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annotate NEWS @ 8749:5a7494ee68a3
liboctave/cmd-edit.cc, src/input.cc: use fputs instead of fprintf
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Mon, 16 Feb 2009 01:41:06 -0500 |
| parents | 86cfcf133a19 |
| children | 59c0fde890a0 |
| rev | line source |
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Initial update of NEWS for 3.2 release
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1 Summary of important user-visible changes for version 3.2: |
| 5913 | 2 --------------------------------------------------------- |
| 2452 | 3 |
| 8737 | 4 ** Compatibility with Matlab graphics has been improved. |
| 6329 | 5 |
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6 The hggroup object and associated listener callback functions have |
| 8737 | 7 been added allowing the inclusion of group objects. Data sources |
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8 have been added to these group objects such that |
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9 |
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10 x = 0:0.1:10; |
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11 y = sin (x); |
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12 plot (x, y, "ydatasource", "y"); |
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13 for i = 1 : 100 |
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14 pause(0.1) |
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15 y = sin (x + 0.1 * i); |
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16 refreshdata(); |
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17 endfor |
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18 |
| 8737 | 19 works as expected. This capability has be used to introduce |
| 20 stem-series, bar-series, etc. objects for better Matlab | |
| 21 compatibility. | |
| 22 | |
| 23 ** New graphics functions: | |
| 24 | |
| 8747 | 25 addlistener diffuse ezsurfc plotmatrix |
| 26 addproperty ezcontour findall refresh | |
| 27 allchild ezcontourf gcbf refreshdata | |
| 28 available_backends ezmesh gcbo specular | |
| 29 backend ezmeshc ginput surfl | |
| 30 cla ezplot gtext waitforbuttonpress | |
| 31 clabel ezplot3 intwarning | |
| 32 comet ezpolar ishghandle | |
| 33 dellistener ezsurf linkprop | |
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34 |
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35 ** Improvements to the debugger. |
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36 |
| 8737 | 37 The interactive debugging features have been improved. Stopping |
| 38 on statements with dbstop should work correctly now. Stepping | |
| 39 into and over functions, and stepping one statement at a time | |
| 40 (with dbstep) now works. Moving up and down the call stack with | |
| 41 dbup and dbdown now works. The dbstack function is now available | |
| 42 to print the current function call stack. The new dbquit function | |
| 43 is available to exit the debugging mode. | |
| 44 | |
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45 ** Improved traceback error messages. |
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46 |
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47 Traceback error messages are much more concise and easier to |
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48 understand. They now display information about the function call |
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49 stack instead of the stack of all statements that were active at |
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50 the point of the error. |
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51 |
| 8737 | 52 ** New experimental OpenGL/FLTK based plotting system. |
| 53 | |
| 54 An experimental plotting system based on OpenGL and the FLTK | |
| 55 toolkit is now part of Octave. This backend is disabled by | |
| 56 default. You can switch to using it with the command | |
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57 |
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58 backend ("fltk") |
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59 |
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60 for all future figures or for a particular figure with the command |
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61 |
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62 backend (h, "fltk") |
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63 |
| 8737 | 64 where "h" is a valid figure handle. Please note that this backend |
| 65 does not yet support text objects. Obviously, this is a necessary | |
| 66 feature before it can be considered usable. We are looking for | |
| 67 volunteers to help implement this missing feature. | |
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68 |
| 8737 | 69 ** Functions providing direct access to gnuplot have been removed. |
