Mercurial > octave-libgccjit
annotate NEWS @ 16941:e6ddaa65a777
Add new function jit_startcnt to control JIT acceleration.
* NEWS: Announce new function.
* doc/interpreter/vectorize.txi: Add verbiage to manual about function.
* libinterp/corefcn/pt-jit.cc(Fjit_startcnt): New function which manages
static variable Vjit_startcnt. Variable is threshold above which JIT
acceleration takes place.
* libinterp/corefcn/pt-jit.cc(Fjit_enable, Fdebug_jit): Update seealso links
in docstring.
author | Rik <rik@octave.org> |
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date | Tue, 09 Jul 2013 17:37:26 -0700 |
parents | 06897f865f0b |
children | 45afabc5f7c8 |
rev | line source |
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1 Summary of important user-visible changes for version 4.0: |
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2 --------------------------------------------------------- |
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3 |
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4 ** A new GUI is now available with Octave. |
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5 |
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6 ** Warning states may now be set temporarily, until the end of the |
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7 current function, using the syntax |
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8 |
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9 warning STATE ID "local" |
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10 |
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11 in which STATE may be "on", "off", or "error". Changes to warning |
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12 states that are set locally affect the current function and all |
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13 functions called from the current scope. The previous warning state |
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14 is restored on return from the current function. The "local" |
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15 option is ignored if used in the top-level workspace. |
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16 |
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17 Summary of important user-visible changes for version 3.8: |
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18 --------------------------------------------------------- |
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19 |
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20 ** Octave now supports nested functions with scoping rules that are |
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21 compatible with Matlab. A nested function is one declared and defined |
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22 within the body of another function. The nested function is only |
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23 accessible from within the enclosing function which makes it one |
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24 method for making private functions whose names do not conflict with those |
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25 in the global namespace (See also subfunctions and private functions). |
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26 In addition, variables in the enclosing function are visible within the |
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27 nested function. This makes it possible to have a pseudo-global variable |
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28 which can be seen by a group of functions, but which is not visible in |
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29 the global namespace. |
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30 |
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31 Example: |
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32 function outerfunc (...) |
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33 ... |
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34 function nested1 (...) |
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35 ... |
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36 function nested2 (...) |
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37 ... |
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38 endfunction |
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39 endfunction |
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40 |
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41 function nested3 (...) |
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42 ... |
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43 endfunction |
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44 endfunction |
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45 |
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46 ** 'emptymatch', 'noemptymatch' options added to regular expressions. |
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47 |
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48 With this addition Octave now accepts the entire set of Matlab options |
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49 for regular expressions. 'noemptymatch' is the default, but 'emptymatch' |
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50 has certain uses where you need to match an assertion rather than actual |
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51 characters. For example, |
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52 |
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53 regexprep ('World', '^', 'Hello ', 'emptymatch') |
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54 => Hello World |
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55 |
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56 where the pattern is actually the assertion '^' or start-of-line. |
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57 |
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58 ** For compatibility with Matlab, the regexp, regexpi, and regexprep |
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59 functions now process backslash escape sequences in single-quoted pattern |
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60 strings. In addition, the regexprep function now processes backslash |
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61 escapes in single-quoted replacement strings. For example, |
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62 |
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63 regexprep (str, '\t', '\n') |
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64 |
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65 would search the variable str for a TAB character (escape sequence \t) |
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66 and replace it with a NEWLINE (escape sequence \n). Previously the |
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67 expression would have searched for a literal '\' followed by 't' and |
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68 replaced the two characters with the sequence '\', 'n'. |
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69 |
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70 ** Redundant terminal comma accepted by parser |
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71 |
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72 A redundant terminal comma is now accepted in matrix |
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73 definitions which allows writing code such as |
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74 |
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75 [a,... |
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76 b,... |
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77 c,... |
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78 ] = deal (1,2,3) |
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79 |
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80 ** Line continuations inside character strings have changed. |
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81 |
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82 The sequence '...' is no longer recognized as a line continuations |
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83 are inside character strings. A backslash followed by a newline |
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84 character is no longer recognized as a line continuation inside |
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85 single-quoted character strings. Inside double-quoted character |
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86 strings, a backslash followed by a newline character is still |
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87 recognized as a line continuation but the backslash character must |
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88 be followed immediately by the newline character. No whitespace or |
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89 end-of-linecomment may appear between them. |
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90 |
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91 ** Warning IDs renamed: |
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92 |
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93 Octave:array-as-scalar => Octave:array-to-scalar |
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94 Octave:array-as-vector => Octave:array-to-vector |
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95 |
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96 ** The m-files in the image directory have been overhauled. |
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97 |
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98 The principal benefit is that Octave will now no longer automatically |
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99 convert images stored with integers to doubles. Storing images as uint8 |
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100 or uint16 requires only 1/8 or 1/4 the memory of an image stored using |
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101 doubles. For certain operations, such as fft2, the image must still be |
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102 converted to double in order to work. |
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103 |
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104 Other changes include fixes to the way indexed images are read from a |
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105 colormap depending on the image class (integer images have a -1 offset to |
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106 the colormap row number). |
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107 |
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108 ** The colormap function now provides new options--"list", "register", |
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109 and "unregister"--to list all available colormap functions, and to |
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110 add or remove a function name from the list of known colormap |
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111 functions. Packages that implement extra colormaps should use these |
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112 commands with PKG_ADD and PKG_DEL statements. |
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113 |
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114 ** strsplit has been modified to be compatible with Matlab. There |
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115 are two instances where backward compatibility is broken. |
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116 |
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117 (1) Delimiters are now string vectors, not scalars. |
