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annotate NEWS @ 12803:b7a6a3644f3b
codesprint: Deprecate polyderiv.m
* deprecate/module.mk, polynomial/module.mk, polyder.m, polyderiv.m: Deprecate
polyderiv.m
author | Rik <octave@nomad.inbox5.com> |
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date | Sat, 16 Jul 2011 10:56:19 -0700 |
parents | 71265f725b11 |
children | cad4cba03f19 |
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1 Summary of important user-visible changes for version 3.6: |
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2 --------------------------------------------------------- |
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3 |
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4 ** The PCRE library is now required to build Octave. |
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5 |
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6 ** New functions added. |
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7 |
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8 iscolumn |
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9 issrow |
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10 zscore |
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11 |
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12 ** Deprecated functions. |
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13 |
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14 The following functions were deprecated in Octave 3.2 and have been |
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15 removed from Octave 3.6. |
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16 |
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17 create_set spcholinv splu |
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18 dmult spcumprod spmax |
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19 iscommand spcumsum spmin |
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20 israwcommand spdet spprod |
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21 lchol spdiag spqr |
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22 loadimage spfind spsum |
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23 mark_as_command sphcat spsumsq |
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24 mark_as_rawcommand spinv spvcat |
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25 spatan2 spkron str2mat |
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26 spchol splchol unmark_command |
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27 spchol2inv split unmark_rawcommand |
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28 |
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29 The following functions have been deprecated in Octave 3.6 and will |
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30 be removed from Octave 3.10 (or whatever version is the second major |
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31 release after 3.6): |
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32 |
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33 cut |
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34 __error_text__ |
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35 error_text |
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36 is_duplicate_entry |
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37 polyderiv |
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38 studentize |
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39 sylvester_matrix |
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40 |
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41 Summary of important user-visible changes for version 3.4.2: |
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42 ----------------------------------------------------------- |
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43 |
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44 ** Octave 3.2.4 fixes some minor installation problems that affected |
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45 version 3.4.1. |
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46 |
12709 | 47 Summary of important user-visible changes for version 3.4.1: |
48 ----------------------------------------------------------- | |
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49 |
12709 | 50 ** Octave 3.4.1 is primarily a bug fixing release. |
51 | |
52 ** IMPORTANT note about binary incompatibility in this release: | |
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53 |
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54 Binary compatibility for all 3.4.x releases was originally planned, |
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55 but this is impossible for the 3.4.1 release due to a bug in the way |
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56 shared libraries were built in Octave 3.4.0. Because of this bug, |
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57 .oct files built for Octave 3.4.0 must be recompiled before they |
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58 will work with Octave 3.4.1. |
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59 |
12709 | 60 Given that there would be binary incompatibilities with shared |
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61 libraries going from Octave 3.4.0 to 3.4.1, the following |
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62 incompatible changes were also made in this release: |
12709 | 63 |
64 * The Perl Compatible Regular Expression (PCRE) library is now | |
65 required to build Octave. | |
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66 |
12712 | 67 * Octave's libraries and .oct files are now installed in |
68 subdirectories of $libdir instead of $libexecdir. | |
69 | |
12709 | 70 Any future Octave 3.4.x release versions should remain binary |
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71 compatible with Octave 3.4.1 as proper library versioning is now |
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72 being used as recommended by the libtool manual. |
12709 | 73 |
74 ** The following functions have been deprecated in Octave 3.4.1 and will | |
75 be removed from Octave 3.8 (or whatever version is the second major | |
76 release after 3.4): | |
77 | |
78 cquad is_duplicate_entry perror strerror | |
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79 |
12709 | 80 ** The following functions are new in 3.4.1: |
81 | |
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82 colstyle gmres iscolumn isrow mgorth nproc rectangle |
12709 | 83 |
84 ** The get_forge_pkg function is now private. | |
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85 |
12709 | 86 ** The rectangle_lw, rectangle_sw, triangle_lw, and triangle_sw |
87 functions are now private. | |
88 | |
89 ** The logistic_regression_derivatives and logistic_regression_likelihood | |
90 functions are now private. | |
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91 |
12739 | 92 ** ChangeLog files in the Octave sources are no longer maintained |
93 by hand. Instead, there is a single ChangeLog file generated from | |
94 the Mercurial version control commit messages. Older ChangeLog | |
95 information can be found in the etc/OLD-ChangeLogs directory in the | |
96 source distribution. | |