| 70 | |
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71 The functions __gnuplot_plot__, __gnuplot_set__, __gnuplot_raw__, |
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72 __gnuplot_show__, __gnuplot_replot__, __gnuplot_splot__, |
| 8737 | 73 __gnuplot_save_data__ and __gnuplot_send_inline_data__ have been |
| 74 removed from Octave. These function were incompatible with the | |
| 75 high level graphics handle code. | |
| 6329 | 76 |
| 8737 | 77 ** Improvements to fsolve. |
| 78 | |
| 79 The fsolve function now accepts an option structure argument (see | |
| 80 also the optimset function). The INFO values returned from fsolve | |
| 81 have changed to be compatible with Matlab's fsolve function. | |
| 8396 | 82 Additionally, fsolve is now able to solve overdetermined systems. |
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83 |
| 8737 | 84 ** Object Oriented Programming. |
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85 |
| 8737 | 86 Octave now includes OOP features and the user can create their own |
| 87 class objects and overloaded functions and operators. For | |
| 88 example, all methods of a class called "myclass" will be found in | |
| 89 a directory "@myclass" on the users path. The class specific | |
| 90 versions of functions and operators take precedence over the | |
| 91 generic versions of these functions. | |
| 92 | |
| 93 New functions related to OOP include | |
| 7189 | 94 |
| 8737 | 95 class inferiorto isobject loadobj methods superiorto |
| 96 | |
| 97 See the Octave manual for more details. | |
| 7038 | 98 |
| 8747 | 99 ** Parsing of Command-style Functions. |
| 100 | |
| 101 Octave now parses command-style functions without needing to first | |
| 102 declare them with "mark_as_command". The rules for recognizing a | |
| 103 command-style function calls are | |
| 104 | |
| 105 * A command must appear as the first word in a statement, | |
| 106 followed by a space. | |
| 107 | |
| 108 * The first character after the space must not be '=' or '(' | |
| 109 | |
| 110 * The next token after the space must not look like a binary | |
| 111 operator. | |
| 112 | |
| 113 These rules should be mostly compatible with the way Matlab parses | |
| 114 command-style function calls and allow users to define commands in | |
| 115 .m files without having to mark them as commands. | |
| 116 | |
| 117 Note that previous versions of Octave allowed expressions like | |
| 118 | |
| 119 x = load -text foo.dat | |
| 120 | |
| 121 but an expression like this will now generate a parse error. In | |
| 122 order to assign the value returned by a function to a variable, | |
| 123 you must use the normal function call syntax: | |
| 124 | |
| 125 x = load ("-text", "foo.dat"); | |
| 126 | |
| 8737 | 127 ** Block comments. |
| 128 | |
| 8747 | 129 Commented code can be between matching "#{" and "#}" or "%{" and |
| 130 "%}" markers, even if the commented code spans several line. This | |
| 131 allows blocks code to be commented, without needing to comment | |
| 132 each line. For example, | |
| 5814 | 133 |
| 8747 | 134 function [s, t] = func (x, y) |
| 135 s = 2 * x; | |
| 136 #{ | |
| 137 s *= y; | |
| 138 t = y + x; | |
| 139 #} | |
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140 endfunction |
| 5814 | 141 |
| 8747 | 142 the lines "s *= y;" and "t = y + x" will not be executed. |
| 8737 | 143 |
| 144 ** The Control, Finance and Quaternion functions have been removed. | |
| 145 | |
| 146 These functions are now available as separate packages from | |
| 147 | |
| 148 http://octave.sourceforge.net/packages.html | |
| 2452 | 149 |
| 8737 | 150 and can be reinstalled using the Octave package manager (see |
| 151 the pkg function). | |
| 152 | |
| 153 ** Special treatment in the parser of expressions like "a' * b". | |
| 2452 | 154 |
| 8737 | 155 In these cases the transpose is no longer explicitly formed and |
| 156 BLAS libraries are called with the transpose flagged, | |
| 157 significantly improving performance for these kinds of | |
| 158 operations. | |
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159 |
| 8737 | 160 ** Single Precision data type. |
| 2452 | 161 |
| 8737 | 162 Octave now includes a single precision data type. Single |
| 163 precision variables can be created with the "single" command, or | |
| 164 from function like ones, etc. For example | |
| 5995 | 165 |
| 8737 | 166 single (1) |
| 167 ones (2, 2, "single") | |
| 168 zeros (2, 2, "single") | |
| 169 eye (2, 2, "single") | |
| 170 Inf (2, 2, "single") | |
| 171 NaN (2, 2, "single") | |
| 172 NA (2, 2, "single") | |
| 7279 | 173 |
| 8737 | 174 all create single precision variables. For compatibility with |
| 175 Matlab, mixed double/single precision operators and functions | |
| 176 return single precision types. | |
| 177 | |