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118 |
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119 Octave's legacy behavior |
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120 |
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121 strsplit ("1 2, 3", ", ") |
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122 ans = |
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123 { |
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124 [1,1] = 1 |
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125 [1,2] = 2 |
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126 [1,3] = |
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127 [1,4] = 3 |
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128 } |
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129 |
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130 Matlab compatible behavior |
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131 |
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132 strsplit ("1 2, 3", ", ") |
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133 ans = |
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134 { |
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135 [1,1] = 1 2 |
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136 [1,2] = 3 |
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137 } |
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138 |
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139 (2) By default, Matlab treats consecutive delimiters are as a single |
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140 delimiter. By default, Octave's legacy behavior was to return an |
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141 empty string for the part between the delmiters. |
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142 |
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143 Where the legacy behavior is desired, the call to strsplit() may be |
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144 replaced by ostrsplit(), which is Octave's original implementation of |
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145 strsplit(). |
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146 |
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147 ** The datevec function has been extended for better Matlab compatibility. |
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148 It now accepts string inputs in the following numerical formats: 12, 21, |
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149 22, 26, 29, 31. This is undocumented, but verifiable, Matlab behavior. |
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150 In addition, the default for formats which do not specify a date is |
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151 January 1st of the current year. The previous default was the current day, |
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152 month, and year. This may produce changes in existing scripts. |
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153 |
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154 ** The error function and its derivatives has been extended to accept complex |
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155 arguments. The following functions now accept complex inputs: |
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156 |
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157 erf erfc erfcx |
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158 |
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159 In addition two new error functions erfi (imaginary error function) and |
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160 dawson (scaled imaginary error function) have been added. |
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161 |
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162 ** The default name of the Octave crash dump file is now called |
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163 octave-workspace instead of octave-core. |
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164 |
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165 ** A citation command has been added to display information on how to |
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166 cite Octave and packages in publications. The package system will |
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167 look for and install CITATION files from packages. |
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168 |
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169 ** The java package from Octave Forge is now part of core Octave. The |
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170 following new functions are available for interacting with Java |
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171 directly from Octave: |
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172 |
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173 debug_java java_matrix_autoconversion |
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174 isjava java_unsigned_autoconversion |
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175 java2mat javaaddpath |
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176 javaArray javaclasspath |
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177 javaMethod javamem |
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178 javaObject javarmpath |
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179 usejava |
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180 |
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181 In addition, the following functions that use the Java interface |
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182 are now available (provided that Octave is compiled with support for |
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183 Java enabled): |
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184 |
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185 helpdlg listdlg questdlg |
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186 inputdlg msgbox warndlg |
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187 |
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188 ** Other new functions added in 3.8.0: |
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189 |
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190 atan2d erfcinv lines |
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191 base64_decode erfi polyeig |
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192 base64_encode expint readline_re_read_init_file |
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193 betaincinv findfigs readline_read_init_file |
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194 built_in_docstrings_file flintmax rgbplot |
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195 cmpermute fminsearch save_default_options |
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196 cmunique gallery shrinkfaces |
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197 colorcube gco splinefit |
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198 copyobj hdl2struct stemleaf |
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199 dawson history_save strjoin |
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200 dblist imformats struct2hdl |
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201 debug_jit importdata tetramesh |
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202 doc_cache_create iscolormap waterfall |
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203 ellipj jit_enable |
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204 ellipke jit_startcnt |
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205 |
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206 ** Deprecated functions. |
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207 |
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208 The following functions were deprecated in Octave 3.4 and have been |
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209 removed from Octave 3.8. |
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210 |
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211 autocor dispatch is_global setstr |
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212 autocov fstat krylovb strerror |
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213 betai gammai perror values |
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214 cellidx glpkmex replot |
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215 cquad is_duplicate_entry saveimage |
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216 |
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217 The following functions have been deprecated in Octave 3.8 and will |
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218 be removed from Octave 3.12 (or whatever version is the second major |
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219 release after 3.8): |
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220 |
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221 default_save_options java_set |
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222 gen_doc_cache java_unsigned_conversion |
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223 isequalwithequalnans javafields |
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224 java_convert_matrix javamethods |
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225 java_debug re_read_readline_init_file |
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226 java_get read_readline_init_file |
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227 java_invoke saving_history |
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228 java_new |
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229 |
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230 The following keywords have been deprecated in Octave 3.8 and will |
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231 be removed from Octave 3.12 (or whatever version is the second major |
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232 release after 3.8): |
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233 |
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234 static |
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235 |
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236 The following configuration variables have been deprecated in Octave |
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237 3.8 and will be removed from Octave 3.12 (or whatever version is the |
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238 second major release after 3.8): |
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239 |
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240 CC_VERSION (now GCC_VERSION) |
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241 CXX_VERSION (now GXX_VERSION) |
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242 |
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243 Summary of important user-visible changes for version 3.6: |
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244 --------------------------------------------------------- |
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245 |
14188 | 246 ** The PCRE library is now required to build Octave. If a pre-compiled |
247 package does not exist for your system, you can find PCRE sources | |
248 at http://www.pcre.org | |
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249 |
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250 ** The ARPACK library is no longer distributed with Octave. |
14188 | 251 If you need the eigs or svds functions you must provide an |
252 external ARPACK through a package manager or by compiling it | |
253 yourself. If a pre-compiled package does not exist for your system, | |
