1488
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1489 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1490 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1491
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1492 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1493
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1494 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1495 %! 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
1496 %! 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
1497 %! 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
1498
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1499 %!test
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/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
1501 %! 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
1502 %! 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
1503
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1504 %!error sinh ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1505 %!error sinh (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 (sqrt, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1510 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1511 @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
1512 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
1513 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
1514 @ref{Linear Algebra}.\n\
9141
c1fff751b5a8 Update section 17.1 (Utility Functions) of arith.txi
Rik <rdrider0-list@yahoo.com>
parents: 9065
diff changeset
1515 @seealso{realsqrt}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1516 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1517 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1518 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1519 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1520 retval = args(0).sqrt ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1521 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1522 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1523
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1524 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1525 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1526
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1527 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1528
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1529 %!assert(sqrt (4), 2)
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1530 %!assert(sqrt (-1), i)
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1531 %!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
1532 %!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
1533
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1534 %!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
1535 %!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
1536 %!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
1537 %!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
1538
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1539 %!error sqrt ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1540 %!error sqrt (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1541
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1542 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1543
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1544 DEFUN (tan, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1545 "-*- texinfo -*-\n\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1546 @deftypefn {Mapping Function} {} tan (@var{z})\n\
5016
bdbee5282954 [project @ 2004-09-22 02:50:35 by jwe]
jwe
parents: 4968
diff changeset
1547 Compute tangent of each element of @var{x}.\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1548 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1549 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1550 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1551 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1552 retval = args(0).tan ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1553 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1554 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1555
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1556 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1557 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1558
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1559 /*
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 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1562 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1563 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1564 %! 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
1565 %! 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
1566 %! 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
1567
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1568 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1569 %! rt2 = sqrt (2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1570 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1571 %! 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
1572 %! 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
1573 %! 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
1574
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1575 %!error tan ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1576 %!error tan (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1577
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1578 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1579
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1580 DEFUN (tanh, args, ,
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1581 "-*- texinfo -*-\n\
3428
5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe]
jwe
parents: 3411
diff changeset
1582 @deftypefn {Mapping Function} {} tanh (@var{x})\n\
5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe]
jwe
parents: 3411
diff changeset
1583 Compute hyperbolic tangent of each element of @var{x}.\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1584 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1585 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1586 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1587 if (args.length () == 1)
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1588 retval = args(0).tanh ();
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1589 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1590 print_usage ();
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 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1593 }
1562
1cff14ab83a4 [project @ 1995-10-12 11:02:40 by jwe]
jwe
parents: 1384
diff changeset
1594
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1595 /*
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1596
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1597 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1598 %! x = [0, pi*i];
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1599 %! v = [0, 0];
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1600 %! 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
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 %! 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
1604 %! v = single([0, 0]);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1605 %! 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
1606
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1607 %!error tanh ();
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1608 %!error tanh (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1609
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1610 */
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7814
diff changeset
1611
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1612 DEFUNX ("toascii", Ftoascii, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1613 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1614 @deftypefn {Mapping Function} {} toascii (@var{s})\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1615 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
1616 \n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1617 @example\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1618 @group\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1619 toascii (\"ASCII\")\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1620 @result{} [ 65, 83, 67, 73, 73 ]\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1621 @end group\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1622 \n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1623 @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
1624 @seealso{char}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1625 @end deftypefn")
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 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1628 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1629 retval = args(0).xtoascii ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1630 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1631 print_usage ();
2267
4028b7c79927 [project @ 1996-05-24 00:39:30 by jwe]
jwe
parents: 2190
diff changeset
1632
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1633 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1634 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1635
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1636 DEFUNX ("tolower", Ftolower, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1637 "-*- texinfo -*-\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1638 @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
1639 @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
1640 Return a copy of the string or cell string @var{s}, with each upper-case\n\
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1641 character replaced by the corresponding lower-case one; nonalphabetic\n\
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1642 characters are left unchanged. For example,\n\
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1643 \n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1644 @example\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
1645 @group\n\
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1646 tolower (\"MiXeD cAsE 123\")\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1647 @result{} \"mixed case 123\"\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 9041
diff changeset
1648 @end group\n\
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1649 @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
1650 @seealso{toupper}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1651 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1652 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1653 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1654 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1655 retval = args(0).xtolower ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1656 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1657 print_usage ();
2267
4028b7c79927 [project @ 1996-05-24 00:39:30 by jwe]
jwe
parents: 2190
diff changeset
1658
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1659 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1660 }
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1661
8387
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1662 DEFALIAS (lower, tolower);
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1663
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1664 /*
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1665
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1666 %!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
1667 %!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
1668 %!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
1669 %!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
1670 %!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
1671 %!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
1672 %!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
1673 %!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
1674 %!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
1675 %!test
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1676 %! 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
1677 %! 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
1678
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1679 */
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1680
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1681
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1682 DEFUNX ("toupper", Ftoupper, args, ,
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1683 "-*- texinfo -*-\n\
3368
a4cd1e9d9962 [project @ 1999-11-20 17:22:48 by jwe]
jwe
parents: 3362
diff changeset
1684 @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
1685 @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
1686 Return a copy of the string or cell string @var{s}, with each lower-case\n\
8387
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1687 character replaced by the corresponding upper-case one; nonalphabetic\n\
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1688 characters are left unchanged. For example,\n\
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1689 \n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1690 @example\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1691 @group\n\
3552
41daa489833a [project @ 2000-02-03 03:05:28 by jwe]
jwe
parents: 3458
diff changeset
1692 toupper (\"MiXeD cAsE 123\")\n\
3361
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1693 @result{} \"MIXED CASE 123\"\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1694 @end group\n\
4f40efa995c1 [project @ 1999-11-19 21:19:37 by jwe]
jwe
parents: 3322
diff changeset
1695 @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
1696 @seealso{tolower}\n\
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1697 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1698 {
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1699 octave_value retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1700 if (args.length () == 1)
7528
26d8a92644de try to avoid ctype macro problems
John W. Eaton <jwe@octave.org>
parents: 7503
diff changeset
1701 retval = args(0).xtoupper ();
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1702 else
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1703 print_usage ();
3206
d0d2b69dc6c2 [project @ 1998-11-03 02:43:31 by jwe]
jwe
parents: 3156
diff changeset
1704
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1705 return retval;
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1706 }
3321
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
1707
8387
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1708 DEFALIAS (upper, toupper);
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1709
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1710 /*
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1711
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1712 %!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
1713 %!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
1714 %!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
1715 %!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
1716 %!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
1717 %!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
1718 %!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
1719 %!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
1720 %!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
1721 %!test
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1722 %! 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
1723 %! 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
1724
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1725 */
1567db1e166c make upper and lower aliases of toupper and tolower respectively
Thorsten Meyer <thorsten.meyier@gmx.de>
parents: 8366
diff changeset
1726
7503
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1727 DEFALIAS (gammaln, lgamma);
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1728
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
1729 DEFALIAS (isfinite, finite);
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 331
diff changeset
1730
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1731 /*
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1732 ;;; Local Variables: ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1733 ;;; mode: C++ ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1734 ;;; End: ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1735 */