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annotate pages/NEWS-3.6.md @ 271:3ce19581b946
LICENSE: Add "GPL-3.0-or-later" for code
| author | Kai Torben Ohlhus <k.ohlhus@gmail.com> |
|---|---|
| date | Mon, 21 Feb 2022 17:32:38 +0900 |
| parents | e69093ab4992 |
| children |
| rev | line source |
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| 215 | 1 --- |
| 2 layout: page | |
| 3 title: GNU Octave Version 3.6 | |
| 4 permalink: NEWS-3.6.html | |
| 5 --- | |
| 6 | |
| 7 ## Summary of important user-visible changes | |
| 8 | |
| 9 January 15, 2012 | |
| 10 | |
| 11 {% include release_news_select.md %} | |
| 12 | |
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13 {::options parse_block_html="true" /} |
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14 <div class="panel callout"> |
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15 * TOC |
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16 {:toc} |
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17 </div> |
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18 {::options parse_block_html="false" /} |
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19 |
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| 215 | 21 <pre> |
| 22 ** The PCRE library is now required to build Octave. If a pre-compiled | |
| 23 package does not exist for your system, you can find PCRE sources | |
| 24 at http://www.pcre.org | |
| 25 | |
| 26 ** The ARPACK library is no longer distributed with Octave. | |
| 27 If you need the eigs or svds functions you must provide an | |
| 28 external ARPACK through a package manager or by compiling it | |
| 29 yourself. If a pre-compiled package does not exist for your system, | |
| 30 you can find the current ARPACK sources at | |
| 31 http://forge.scilab.org/index.php/p/arpack-ng | |
| 32 | |
| 33 ** Many of Octave's binary operators (.*, .^, +, -, ...) now perform | |
| 34 automatic broadcasting for array operations which allows you to use | |
| 35 operator notation instead of calling bsxfun or expanding arrays (and | |
| 36 unnecessarily wasting memory) with repmat or similar idioms. For | |
| 37 example, to scale the columns of a matrix by the elements of a row | |
| 38 vector, you may now write | |
| 39 | |
| 40 rv .* M | |
| 41 | |
| 42 In this expression, the number of elements of rv must match the | |
| 43 number of columns of M. The following operators are affected: | |
| 44 | |
| 45 plus + .+ | |
| 46 minus - .- | |
| 47 times .* | |
| 48 rdivide ./ | |
| 49 ldivide .\ | |
| 50 power .^ .** | |
| 51 lt < | |
| 52 le <= | |
| 53 eq == | |
| 54 gt > | |
| 55 ge >= | |
| 56 ne != ~= | |
| 57 and & | |
| 58 or | | |
| 59 atan2 | |
| 60 hypot | |
| 61 max | |
| 62 min | |
| 63 mod | |
| 64 rem | |
| 65 xor | |
| 66 | |
| 67 additionally, since the A op= B assignment operators are equivalent | |
| 68 to A = A op B, the following operators are also affected: | |
| 69 | |
| 70 += -= .+= .-= .*= ./= .\= .^= .**= &= |= | |
| 71 | |
| 72 See the "Broadcasting" section in the new "Vectorization and Faster | |
| 73 Code Execution" chapter of the manual for more details. | |
| 74 | |
| 75 ** Octave now features a profiler, thanks to the work of Daniel Kraft | |
| 76 under the Google Summer of Code mentorship program. The manual has | |
| 77 been updated to reflect this addition. The new user-visible | |
| 78 functions are profile, profshow, and profexplore. | |
| 79 | |
| 80 ** Overhaul of statistical distribution functions | |
| 81 | |
| 82 Functions now return "single" outputs for inputs of class "single". | |
| 83 | |
| 84 75% reduction in memory usage through use of logical indexing. | |
| 85 | |
| 86 Random sample functions now use the same syntax as rand and accept | |
| 87 a comma separated list of dimensions or a dimension vector. | |
| 88 | |
| 89 Functions have been made Matlab-compatible with regard to special | |
| 90 cases (probability on boundaries, probabilities for values outside | |
| 91 distribution, etc.). This may cause subtle changes to existing | |
| 92 scripts. | |
| 93 | |
| 94 negative binomial function has been extended to real, non-integer | |
| 95 inputs. The discrete_inv function now returns v(1) for 0 instead of | |
| 96 NaN. The nbincdf function has been recoded to use a closed form | |
| 97 solution with betainc. | |
| 98 | |
| 99 ** strread, textscan, and textread have been completely revamped. | |
| 100 | |
| 101 They now support nearly all Matlab functionality including: | |
| 102 | |
| 103 * Matlab-compatible whitespace and delimiter defaults | |
| 104 | |
| 105 * Matlab-compatible options: 'whitespace', treatasempty', format | |
| 106 string repeat count, user-specified comment style, uneven-length | |