254 you can find the current ARPACK sources at | |
255 http://forge.scilab.org/index.php/p/arpack-ng | |
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256 |
14082 | 257 ** Many of Octave's binary operators (.*, .^, +, -, ...) now perform |
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258 automatic broadcasting for array operations which allows you to use |
14082 | 259 operator notation instead of calling bsxfun or expanding arrays (and |
260 unnecessarily wasting memory) with repmat or similar idioms. For | |
261 example, to scale the columns of a matrix by the elements of a row | |
262 vector, you may now write | |
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263 |
14082 | 264 rv .* M |
265 | |
266 In this expression, the number of elements of rv must match the | |
267 number of columns of M. The following operators are affected: | |
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268 |
14082 | 269 plus + .+ |
270 minus - .- | |
271 times .* | |
272 rdivide ./ | |
273 ldivide .\ | |
274 power .^ .** | |
275 lt < | |
276 le <= | |
277 eq == | |
278 gt > | |
279 ge >= | |
280 ne != ~= | |
281 and & | |
282 or | | |
283 atan2 | |
284 hypot | |
285 max | |
286 min | |
287 mod | |
288 rem | |
289 xor | |
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290 |
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291 additionally, since the A op= B assignment operators are equivalent |
14082 | 292 to A = A op B, the following operators are also affected: |
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293 |
14082 | 294 += -= .+= .-= .*= ./= .\= .^= .**= &= |= |
295 | |
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296 See the "Broadcasting" section in the new "Vectorization and Faster |
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297 Code Execution" chapter of the manual for more details. |
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298 |
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299 ** Octave now features a profiler, thanks to the work of Daniel Kraft |
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300 under the Google Summer of Code mentorship program. The manual has |
13262 | 301 been updated to reflect this addition. The new user-visible |
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302 functions are profile, profshow, and profexplore. |
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303 |
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304 ** Overhaul of statistical distribution functions |
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305 |
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306 Functions now return "single" outputs for inputs of class "single". |
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307 |
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308 75% reduction in memory usage through use of logical indexing. |
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309 |
14188 | 310 Random sample functions now use the same syntax as rand and accept |
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311 a comma separated list of dimensions or a dimension vector. |
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312 |
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313 Functions have been made Matlab-compatible with regard to special |
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314 cases (probability on boundaries, probabilities for values outside |
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315 distribution, etc.). This may cause subtle changes to existing |
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316 scripts. |
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317 |
14188 | 318 negative binomial function has been extended to real, non-integer |
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319 inputs. The discrete_inv function now returns v(1) for 0 instead of |
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320 NaN. The nbincdf function has been recoded to use a closed form |
14188 | 321 solution with betainc. |
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322 |
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323 ** strread, textscan, and textread have been completely revamped. |
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324 |
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325 They now support nearly all Matlab functionality including: |
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326 |
14082 | 327 * Matlab-compatible whitespace and delimiter defaults |
328 | |
329 * Matlab-compatible options: 'whitespace', treatasempty', format | |
330 string repeat count, user-specified comment style, uneven-length | |
331 output arrays, %n and %u conversion specifiers (provisionally) | |
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332 |
14082 | 333 ** All .m string functions have been modified for better performance or |
334 greater Matlab compatibility. Performance gains of 15X-30X have | |
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335 been demonstrated. Operations on cell array of strings no longer pay |
14082 | 336 quite as high a penalty as those on 2-D character arrays. |
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337 |
14082 | 338 deblank: Now requires character or cellstr input. |
339 | |
340 strtrim: Now requires character or cellstr input. | |
341 No longer trims nulls ("\0") from string for Matlab | |
342 compatibility. | |
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343 |
14082 | 344 strmatch: Follows documentation precisely and ignores trailing spaces |
345 in pattern and in string. Note that this is documented | |
346 Matlab behavior but the implementation apparently does | |
347 not always follow it. | |
348 | |
349 substr: Now possible to specify a negative LEN option which | |
350 extracts to within LEN of the end of the string. | |
351 | |
352 strtok: Now accepts cellstr input. | |
353 | |
354 base2dec, bin2dec, hex2dec: | |
355 Now accept cellstr inputs. | |
356 | |
357 dec2base, dec2bin, dec2hex: | |
358 Now accept cellstr inputs. | |
359 | |
360 index, rindex: | |
361 Now accept 2-D character array input. | |
362 | |
363 strsplit: Now accepts 2-D character array input. | |
13262 | 364 |
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365 ** Geometry functions derived from Qhull (convhull, delaunay, voronoi) |
14082 | 366 have been revamped. The options passed to the underlying qhull |
367 command have been changed for better results or for Matlab | |
368 compatibility. | |
369 | |
370 convhull: Default options are "Qt" for 2D, 3D, 4D inputs | |
371 Default options are "Qt Qx" for 5D and higher | |
372 | |
373 delaunay: Default options are "Qt Qbb Qc Qz" for 2D and 3D inputs | |
374 Default options are "Qt Qbb Qc Qx" for 4D and higher | |
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375 |
14082 | 376 voronoi: No default arguments |
377 | |
378 ** Date/Time functions updated. Millisecond support with FFF format | |
379 string now supported. | |
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380 |
14082 | 381 datestr: Numerical formats 21, 22, 29 changed to match Matlab. |
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382 Now accepts cellstr input. |
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383 |
14082 | 384 ** The following warning IDs have been removed: |
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385 |
14082 | 386 Octave:associativity-change |
387 Octave:complex-cmp-ops | |
388 Octave:empty-list-elements | |
389 Octave:fortran-indexing | |
390 Octave:precedence-change | |
391 | |
392 ** The warning ID Octave:string-concat has been renamed to | |
393 Octave:mixed-string-concat. | |
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394 |
14082 | 395 ** Octave now includes the following Matlab-compatible preference |
396 functions: | |
13262 | 397 |
14082 | 398 addpref getpref ispref rmpref setpref |
13262 | 399 |
14082 | 400 ** The following Matlab-compatible handle graphics functions have been |
401 added: | |
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402 |
14082 | 403 guidata uipanel uitoolbar |
404 guihandles uipushtool uiwait | |
405 uicontextmenu uiresume waitfor | |
406 uicontrol uitoggletool | |
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407 |
13933
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408 The uiXXX functions above are experimental. |
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409 |
14082 | 410 Except for uiwait and uiresume, the uiXXX functions are not |
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411 supported with the FLTK+OpenGL graphics toolkit. |
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412 |
14082 | 413 The gnuplot graphics toolkit does not support any of the uiXXX |
414 functions nor the waitfor function. | |
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415 |
14082 | 416 ** New keyword parfor (parallel for loop) is now recognized as a valid |
417 keyword. Implementation, however, is still mapped to an ordinary | |
418 for loop. | |
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419 |
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420 ** Other new functions added in 3.6.0: |
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421 |
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422 bicg nthargout usejava |
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423 is_dq_string narginchk waitbar |
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424 is_sq_string python zscore |
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425 is_function_handle register_graphics_toolkit |
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426 loaded_graphics_toolkits recycle |
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427 |
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428 ** Deprecated functions. |
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429 |
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430 The following functions were deprecated in Octave 3.2 and have been |
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431 removed from Octave 3.6. |
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432 |
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433 create_set spcholinv splu |
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434 dmult spcumprod spmax |
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435 iscommand spcumsum spmin |
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436 israwcommand spdet spprod |
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437 lchol spdiag spqr |
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438 loadimage spfind spsum |
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439 mark_as_command sphcat spsumsq |
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440 mark_as_rawcommand spinv spvcat |
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441 spatan2 spkron str2mat |
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442 spchol splchol unmark_command |
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443 spchol2inv split unmark_rawcommand |
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444 |
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445 The following functions have been deprecated in Octave 3.6 and will |
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446 be removed from Octave 3.10 (or whatever version is the second major |
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447 release after 3.6): |
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448 |
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449 cut is_duplicate_entry |
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450 cor polyderiv |
