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Update section 17.1 (Utility Functions) of arith.txi Split section into "Exponents and Logarithms" and "Utility Functions" Use Tex in many more of the doc strings for pretty printing in pdf format.
author Rik <rdrider0-list@yahoo.com>
date Mon, 20 Apr 2009 17:16:09 -0700
parents 8207b833557f
children 5247e89688e1
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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
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5
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6 This file is part of Octave.
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7
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8 Octave is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 3 of the License, or (at your
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11 option) any later version.
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12
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13 Octave is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Octave; see the file COPYING. If not, see
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20 <http://www.gnu.org/licenses/>.
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22 */
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23
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24 #ifdef HAVE_CONFIG_H
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25 #include <config.h>
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26 #endif
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27
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28 #include <cctype>
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29 #include <cfloat>
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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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diff changeset
443 return retval;
8c32f95c2639 convert mapper functions to new format
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parents: 7385
diff changeset
444 }
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David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
445
7815
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David Bateman <dbateman@free.fr>
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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>
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diff changeset
450 %! rt3 = sqrt (3);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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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>
parents: 7814
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>
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diff changeset
461
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff changeset
462 %!error cos ();
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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
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diff changeset
465 */
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diff changeset
466
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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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diff changeset
471 @end deftypefn")
8c32f95c2639 convert mapper functions to new format
David Bateman <dbateman@free.fr>
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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
8c32f95c2639 convert mapper functions to new format
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479 return retval;
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David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
480 }
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David Bateman <dbateman@free.fr>
parents: 7385
diff changeset
481
7815
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David Bateman <dbateman@free.fr>
parents: 7814
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>
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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>
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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>
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diff changeset
489 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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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
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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>
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diff changeset
495 %!error cosh (1, 2);
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff changeset
496
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
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diff changeset
497 */
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David Bateman <dbateman@free.fr>
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diff changeset
498
7503
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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
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sh@sh-laptop
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\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
512 @smallexample\n\
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\
6923abb04e16 [project @ 1999-10-26 18:15:30 by jwe]
jwe
parents: 3249
diff changeset
518 @end smallexample\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
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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 */