| 107 output arrays, %n and %u conversion specifiers (provisionally) | |
| 108 | |
| 109 ** All .m string functions have been modified for better performance or | |
| 110 greater Matlab compatibility. Performance gains of 15X-30X have | |
| 111 been demonstrated. Operations on cell array of strings no longer pay | |
| 112 quite as high a penalty as those on 2-D character arrays. | |
| 113 | |
| 114 deblank: Now requires character or cellstr input. | |
| 115 | |
| 116 strtrim: Now requires character or cellstr input. | |
| 117 No longer trims nulls ("\0") from string for Matlab | |
| 118 compatibility. | |
| 119 | |
| 120 strmatch: Follows documentation precisely and ignores trailing spaces | |
| 121 in pattern and in string. Note that this is documented | |
| 122 Matlab behavior but the implementation apparently does | |
| 123 not always follow it. | |
| 124 | |
| 125 substr: Now possible to specify a negative LEN option which | |
| 126 extracts to within LEN of the end of the string. | |
| 127 | |
| 128 strtok: Now accepts cellstr input. | |
| 129 | |
| 130 base2dec, bin2dec, hex2dec: | |
| 131 Now accept cellstr inputs. | |
| 132 | |
| 133 dec2base, dec2bin, dec2hex: | |
| 134 Now accept cellstr inputs. | |
| 135 | |
| 136 index, rindex: | |
| 137 Now accept 2-D character array input. | |
| 138 | |
| 139 strsplit: Now accepts 2-D character array input. | |
| 140 | |
| 141 ** Geometry functions derived from Qhull (convhull, delaunay, voronoi) | |
| 142 have been revamped. The options passed to the underlying qhull | |
| 143 command have been changed for better results or for Matlab | |
| 144 compatibility. | |
| 145 | |
| 146 convhull: Default options are "Qt" for 2D, 3D, 4D inputs | |
| 147 Default options are "Qt Qx" for 5D and higher | |
| 148 | |
| 149 delaunay: Default options are "Qt Qbb Qc Qz" for 2D and 3D inputs | |
| 150 Default options are "Qt Qbb Qc Qx" for 4D and higher | |
| 151 | |
| 152 voronoi: No default arguments | |
| 153 | |
| 154 ** Date/Time functions updated. Millisecond support with FFF format | |
| 155 string now supported. | |
| 156 | |
| 157 datestr: Numerical formats 21, 22, 29 changed to match Matlab. | |
| 158 Now accepts cellstr input. | |
| 159 | |
| 160 ** The following warning IDs have been removed: | |
| 161 | |
| 162 Octave:associativity-change | |
| 163 Octave:complex-cmp-ops | |
| 164 Octave:empty-list-elements | |
| 165 Octave:fortran-indexing | |
| 166 Octave:precedence-change | |
| 167 | |
| 168 ** The warning ID Octave:string-concat has been renamed to | |
| 169 Octave:mixed-string-concat. | |
| 170 | |
| 171 ** Octave now includes the following Matlab-compatible preference | |
| 172 functions: | |
| 173 | |
| 174 addpref getpref ispref rmpref setpref | |
| 175 | |
| 176 ** The following Matlab-compatible handle graphics functions have been | |
| 177 added: | |
| 178 | |
| 179 guidata uipanel uitoolbar | |
| 180 guihandles uipushtool uiwait | |
| 181 uicontextmenu uiresume waitfor | |
| 182 uicontrol uitoggletool | |
| 183 | |
| 184 The uiXXX functions above are experimental. | |
| 185 | |
| 186 Except for uiwait and uiresume, the uiXXX functions are not | |
| 187 supported with the FLTK+OpenGL graphics toolkit. | |
| 188 | |
| 189 The gnuplot graphics toolkit does not support any of the uiXXX | |
| 190 functions nor the waitfor function. | |
| 191 | |
| 192 ** New keyword parfor (parallel for loop) is now recognized as a valid | |
| 193 keyword. Implementation, however, is still mapped to an ordinary | |
| 194 for loop. | |
| 195 | |
| 196 ** Other new functions added in 3.6.0: | |
| 197 | |
| 198 bicg nthargout usejava | |
| 199 is_dq_string narginchk waitbar | |
| 200 is_sq_string python zscore | |
| 201 is_function_handle register_graphics_toolkit | |
| 202 loaded_graphics_toolkits recycle | |
| 203 | |
| 204 ** Deprecated functions. | |
| 205 | |
| 206 The following functions were deprecated in Octave 3.2 and have been | |
| 207 removed from Octave 3.6. | |
| 208 | |
| 209 create_set spcholinv splu | |
| 210 dmult spcumprod spmax | |
| 211 iscommand spcumsum spmin | |
| 212 israwcommand spdet spprod | |
| 213 lchol spdiag spqr | |
| 214 loadimage spfind spsum | |
| 215 mark_as_command sphcat spsumsq | |
| 216 mark_as_rawcommand spinv spvcat | |
| 217 spatan2 spkron str2mat | |
| 218 spchol splchol unmark_command | |
| 219 spchol2inv split unmark_rawcommand | |
| 220 | |
| 221 The following functions have been deprecated in Octave 3.6 and will | |
| 222 be removed from Octave 3.10 (or whatever version is the second major | |
| 223 release after 3.6): | |
| 224 | |
| 225 cut is_duplicate_entry | |
| 226 cor polyderiv | |
| 227 corrcoef shell_cmd | |
| 228 __error_text__ studentize | |
| 229 error_text sylvester_matrix | |
| 230 </pre> |