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451 corrcoef shell_cmd |
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452 __error_text__ studentize |
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453 error_text sylvester_matrix |
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454 |
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455 ** The following functions have been modified for Matlab compatibility: |
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456 |
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457 randperm |
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458 |
13251 | 459 Summary of important user-visible changes for version 3.4.3: |
460 ----------------------------------------------------------- | |
461 | |
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462 ** Octave 3.4.3 is a bug fixing release. |
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463 |
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464 Summary of important user-visible changes for version 3.4.2: |
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465 ----------------------------------------------------------- |
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466 |
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467 ** Octave 3.4.2 fixes some minor installation problems that affected |
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468 version 3.4.1. |
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469 |
12709 | 470 Summary of important user-visible changes for version 3.4.1: |
471 ----------------------------------------------------------- | |
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472 |
12709 | 473 ** Octave 3.4.1 is primarily a bug fixing release. |
474 | |
475 ** IMPORTANT note about binary incompatibility in this release: | |
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476 |
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477 Binary compatibility for all 3.4.x releases was originally planned, |
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478 but this is impossible for the 3.4.1 release due to a bug in the way |
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479 shared libraries were built in Octave 3.4.0. Because of this bug, |
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480 .oct files built for Octave 3.4.0 must be recompiled before they |
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481 will work with Octave 3.4.1. |
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482 |
12709 | 483 Given that there would be binary incompatibilities with shared |
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484 libraries going from Octave 3.4.0 to 3.4.1, the following |
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485 incompatible changes were also made in this release: |
12709 | 486 |
487 * The Perl Compatible Regular Expression (PCRE) library is now | |
488 required to build Octave. | |
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489 |
12712 | 490 * Octave's libraries and .oct files are now installed in |
491 subdirectories of $libdir instead of $libexecdir. | |
492 | |
12709 | 493 Any future Octave 3.4.x release versions should remain binary |
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494 compatible with Octave 3.4.1 as proper library versioning is now |
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495 being used as recommended by the libtool manual. |
12709 | 496 |
497 ** The following functions have been deprecated in Octave 3.4.1 and will | |
498 be removed from Octave 3.8 (or whatever version is the second major | |
499 release after 3.4): | |
500 | |
501 cquad is_duplicate_entry perror strerror | |
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502 |
12709 | 503 ** The following functions are new in 3.4.1: |
504 | |
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505 colstyle gmres iscolumn isrow mgorth nproc rectangle |
12709 | 506 |
507 ** The get_forge_pkg function is now private. | |
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508 |
12709 | 509 ** The rectangle_lw, rectangle_sw, triangle_lw, and triangle_sw |
510 functions are now private. | |
511 | |
512 ** The logistic_regression_derivatives and logistic_regression_likelihood | |
513 functions are now private. | |
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514 |
12739 | 515 ** ChangeLog files in the Octave sources are no longer maintained |
516 by hand. Instead, there is a single ChangeLog file generated from | |
517 the Mercurial version control commit messages. Older ChangeLog | |
518 information can be found in the etc/OLD-ChangeLogs directory in the | |
519 source distribution. | |
520 | |
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521 Summary of important user-visible changes for version 3.4: |
9352 | 522 --------------------------------------------------------- |
523 | |
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524 ** BLAS and LAPACK libraries are now required to build Octave. The |
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525 subset of the reference BLAS and LAPACK libraries has been removed |
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526 from the Octave sources. |
12418
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527 |
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528 ** The ARPACK library is now distributed with Octave so it no longer |
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529 needs to be available as an external dependency when building |
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530 Octave. |
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531 |
10118 | 532 ** The `lookup' function was extended to be more useful for |
533 general-purpose binary searching. Using this improvement, the | |
534 ismember function was rewritten for significantly better | |
535 performance. | |
9352 | 536 |
537 ** Real, integer and logical matrices, when used in indexing, will now | |
538 cache the internal index_vector value (zero-based indices) when | |
539 successfully used as indices, eliminating the conversion penalty for | |
10118 | 540 subsequent indexing by the same matrix. In particular, this means it |
541 is no longer needed to avoid repeated indexing by logical arrays | |
542 using find for performance reasons. | |
9888 | 543 |
10118 | 544 ** Logical matrices are now treated more efficiently when used as |
545 indices. Octave will keep the index as a logical mask unless the | |
546 ratio of true elements is small enough, using a specialized | |
547 code. Previously, all logical matrices were always first converted | |
548 to index vectors. This results in savings in both memory and | |
549 computing time. | |
9480 | 550 |
10118 | 551 ** The `sub2ind' and `ind2sub' functions were reimplemented as compiled |
552 functions for better performance. These functions are now faster, | |
553 can deliver more economized results for ranges, and can reuse the | |
554 index cache mechanism described in previous paragraph. | |
555 | |
556 ** The built-in function equivalents to associative operators (`plus', | |
557 `times', `mtimes', `and', and `or') have been extended to accept | |
558 multiple arguments. This is especially useful for summing | |
559 (multiplying, etc.) lists of objects (of possibly distinct types): | |
9408 | 560 |
9449 | 561 matrix_sum = plus (matrix_list{:}); |
562 | |
10118 | 563 ** An FTP object type based on libcurl has been implemented. These |
564 objects allow ftp connections, downloads and uploads to be | |
565 managed. For example, | |
9880 | 566 |
10118 | 567 fp = ftp ("ftp.octave.org); |
568 cd (fp, "gnu/octave"); | |
569 mget (fp, "octave-3.2.3.tar.bz2"); | |
570 close (fp); | |
9880 | 571 |
10118 | 572 ** The default behavior of `assert (observed, expected)' has been |
573 relaxed to employ less strict checking that does not require the | |
574 internals of the values to match. This avoids previously valid | |
575 tests from breaking due to new internal classes introduced in future | |
576 Octave versions. | |
9449 | 577 |
578 For instance, all of these assertions were true in Octave 3.0.x | |
579 but false in 3.2.x due to new optimizations and improvements: | |
580 | |
581 assert (2*linspace (1, 5, 5), 2*(1:5)) | |
582 assert (zeros (0, 0), []) | |
583 assert (2*ones (1, 5), (2) (ones (1,5))) | |
9462 | 584 |
10118 | 585 ** The behavior of library functions `ismatrix', `issquare', and |
586 `issymmetric' has been changed for better consistency. | |
9873 | 587 |
10292 | 588 * The `ismatrix' function now returns true for all numeric, |
11562
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589 logical and character 2-D or N-D matrices. Previously, `ismatrix' |
10292 | 590 returned false if the first or second dimension was zero. |
591 Hence, `ismatrix ([])' was false, | |
592 while `ismatrix (zeros (1,2,0))' was true. | |
9873 | 593 |
10118 | 594 * The `issquare' function now returns a logical scalar, and is |
595 equivalent to the expression | |
596 | |
597 ismatrix (x) && ndims (x) == 2 && rows (x) == columns (x) | |
598 | |
599 The dimension is no longer returned. As a result, `issquare ([])' | |
600 now yields true. | |
9873 | 601 |
10118 | 602 * The `issymmetric' function now checks for symmetry instead of |
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603 Hermitianness. For the latter, ishermitian was created. Also, |
10118 | 604 logical scalar is returned rather than the dimension, so |
605 `issymmetric ([])' is now true. | |
9873 | 606 |
10118 | 607 ** Function handles are now aware of overloaded functions. If a |
608 function is overloaded, the handle determines at the time of its | |
609 reference which function to call. A non-overloaded version does not | |
610 need to exist. | |
9873 | 611 |
10118 | 612 ** Overloading functions for built-in classes (double, int8, cell, |
613 etc.) is now compatible with Matlab. | |
9408 | 614 |
10323 | 615 ** Function handles can now be compared with the == and != operators, |
616 as well as the `isequal' function. | |
617 | |
10118 | 618 ** Performance of concatenation (using []) and the functions `cat', |
619 `horzcat', and `vertcat' has been improved for multidimensional | |
620 arrays. | |
10117 | 621 |
9547 | 622 ** The operation-assignment operators +=, -=, *= and /= now behave more |
10118 | 623 efficiently in certain cases. For instance, if M is a matrix and S a |
624 scalar, then the statement | |
9547 | 625 |
10118 | 626 M += S; |
9547 | 627 |
10118 | 628 will operate on M's data in-place if it is not shared by another |
629 variable, usually increasing both time and memory efficiency. | |
9547 | 630 |
9558 | 631 Only selected common combinations are affected, namely: |
9547 | 632 |
633 matrix += matrix | |
634 matrix -= matrix | |
9558 | 635 matrix .*= matrix |
636 matrix ./= matrix | |
637 | |
9547 | 638 matrix += scalar |
639 matrix -= scalar | |
640 matrix *= scalar | |
641 matrix /= scalar | |
9558 | 642 |
9552 | 643 logical matrix |= logical matrix |
644 logical matrix &= logical matrix | |
9547 | 645 |
10118 | 646 where matrix and scalar belong to the same class. The left-hand |
647 side must be a simple variable reference. | |
9888 | 648 |
10118 | 649 Moreover, when unary operators occur in expressions, Octave will |
650 also try to do the operation in-place if it's argument is a | |
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651 temporary expression. |
9589 | 652 |
10118 | 653 ** The effect of comparison operators (<, >, <=, and >=) applied to |
654 complex numbers has changed to be consistent with the strict | |
655 ordering defined by the `max', `min', and `sort' functions. More | |
656 specifically, complex numbers are compared by lexicographical | |
657 comparison of the pairs `[abs(z), arg(z)]'. Previously, only real | |