| 178 As a consequence of this addition to Octave the internal | |
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179 representation of the double precision NA value has changed, and |
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180 so users that make use of data generated by Octave with R or |
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181 visa-versa are warned that compatibility might not be assured. |
| 7279 | 182 |
| 8737 | 183 ** Improved array indexing. |
| 184 | |
| 185 The underlying code used for indexing of arrays has been | |
| 186 completely rewritten and so the indexing of arrays is now | |
| 187 significantly faster. | |
| 188 | |
| 8738 | 189 ** Improved performance for reduction operations. |
| 190 | |
| 191 The performance of the sum, prod, sumsq, cumsum, and cumprod | |
| 192 functions has been significantly improved. | |
| 193 | |
| 8737 | 194 ** Diagonal and permutation matrices. |
| 195 | |
| 196 The interpreter can now treat diagonal and permutation matrices as | |
| 197 special objects that store only the non-zero elements, rather than | |
| 198 general full matrices. Therefore, it is now possible to construct | |
| 199 and use these matrices in linear algebra without suffering a | |
| 200 performance penalty due to storing large numbers of zero elements. | |
| 201 | |
| 202 ** 64-bit integer arithmetic. | |
| 203 | |
| 204 Arithmetic with 64-bit integers (int64 and uint64 types) is fully | |
| 205 supported, with saturation semantics like the other integer types. | |
| 206 Performance of most integer arithmetic operations has been | |
| 207 improved by using integer arithmetic directly. Previously, Octave | |
| 208 performed integer math with saturation semantics by converting the | |
| 209 operands to double precision, performing the operation, and then | |
| 210 converting the result back to an integer value, truncating if | |
| 211 necessary. | |
| 212 | |
| 213 ** Improvements to the norm function. | |
| 214 | |
| 215 The norm function is now able to compute row or column norms of a | |
| 216 matrix in a single call, as well as general matrix p-norms. | |
| 217 | |
| 218 ** New functions for reading and writing images. | |
| 219 | |
| 220 The imwrite and imread function have been included in Octave. | |
| 221 These functions require the GraphicsMagick library. The new | |
| 222 function imfinfo provides information about an image file (size, | |
| 223 type, colors, etc.) | |
| 224 | |
| 225 ** New functions for computing some eigenvalues or singular values. | |
| 226 | |
| 227 The eigs and svds functions have been included in Octave. These | |
| 228 functions require the ARPACK library (now distributed under a | |
| 229 GPL-compatible license). | |
| 230 | |
| 231 ** Changes to strcat. | |
| 8292 | 232 |
| 8737 | 233 The strcat function is now compatible with Matlab's strcat |
| 234 function, which removes trailing whitespace when concatenating | |
| 235 character strings. For example | |
| 236 | |
| 237 strcat ('foo ', 'bar') | |
| 238 ==> 'foobar' | |
| 239 | |
| 240 The new function cstrcat provides the previous behavior of | |
| 241 Octave's strcat. | |
| 242 | |
| 243 ** Specific sparse matrix functions removed. | |
| 244 | |
| 245 The following functions, which handled only sparse matrices have | |
| 246 been removed. Instead of calling these functions directly, you | |
| 247 should use the corresponding function without the "sp" prefix. | |
| 248 | |
| 249 spatan2 spcumsum spkron spprod | |
| 250 spchol spdet splchol spqr | |
| 251 spchol2inv spdiag splu spsum | |
| 252 spcholinv spfind spmax spsumsqk | |
| 253 spcumprod spinv spmin | |
| 254 | |
| 255 ** New QR and Cholesky factorization updating functions. | |
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256 |
| 8737 | 257 choldelete cholshift qrdelete qrshift |
| 258 cholinsert cholupdate qrinsert qrupdate | |
| 259 | |
| 260 ** New quadrature functions. | |
| 261 | |
| 262 dblquad quadgk quadv triplequad | |
| 263 | |
| 264 ** Other miscellaneous new functions. | |
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265 |
| 8747 | 266 addtodate info realpow |
| 267 bicgstab interp1q realsqrt | |
| 268 cgs isdebugmode rectint | |
| 269 command_line_path isfloat regexptranslate | |
| 270 contrast isstrprop restoredefaultpath | |
| 271 convn log1p roundb | |
| 272 datetick lsqnonneg rundemos | |
| 273 display matlabroot runlength | |
| 274 expm1 namelengthmax saveobj | |
| 275 filemarker nargoutchk spaugment | |
| 276 fstat pathdef strchr | |
| 277 full perl strvcat | |
| 278 fzero prctile subspace | |
| 279 genvarname quantile symvar | |
| 280 hypot re_read_readline_init_file treelayout | |
| 281 idivide reallog validatestring | |
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282 |
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283 See NEWS.3 for old news. |