14188 | 658 parts were compared; this can be trivially achieved by converting |
659 the operands to real values with the `real' function. | |
9547 | 660 |
10118 | 661 ** The automatic simplification of complex computation results has |
662 changed. Octave will now simplify any complex number with a zero | |
663 imaginary part or any complex matrix with all elements having zero | |
664 imaginary part to a real value. Previously, this was done only for | |
665 positive zeros. Note that the behavior of the complex function is | |
666 unchanged and it still produces a complex value even if the | |
667 imaginary part is zero. | |
9826 | 668 |
10118 | 669 ** As a side effect of code refactoring in liboctave, the binary |
670 logical operations are now more easily amenable to compiler | |
671 optimizations and are thus significantly faster. | |
9595 | 672 |
10118 | 673 ** Octave now allows user-defined `subsasgn' methods to optimize out |
674 redundant copies. For more information, see the manual. | |
9595 | 675 |
10453 | 676 ** More efficient matrix division handling. Octave is now able to |
10118 | 677 handle the expressions |
9664 | 678 |
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679 M' \ V |
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680 M.' \ V |
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681 V / M |
9664 | 682 |
10118 | 683 (M is a matrix and V is a vector) more efficiently in certain cases. |
684 In particular, if M is triangular, all three expressions will be | |
685 handled by a single call to xTRTRS (from LAPACK), with appropriate | |
10453 | 686 flags. Previously, all three expressions required a physical |
10118 | 687 transpose of M. |
9664 | 688 |
10118 | 689 ** More efficient handling of certain mixed real-complex matrix |
690 operations. For instance, if RM is a real matrix and CM a complex | |
691 matrix, | |
9664 | 692 |
10118 | 693 RM * CM |
9664 | 694 |
695 can now be evaluated either as | |
696 | |
697 complex (RM * real (CM), RM * imag (CM)) | |
698 | |
699 or as | |
700 | |
701 complex (RM) * CM, | |
702 | |
10453 | 703 depending on the dimensions. The first form requires more |
704 temporaries and copying, but halves the FLOP count, which normally | |
705 brings better performance if RM has enough rows. Previously, the | |
706 second form was always used. | |
9664 | 707 |
11111 | 708 Matrix division is similarly affected. |
9664 | 709 |
10118 | 710 ** More efficient handling of triangular matrix factors returned from |
711 factorizations. The functions for computing QR, LU and Cholesky | |
712 factorizations will now automatically return the triangular matrix | |
713 factors with proper internal matrix_type set, so that it won't need | |
714 to be computed when the matrix is used for division. | |
9717 | 715 |
10118 | 716 ** The built-in `sum' function now handles the non-native summation |
717 (i.e., double precision sum of single or integer inputs) more | |
718 efficiently, avoiding a temporary conversion of the whole input | |
719 array to doubles. Further, `sum' can now accept an extra option | |
720 argument, using a compensated summation algorithm rather than a | |
721 straightforward sum, which significantly improves precision if lots | |
722 of cancellation occurs in the summation. | |
9717 | 723 |
10118 | 724 ** The built-in `bsxfun' function now uses optimized code for certain |
725 cases where built-in operator handles are passed in. Namely, the | |
726 optimizations concern the operators `plus', `minus', `times', | |
727 `ldivide', `rdivide', `power', `and', `or' (for logical arrays), | |
728 the relational operators `eq', `ne', `lt', `le', `gt', `ge', and the | |
729 functions `min' and `max'. Optimizations only apply when both | |
730 operands are of the same built-in class. Mixed real/complex and | |
731 single/double operations will first convert both operands to a | |
732 common type. | |
9745 | 733 |
10118 | 734 ** The `strfind' and `strrep' functions now have compiled |
735 implementations, facilitating significantly more efficient searching | |
736 and replacing in strings, especially with longer patterns. The code | |
737 of `strcat' has been vectorized and is now much more efficient when | |
738 many strings are concatenated. The `strcmpi' and `strncmpi' | |
739 functions are now built-in functions, providing better performance. | |
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740 |
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741 ** 'str2double' now has a compiled implementation and the API conforms |
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742 to Matlab. The additional Octave-specific features of returning a |
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743 boolean matrix indicating which elements were successfully converted |
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744 has been removed. |
10208 | 745 |
10453 | 746 ** Matlab-style ignoring input and output function arguments using |
11111 | 747 tilde (~) is now supported. Ignored output arguments may be |
748 detected from a function using the built-in function `isargout'. | |
749 For more details, consult the manual. | |
10886 | 750 |
10453 | 751 ** The list datatype, deprecated since the introduction of cells, has |
752 been removed. | |
10276 | 753 |
10453 | 754 ** The accumarray function has been optimized and is now significantly |
755 faster in certain important cases. | |
10054 | 756 |
10292 | 757 ** The behavior of isreal and isnumeric functions was changed to be more |
758 Matlab-compatible. | |
759 | |
10406 | 760 ** The integer math & conversion warnings (Octave:int-convert-nan, |
761 Octave:int-convert-non-int-val, Octave:int-convert-overflow, | |
11111 | 762 Octave:int-math-overflow) have been removed. |
10406 | 763 |
10453 | 764 ** rem and mod are now built-in functions. They also handle integer |
765 types efficiently using integer arithmetic. | |
10437 | 766 |
10536 | 767 ** Sparse indexing and indexed assignment has been mostly rewritten. |
768 Since Octave uses compressed column storage for sparse matrices, | |
769 major attention is devoted to operations manipulating whole columns. | |
770 Such operations are now significantly faster, as well as some other | |
771 important cases. | |
772 | |
773 Further, it is now possible to pre-allocate a sparse matrix and | |
774 subsequently fill it by assignments, provided they meet certain | |
775 conditions. For more information, consult the `spalloc' function, | |
776 which is no longer a mere dummy. Consequently, nzmax and nnz are no | |
11111 | 777 longer always equal in Octave. Octave may also produce a matrix |
778 with nnz < nzmax as a result of other operations, so you should | |
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779 consistently use nnz unless you really want to use nzmax (i.e., the |
11111 | 780 space allocated for nonzero elements). |
10536 | 781 |
782 Sparse concatenation is also affected, and concatenating sparse | |
783 matrices, especially larger collections, is now significantly more | |
11111 | 784 efficient. This applies to both the [] operator and the |
10536 | 785 cat/vertcat/horzcat functions. |
786 | |
11111 | 787 ** It is now possible to optionally employ the xGESDD LAPACK drivers |
14188 | 788 for computing the singular value decomposition using svd, instead |
11111 | 789 of the default xGESVD, using the configuration pseudo-variable |
790 svd_driver. The xGESDD driver can be up to 6x times faster when | |
791 singular vectors are requested, but is reported to be somewhat less | |
10639 | 792 robust on highly ill-conditioned matrices. |
793 | |
794 ** Configuration pseudo-variables, such as page_screen_output or | |
795 confirm_recursive_rmdir (or the above mentioned svd_driver), now | |
796 accept a "local" option as second argument, requesting the change | |
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797 to be undone when the current function returns: |
10639 | 798 |
799 function [status, msg] = rm_rf (dir) | |
800 confirm_recursive_rmdir (false, "local"); | |
801 [status, msg] = rmdir (dir, "s"); | |
802 ... | |
803 endfunction | |
804 | |
805 Upon return, confirm_recursive_rmdir will be restored to the value | |
806 it had on entry to the function, even if there were subsequent | |
807 changes to the variable in function rm_rf or any of the functions | |
808 it calls. | |
809 | |
11111 | 810 ** pkg now accepts a -forge option for downloading and installing |
811 packages from Octave Forge automatically. For example, | |
10774 | 812 |
813 pkg install -forge general | |
814 | |
11111 | 815 will automatically download the latest release of the general |
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816 package and attempt to install it. No automatic resolving of |
11111 | 817 dependencies is provided. Further, |
10639 | 818 |
10774 | 819 pkg list -forge |
820 | |
821 can be used to list all available packages. | |
822 | |
12418
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823 ** The internal data representation of structs has been completely |
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824 rewritten to make certain optimizations feasible. The field data |
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825 can now be shared between structs with equal keys but different |
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826 dimensions or values, making operations that preserve the fields |
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827 faster. Economized storage is now used for scalar structs (just |
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828 like most other scalars), making their usage more |
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829 memory-efficient. Certain array-like operations on structs |
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|
830 (concatenation, uniform cellfun, num2cell) have gained a |
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831 significant speed-up. Additionally, the octave_scalar_map class |
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832 now provides a simpler interface to work with scalar structs within |
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|
833 a C++ DLD function. |
10639 | 834 |
12418
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|
835 ** Two new formats are available for displaying numbers: |
11111 | 836 |
12418
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|
837 format short eng |
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|
838 format long eng |
11111 | 839 |
12418
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|
840 Both display numbers in engineering notation, i.e., mantissa + |
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|
841 exponent where the exponent is a multiple of 3. |
10776
062304bd692e
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|
842 |
12418
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|
843 ** The following functions are new in Octave 3.4: |
12723
6ed1e0be181e
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|
844 accumdim erfcx nfields pqpnonneg uigetdir |
6ed1e0be181e
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|
845 bitpack fileread nth_element quadcc uigetfile |
6ed1e0be181e
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|
846 bitunpack fminbnd onCleanup randi uiputfile |
6ed1e0be181e
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|
847 blkmm fskipl pbaspect repelems uimenu |
6ed1e0be181e
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848 cbrt ifelse pie3 reset whitebg |
6ed1e0be181e
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|
849 curl ishermitian powerset rsf2csf |
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850 chop isindex ppder saveas |
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851 daspect luupdate ppint strread |
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|
852 divergence merge ppjumps textread |
11109
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853 |
12418
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|
854 ** Using the image function to view images with external programs such |
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855 as display, xv, and xloadimage is no longer supported. The |
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|
856 image_viewer function has also been removed. |
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|
857 |
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858 ** The behavior of struct assignments to non-struct values has been |
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859 changed. Previously, it was possible to overwrite an arbitrary |
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|
860 value: |
11109
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|
861 |
12418
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862 a = 1; |
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863 a.x = 2; |
10873 | 864 |
12418
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865 This is no longer possible unless a is an empty matrix or cell |
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866 array. |
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867 |
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868 ** The dlmread function has been extended to allow specifying a custom |
b914e8125f1b
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869 value for empty fields. |
10829 | 870 |
12418
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871 ** The dlmread and dlmwrite functions have been modified to accept |
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872 file IDs (as returned by fopen) in addition to file names. |
11111 | 873 |
12418
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874 ** Octave can now optimize away the interpreter overhead of an |
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875 anonymous function handle, if the function simply calls another |
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876 function or handle with some of its parameters bound to certain |
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877 values. Example: |
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|
878 |
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|
879 f = @(x) sum (x, 1); |
10966 | 880 |
12418
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881 When f is called, the call is forwarded to @sum with the constant 1 |
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882 appended, and the anonymous function call does not occur on the |
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|
883 call stack. |
10829 | 884 |
12424 | 885 ** For compatibility with Matlab, mu2lin (x) is now equivalent to |
886 mu2lin (x, 0). | |
887 | |
888 ** The new function `history_control' may be used to control the way | |
889 command lines are added to the history list when Octave is using | |
890 readline for command-line editing. For example | |
891 | |
892 history_control ("ignoredups") | |
893 | |
894 tells Octave to avoid adding duplicate lines to the history list. | |
895 | |
896 ** Octave now uses the gnulib library for improved portability and to | |
897 avoid bugs in operating system functions. | |
898 | |
11112
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|
899 ** Deprecated functions. |
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|
900 |
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901 The following functions were deprecated in Octave 3.0 and have been |
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|
902 removed from Octave 3.4. |
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903 |
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904 beta_cdf geometric_pdf pascal_pdf |
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|
905 beta_inv geometric_rnd pascal_rnd |
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906 beta_pdf hypergeometric_cdf poisson_cdf |
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907 beta_rnd hypergeometric_inv poisson_inv |
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908 binomial_cdf hypergeometric_pdf poisson_pdf |
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909 binomial_inv hypergeometric_rnd poisson_rnd |
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910 binomial_pdf intersection polyinteg |
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911 binomial_rnd is_bool setstr |
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912 chisquare_cdf is_complex struct_contains |
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913 chisquare_inv is_list struct_elements |
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914 chisquare_pdf is_matrix t_cdf |
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915 chisquare_rnd is_scalar t_inv |
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916 clearplot is_square t_pdf |
8ea4cf59c41b
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|
917 clg is_stream t_rnd |
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918 com2str is_struct uniform_cdf |
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|
919 exponential_cdf is_symmetric uniform_inv |
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920 exponential_inv is_vector uniform_pdf |
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|
921 exponential_pdf isstr uniform_rnd |
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|
922 exponential_rnd lognormal_cdf weibcdf |
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923 f_cdf lognormal_inv weibinv |
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924 f_inv lognormal_pdf weibpdf |
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925 f_pdf lognormal_rnd weibrnd |
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|
926 f_rnd meshdom weibull_cdf |
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927 gamma_cdf normal_cdf weibull_inv |
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928 gamma_inv normal_inv weibull_pdf |
8ea4cf59c41b
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929 gamma_pdf normal_pdf weibull_rnd |
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930 gamma_rnd normal_rnd wiener_rnd |
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|
931 geometric_cdf pascal_cdf |
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|
932 geometric_inv pascal_inv |
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|
933 |
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934 The following functions were deprecated in Octave 3.2 and will |
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|
935 be removed from Octave 3.6 (or whatever version is the second major |
8ea4cf59c41b
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936 release after 3.2): |
8ea4cf59c41b
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937 |
11390
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
938 create_set spcholinv splu |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
939 dmult spcumprod spmax |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
940 iscommand spcumsum spmin |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
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diff
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|
941 israwcommand spdet spprod |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
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diff
changeset
|
942 lchol spdiag spqr |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
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diff
changeset
|
943 loadimage spfind spsum |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
944 mark_as_command sphcat spsumsq |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
945 mark_as_rawcommand spinv spvcat |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
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|
946 spatan2 spkron str2mat |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
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diff
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|
947 spchol splchol unmark_command |
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
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diff
changeset
|
948 spchol2inv split unmark_rawcommand |
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
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|
949 |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
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|
950 The following functions have been deprecated in Octave 3.4 and will |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
951 be removed from Octave 3.8 (or whatever version is the second major |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
952 release after 3.4): |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
953 |
14354
55bb8c902a4d
maint: Remove deprecated functions from dev branch for next (3.8) release.
Rik <octave@nomad.inbox5.com>
parents:
14294
diff
changeset
|
954 autocor cellidx gammai is_global replot values |
55bb8c902a4d
maint: Remove deprecated functions from dev branch for next (3.8) release.
Rik <octave@nomad.inbox5.com>
parents:
14294
diff
changeset
|
955 autocov dispatch glpkmex krylovb saveimage |
55bb8c902a4d
maint: Remove deprecated functions from dev branch for next (3.8) release.
Rik <octave@nomad.inbox5.com>
parents:
14294
diff
changeset
|
956 betai fstat intwarning perror strerror |
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
957 |
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
958 Summary of important user-visible changes for version 3.2: |
5913 | 959 --------------------------------------------------------- |
2452 | 960 |
8737 | 961 ** Compatibility with Matlab graphics has been improved. |
6329 | 962 |
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Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
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diff
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|
963 The hggroup object and associated listener callback functions have |
8737 | 964 been added allowing the inclusion of group objects. Data sources |
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
965 have been added to these group objects such that |
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
966 |
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
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diff
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|
967 x = 0:0.1:10; |
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
968 y = sin (x); |
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
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diff
changeset
|
969 plot (x, y, "ydatasource", "y"); |
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
970 for i = 1 : 100 |
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
971 pause(0.1) |
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
972 y = sin (x + 0.1 * i); |
14188 | 973 refreshdata (); |
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
974 endfor |
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
975 |
8737 | 976 works as expected. This capability has be used to introduce |
9031
1052a66078cf
Documentation cleanup of top-level Octave directory (READMEs, INSTALL)
Rik <rdrider0-list@yahoo.com>
parents:
8932
diff
changeset
|
977 stem-series, bar-series, etc., objects for better Matlab |
8737 | 978 compatibility. |
979 | |
980 ** New graphics functions: | |
981 | |
11576
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
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|
982 addlistener ezcontour gcbo refresh |
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
983 addproperty ezcontourf ginput refreshdata |
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
984 allchild ezmesh gtext specular |
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
985 available_graphics_toolkits ezmeshc intwarning surfl |
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
986 graphics_toolkit ezplot ishghandle trisurf |
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
987 cla ezplot3 isocolors waitforbuttonpress |
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
988 clabel ezpolar isonormals |
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
989 comet ezsurf isosurface |
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
990 dellistener findall linkprop |
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
991 diffuse gcbf plotmatrix |
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
992 |
8737 | 993 ** New experimental OpenGL/FLTK based plotting system. |
994 | |
995 An experimental plotting system based on OpenGL and the FLTK | |
11576
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
996 toolkit is now part of Octave. This graphics toolkit is disabled by |
8737 | 997 default. You can switch to using it with the command |
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
998 |
11576
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
999 graphics_toolkit ("fltk") |
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1000 |
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1001 for all future figures or for a particular figure with the command |
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1002 |
11576
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
1003 graphics_toolkit (h, "fltk") |
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1004 |
11139 | 1005 where "h" is a valid figure handle. |
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1006 |
8737 | 1007 ** Functions providing direct access to gnuplot have been removed. |
1008 | |
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
1009 The functions __gnuplot_plot__, __gnuplot_set__, __gnuplot_raw__, |
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
1010 __gnuplot_show__, __gnuplot_replot__, __gnuplot_splot__, |
8737 | 1011 __gnuplot_save_data__ and __gnuplot_send_inline_data__ have been |
1012 removed from Octave. These function were incompatible with the | |
1013 high level graphics handle code. | |
6329 | 1014 |
8885 | 1015 ** The Control, Finance and Quaternion functions have been removed. |
1016 | |
1017 These functions are now available as separate packages from | |
1018 | |
1019 http://octave.sourceforge.net/packages.html | |
1020 | |
1021 and can be reinstalled using the Octave package manager (see | |
1022 the pkg function). | |
1023 | |
1024 ** Specific sparse matrix functions removed. | |
1025 | |
1026 The following functions, which handled only sparse matrices have | |
1027 been removed. Instead of calling these functions directly, you | |
1028 should use the corresponding function without the "sp" prefix. | |
8737 | 1029 |
8885 | 1030 spatan2 spcumsum spkron spprod |
1031 spchol spdet splchol spqr | |
1032 spchol2inv spdiag splu spsum | |
1033 spcholinv spfind spmax spsumsqk | |
1034 spcumprod spinv spmin | |
1035 | |
1036 ** Improvements to the debugger. | |
1037 | |
1038 The interactive debugging features have been improved. Stopping | |
1039 on statements with dbstop should work correctly now. Stepping | |
1040 into and over functions, and stepping one statement at a time | |
1041 (with dbstep) now works. Moving up and down the call stack with | |
1042 dbup and dbdown now works. The dbstack function is now available | |
1043 to print the current function call stack. The new dbquit function | |
1044 is available to exit the debugging mode. | |
1045 | |
1046 ** Improved traceback error messages. | |
1047 | |
1048 Traceback error messages are much more concise and easier to | |
1049 understand. They now display information about the function call | |
1050 stack instead of the stack of all statements that were active at | |
1051 the point of the error. | |
8014
44d206ae68c9
improve fsolve compatibility
John W. Eaton <jwe@octave.org>
parents:
7990
diff
changeset
|
1052 |
8737 | 1053 ** Object Oriented Programming. |
8405
d79dfbff2f9d
document new norm features in NEWS
Jaroslav Hajek <highegg@gmail.com>
parents:
8396
diff
changeset
|
1054 |
8737 | 1055 Octave now includes OOP features and the user can create their own |
1056 class objects and overloaded functions and operators. For | |
1057 example, all methods of a class called "myclass" will be found in | |
1058 a directory "@myclass" on the users path. The class specific | |
1059 versions of functions and operators take precedence over the | |
1060 generic versions of these functions. | |
1061 | |
1062 New functions related to OOP include | |
7189 | 1063 |
8737 | 1064 class inferiorto isobject loadobj methods superiorto |
1065 | |
1066 See the Octave manual for more details. | |
7038 | 1067 |
8747 | 1068 ** Parsing of Command-style Functions. |
1069 | |
1070 Octave now parses command-style functions without needing to first | |
1071 declare them with "mark_as_command". The rules for recognizing a | |
1072 command-style function calls are | |
1073 | |
1074 * A command must appear as the first word in a statement, | |
1075 followed by a space. | |
1076 | |
1077 * The first character after the space must not be '=' or '(' | |
1078 | |
1079 * The next token after the space must not look like a binary | |
1080 operator. | |
1081 | |
1082 These rules should be mostly compatible with the way Matlab parses | |
1083 command-style function calls and allow users to define commands in | |
1084 .m files without having to mark them as commands. | |
1085 | |
1086 Note that previous versions of Octave allowed expressions like | |
1087 | |
1088 x = load -text foo.dat | |
1089 | |
1090 but an expression like this will now generate a parse error. In | |
1091 order to assign the value returned by a function to a variable, | |
1092 you must use the normal function call syntax: | |
1093 | |
1094 x = load ("-text", "foo.dat"); | |
1095 | |
8737 | 1096 ** Block comments. |
1097 | |
8747 | 1098 Commented code can be between matching "#{" and "#}" or "%{" and |
1099 "%}" markers, even if the commented code spans several line. This | |
1100 allows blocks code to be commented, without needing to comment | |
1101 each line. For example, | |
5814 | 1102 |
8747 | 1103 function [s, t] = func (x, y) |
1104 s = 2 * x; | |
1105 #{ | |
1106 s *= y; | |
1107 t = y + x; | |
1108 #} | |
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
1109 endfunction |
5814 | 1110 |
8747 | 1111 the lines "s *= y;" and "t = y + x" will not be executed. |
8737 | 1112 |
12400
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
parents:
12224
diff
changeset
|
1113 ** If any subfunction in a file ends with "end" or "endfunction", then |
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
parents:
12224
diff
changeset
|
1114 they all must end that way. Previously, Octave accepted |
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
parents:
12224
diff
changeset
|
1115 |
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1116 function main () |
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
parents:
12224
diff
changeset
|
1117 ... |
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1118 # no endfunction here. |
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1119 function sub () |
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
parents:
12224
diff
changeset
|
1120 ... |
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1121 endfunction |
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1122 |
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1123 but this is no longer allowed. |
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
parents:
12224
diff
changeset
|
1124 |
8737 | 1125 ** Special treatment in the parser of expressions like "a' * b". |
2452 | 1126 |
8737 | 1127 In these cases the transpose is no longer explicitly formed and |
1128 BLAS libraries are called with the transpose flagged, | |
1129 significantly improving performance for these kinds of | |
1130 operations. | |
8417
654bcfb937bf
Add the eigs and svds functions
David Bateman <dbateman@free.fr>
parents:
8405
diff
changeset
|
1131 |
8737 | 1132 ** Single Precision data type. |
2452 | 1133 |
8737 | 1134 Octave now includes a single precision data type. Single |
1135 precision variables can be created with the "single" command, or | |
9034
52515efc50c0
Documentation cleanup on NEWS file
Rik <rdrider0-list@yahoo.com>
parents:
9031
diff
changeset
|
1136 from functions like ones, eye, etc. For example, |
5995 | 1137 |
8737 | 1138 single (1) |
1139 ones (2, 2, "single") | |
1140 zeros (2, 2, "single") | |
1141 eye (2, 2, "single") | |
1142 Inf (2, 2, "single") | |
1143 NaN (2, 2, "single") | |
1144 NA (2, 2, "single") | |
7279 | 1145 |
8737 | 1146 all create single precision variables. For compatibility with |
1147 Matlab, mixed double/single precision operators and functions | |
1148 return single precision types. | |
1149 | |
1150 As a consequence of this addition to Octave the internal | |
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
1151 representation of the double precision NA value has changed, and |
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
1152 so users that make use of data generated by Octave with R or |
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
1153 visa-versa are warned that compatibility might not be assured. |
7279 | 1154 |
8737 | 1155 ** Improved array indexing. |
1156 | |
1157 The underlying code used for indexing of arrays has been | |
9034
52515efc50c0
Documentation cleanup on NEWS file
Rik <rdrider0-list@yahoo.com>
parents:
9031
diff
changeset
|
1158 completely rewritten and indexing is now significantly faster. |
8737 | 1159 |
8755 | 1160 ** Improved memory management. |
1161 | |
1162 Octave will now attempt to share data in some cases where previously | |
1163 a copy would be made, such as certain array slicing operations or | |
9031
1052a66078cf
Documentation cleanup of top-level Octave directory (READMEs, INSTALL)
Rik <rdrider0-list@yahoo.com>
parents:
8932
diff
changeset
|
1164 conversions between cells, structs and cs-lists. This usually reduces |
8755 | 1165 both time and memory consumption. |
9128 | 1166 Also, Octave will now attempt to detect and optimize usage of a vector |
1167 as a stack, when elements are being repeatedly inserted at/removed from | |
1168 the end of the vector. | |
8755 | 1169 |
8738 | 1170 ** Improved performance for reduction operations. |
1171 | |
8755 | 1172 The performance of the sum, prod, sumsq, cumsum, cumprod, any, all, |
1173 max and min functions has been significantly improved. | |
8738 | 1174 |
9006 | 1175 ** Sorting and searching. |
1176 | |
1177 The performance of sort has been improved, especially when sorting | |
10453 | 1178 indices are requested. An efficient built-in issorted |
1179 implementation was added. The sortrows function now uses a more | |
12702
013cd94d8d7f
doc: Spelling fixes for various documentation files
John Bradshaw <john@johnbradshaw.org>
parents:
12698
diff
changeset
|
1180 efficient algorithm, especially in the homogeneous case. The lookup |
10453 | 1181 function is now a built-in function performing a binary search, |
1182 optimized for long runs of close elements. Lookup also works with | |
1183 cell arrays of strings. | |
9006 | 1184 |
1185 ** Range arithmetics | |
1186 | |
10453 | 1187 For some operations on ranges, Octave will attempt to keep the |
1188 result as a range. These include negation, adding a scalar, | |
14093
050bc580cb60
doc: Various docstring improvements before 3.6.0 release.
Rik <octave@nomad.inbox5.com>
parents:
14082
diff
changeset
|
1189 subtracting a scalar, and multiplying by a scalar. Ranges with zero |
10453 | 1190 increment are allowed and can be constructed using the built-in |
1191 function `ones'. | |
9006 | 1192 |
1193 ** Various performance improvements. | |
1194 | |
10453 | 1195 Performance of a number of other built-in operations and functions |
1196 was improved, including: | |
9006 | 1197 |
1198 * logical operations | |
1199 * comparison operators | |
1200 * element-wise power | |
1201 * accumarray | |
1202 * cellfun | |
1203 * isnan | |
1204 * isinf | |
1205 * isfinite | |
1206 * nchoosek | |
1207 * repmat | |
1208 * strcmp | |
1209 | |
8737 | 1210 ** 64-bit integer arithmetic. |
1211 | |
1212 Arithmetic with 64-bit integers (int64 and uint64 types) is fully | |
1213 supported, with saturation semantics like the other integer types. | |
1214 Performance of most integer arithmetic operations has been | |
1215 improved by using integer arithmetic directly. Previously, Octave | |
1216 performed integer math with saturation semantics by converting the | |
1217 operands to double precision, performing the operation, and then | |
1218 converting the result back to an integer value, truncating if | |
1219 necessary. | |
1220 | |
8885 | 1221 ** Diagonal and permutation matrices. |
1222 | |
1223 The interpreter can now treat diagonal and permutation matrices as | |
1224 special objects that store only the non-zero elements, rather than | |
1225 general full matrices. Therefore, it is now possible to construct | |
1226 and use these matrices in linear algebra without suffering a | |
1227 performance penalty due to storing large numbers of zero elements. | |
1228 | |
1229 ** Improvements to fsolve. | |
1230 | |
1231 The fsolve function now accepts an option structure argument (see | |
1232 also the optimset function). The INFO values returned from fsolve | |
1233 have changed to be compatible with Matlab's fsolve function. | |
1234 Additionally, fsolve is now able to solve overdetermined systems, | |
1235 complex-differentiable complex systems, systems with a sparse | |
1236 jacobian and can work in single precision if given single precision | |
9031
1052a66078cf
Documentation cleanup of top-level Octave directory (READMEs, INSTALL)
Rik <rdrider0-list@yahoo.com>
parents:
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changeset
|
1237 inputs. It can also be called recursively. |
8885 | 1238 |
8737 | 1239 ** Improvements to the norm function. |
1240 | |
1241 The norm function is now able to compute row or column norms of a | |
1242 matrix in a single call, as well as general matrix p-norms. | |
1243 | |
1244 ** New functions for computing some eigenvalues or singular values. | |
1245 | |
1246 The eigs and svds functions have been included in Octave. These | |
1247 functions require the ARPACK library (now distributed under a | |
1248 GPL-compatible license). | |
1249 | |
1250 ** New QR and Cholesky factorization updating functions. | |
8370
34960ba08a81
document more new features in the NEWS file
Jaroslav Hajek <highegg@gmail.com>
parents:
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|
1251 |
8737 | 1252 choldelete cholshift qrdelete qrshift |
1253 cholinsert cholupdate qrinsert qrupdate | |
1254 | |
1255 ** New quadrature functions. | |
1256 | |
1257 dblquad quadgk quadv triplequad | |
1258 | |
8885 | 1259 ** New functions for reading and writing images. |
1260 | |
1261 The imwrite and imread functions have been included in Octave. | |
1262 These functions require the GraphicsMagick library. The new | |
1263 function imfinfo provides information about an image file (size, | |
1264 type, colors, etc.) | |
1265 | |
9215
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allow multiple input event hook functions to be installed simultaneously
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|
1266 ** The input_event_hook function has been replaced by the pair of |
1500d0197484
allow multiple input event hook functions to be installed simultaneously
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|
1267 functions add_input_event_hook and remove_input_event_hook so that |
1500d0197484
allow multiple input event hook functions to be installed simultaneously
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1268 more than one hook function may be installed at a time. |
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|
1269 |
8737 | 1270 ** Other miscellaneous new functions. |
8370
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|
1271 |
8932
2d0f8692a82e
Add the 'histc' function
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1272 addtodate hypot reallog |
2d0f8692a82e
Add the 'histc' function
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1273 bicgstab idivide realpow |
9006 | 1274 cellslices info realsqrt |
1275 cgs interp1q rectint | |
1276 command_line_path isdebugmode regexptranslate | |
1277 contrast isfloat restoredefaultpath | |
1278 convn isstrprop roundb | |
1279 cummin log1p rundemos | |
1280 cummax lsqnonneg runlength | |
1281 datetick matlabroot saveobj | |
1282 display namelengthmax spaugment | |
1283 expm1 nargoutchk strchr | |
1284 filemarker pathdef strvcat | |
1285 fstat perl subspace | |
1286 full prctile symvar | |
1287 fzero quantile treelayout | |
1288 genvarname re_read_readline_init_file validatestring | |
1289 histc | |
8370
34960ba08a81
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|
1290 |
8885 | 1291 ** Changes to strcat. |
1292 | |
1293 The strcat function is now compatible with Matlab's strcat | |
1294 function, which removes trailing whitespace when concatenating | |
1295 character strings. For example | |
1296 | |
1297 strcat ('foo ', 'bar') | |
1298 ==> 'foobar' | |
1299 | |
1300 The new function cstrcat provides the previous behavior of | |
1301 Octave's strcat. | |
1302 | |
1303 ** Improvements to the help functions. | |
1304 | |
9034
52515efc50c0
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1305 The help system has been mostly re-implemented in .m files to make |
8885 | 1306 it easier to modify. Performance of the lookfor function has been |
1307 greatly improved by caching the help text from all functions that | |
1308 are distributed with Octave. The pkg function has been modified | |
1309 to generate cache files for external packages when they are | |
1310 installed. | |
1311 | |
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mark create_set as deprecated in 3.2, not 3.0
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1312 ** Deprecated functions. |
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1313 |
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|
1314 The following functions were deprecated in Octave 3.0 and will be |
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list deprecated and removed functions in NEWS file
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1315 removed from Octave 3.4 (or whatever version is the second major |
8888
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1316 release after 3.0): |
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|
1317 |
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1318 beta_cdf geometric_pdf pascal_pdf |
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1319 beta_inv geometric_rnd pascal_rnd |
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list deprecated and removed functions in NEWS file
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|
1320 beta_pdf hypergeometric_cdf poisson_cdf |
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list deprecated and removed functions in NEWS file
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|
1321 beta_rnd hypergeometric_inv poisson_inv |
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|
1322 binomial_cdf hypergeometric_pdf poisson_pdf |
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list deprecated and removed functions in NEWS file
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changeset
|
1323 binomial_inv hypergeometric_rnd poisson_rnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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changeset
|
1324 binomial_pdf intersection polyinteg |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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|
1325 binomial_rnd is_bool setstr |
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|
1326 chisquare_cdf is_complex struct_contains |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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|
1327 chisquare_inv is_list struct_elements |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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changeset
|
1328 chisquare_pdf is_matrix t_cdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1329 chisquare_rnd is_scalar t_inv |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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|
1330 clearplot is_square t_pdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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|
1331 clg is_stream t_rnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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|
1332 com2str is_struct uniform_cdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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1333 exponential_cdf is_symmetric uniform_inv |
8ea4cf59c41b
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1334 exponential_inv is_vector uniform_pdf |
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1335 exponential_pdf isstr uniform_rnd |
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1336 exponential_rnd lognormal_cdf weibcdf |
8ea4cf59c41b
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1337 f_cdf lognormal_inv weibinv |
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|
1338 f_inv lognormal_pdf weibpdf |
8ea4cf59c41b
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1339 f_pdf lognormal_rnd weibrnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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|
1340 f_rnd meshdom weibull_cdf |
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list deprecated and removed functions in NEWS file
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|
1341 gamma_cdf normal_cdf weibull_inv |
8ea4cf59c41b
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|
1342 gamma_inv normal_inv weibull_pdf |
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|
1343 gamma_pdf normal_pdf weibull_rnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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|
1344 gamma_rnd normal_rnd wiener_rnd |
8888
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|
1345 geometric_cdf pascal_cdf |
0c7b0049c023
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|
1346 geometric_inv pascal_inv |
0c7b0049c023
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1347 |
0c7b0049c023
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|
1348 The following functions are now deprecated in Octave 3.2 and will |
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1349 be removed from Octave 3.6 (or whatever version is the second major |
8888
0c7b0049c023
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|
1350 release after 3.2): |
0c7b0049c023
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1351 |
0c7b0049c023
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|
1352 create_set spcholinv spmax |
0c7b0049c023
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|
1353 dmult spcumprod spmin |
0c7b0049c023
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|
1354 iscommand spcumsum spprod |
0c7b0049c023
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1355 israwcommand spdet spqr |
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|
1356 lchol spdiag spsum |
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1357 loadimage spfind spsumsq |
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1358 mark_as_command spinv str2mat |
0c7b0049c023
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|
1359 mark_as_rawcommand spkron unmark_command |
0c7b0049c023
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|
1360 spatan2 splchol unmark_rawcommand |
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|
1361 spchol split |
0c7b0049c023
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|
1362 spchol2inv splu |
0c7b0049c023
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|
1363 |
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
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|
1364 See NEWS.3 for old news. |