97 | |
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98 Summary of important user-visible changes for version 3.4: |
9352 | 99 --------------------------------------------------------- |
100 | |
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101 ** BLAS and LAPACK libraries are now required to build Octave. The |
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102 subset of the reference BLAS and LAPACK libraries has been removed |
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103 from the Octave sources. |
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104 |
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105 ** The ARPACK library is now distributed with Octave so it no longer |
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106 needs to be available as an external dependency when building |
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107 Octave. |
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108 |
10118 | 109 ** The `lookup' function was extended to be more useful for |
110 general-purpose binary searching. Using this improvement, the | |
111 ismember function was rewritten for significantly better | |
112 performance. | |
9352 | 113 |
114 ** Real, integer and logical matrices, when used in indexing, will now | |
115 cache the internal index_vector value (zero-based indices) when | |
116 successfully used as indices, eliminating the conversion penalty for | |
10118 | 117 subsequent indexing by the same matrix. In particular, this means it |
118 is no longer needed to avoid repeated indexing by logical arrays | |
119 using find for performance reasons. | |
9888 | 120 |
10118 | 121 ** Logical matrices are now treated more efficiently when used as |
122 indices. Octave will keep the index as a logical mask unless the | |
123 ratio of true elements is small enough, using a specialized | |
124 code. Previously, all logical matrices were always first converted | |
125 to index vectors. This results in savings in both memory and | |
126 computing time. | |
9480 | 127 |
10118 | 128 ** The `sub2ind' and `ind2sub' functions were reimplemented as compiled |
129 functions for better performance. These functions are now faster, | |
130 can deliver more economized results for ranges, and can reuse the | |
131 index cache mechanism described in previous paragraph. | |
132 | |
133 ** The built-in function equivalents to associative operators (`plus', | |
134 `times', `mtimes', `and', and `or') have been extended to accept | |
135 multiple arguments. This is especially useful for summing | |
136 (multiplying, etc.) lists of objects (of possibly distinct types): | |
9408 | 137 |
9449 | 138 matrix_sum = plus (matrix_list{:}); |
139 | |
10118 | 140 ** An FTP object type based on libcurl has been implemented. These |
141 objects allow ftp connections, downloads and uploads to be | |
142 managed. For example, | |
9880 | 143 |
10118 | 144 fp = ftp ("ftp.octave.org); |
145 cd (fp, "gnu/octave"); | |
146 mget (fp, "octave-3.2.3.tar.bz2"); | |
147 close (fp); | |
9880 | 148 |
10118 | 149 ** The default behavior of `assert (observed, expected)' has been |
150 relaxed to employ less strict checking that does not require the | |
151 internals of the values to match. This avoids previously valid | |
152 tests from breaking due to new internal classes introduced in future | |
153 Octave versions. | |
9449 | 154 |
155 For instance, all of these assertions were true in Octave 3.0.x | |
156 but false in 3.2.x due to new optimizations and improvements: | |
157 | |
158 assert (2*linspace (1, 5, 5), 2*(1:5)) | |
159 assert (zeros (0, 0), []) | |
160 assert (2*ones (1, 5), (2) (ones (1,5))) | |
9462 | 161 |
10118 | 162 ** The behavior of library functions `ismatrix', `issquare', and |
163 `issymmetric' has been changed for better consistency. | |
9873 | 164 |
10292 | 165 * The `ismatrix' function now returns true for all numeric, |
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166 logical and character 2-D or N-D matrices. Previously, `ismatrix' |
10292 | 167 returned false if the first or second dimension was zero. |
168 Hence, `ismatrix ([])' was false, | |
169 while `ismatrix (zeros (1,2,0))' was true. | |
9873 | 170 |
10118 | 171 * The `issquare' function now returns a logical scalar, and is |
172 equivalent to the expression | |
173 | |
174 ismatrix (x) && ndims (x) == 2 && rows (x) == columns (x) | |
175 | |
176 The dimension is no longer returned. As a result, `issquare ([])' | |
177 now yields true. | |
9873 | 178 |
10118 | 179 * The `issymmetric' function now checks for symmetry instead of |
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180 Hermitianness. For the latter, ishermitian was created. Also, |
10118 | 181 logical scalar is returned rather than the dimension, so |
182 `issymmetric ([])' is now true. | |
9873 | 183 |
10118 | 184 ** Function handles are now aware of overloaded functions. If a |
185 function is overloaded, the handle determines at the time of its | |
186 reference which function to call. A non-overloaded version does not | |
187 need to exist. | |
9873 | 188 |
10118 | 189 ** Overloading functions for built-in classes (double, int8, cell, |
190 etc.) is now compatible with Matlab. | |
9408 | 191 |
10323 | 192 ** Function handles can now be compared with the == and != operators, |
193 as well as the `isequal' function. | |
194 | |
10118 | 195 ** Performance of concatenation (using []) and the functions `cat', |
196 `horzcat', and `vertcat' has been improved for multidimensional | |
197 arrays. | |
10117 | 198 |
9547 | 199 ** The operation-assignment operators +=, -=, *= and /= now behave more |
10118 | 200 efficiently in certain cases. For instance, if M is a matrix and S a |
201 scalar, then the statement | |
9547 | 202 |
10118 | 203 M += S; |
9547 | 204 |
10118 | 205 will operate on M's data in-place if it is not shared by another |
206 variable, usually increasing both time and memory efficiency. | |
9547 | 207 |
9558 | 208 Only selected common combinations are affected, namely: |
9547 | 209 |
210 matrix += matrix | |
211 matrix -= matrix | |
9558 | 212 matrix .*= matrix |
213 matrix ./= matrix | |
214 | |
9547 | 215 matrix += scalar |
216 matrix -= scalar | |
217 matrix *= scalar | |
218 matrix /= scalar | |
9558 | 219 |
9552 | 220 logical matrix |= logical matrix |
221 logical matrix &= logical matrix | |
9547 | 222 |
10118 | 223 where matrix and scalar belong to the same class. The left-hand |
224 side must be a simple variable reference. | |
9888 | 225 |
10118 | 226 Moreover, when unary operators occur in expressions, Octave will |
227 also try to do the operation in-place if it's argument is a | |
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228 temporary expression. |
9589 | 229 |
10118 | 230 ** The effect of comparison operators (<, >, <=, and >=) applied to |
231 complex numbers has changed to be consistent with the strict | |
232 ordering defined by the `max', `min', and `sort' functions. More | |
233 specifically, complex numbers are compared by lexicographical | |
234 comparison of the pairs `[abs(z), arg(z)]'. Previously, only real | |
235 parts were compared; this can be trivially achieved by wrapping the | |
236 operands in real(). | |
9547 | 237 |
10118 | 238 ** The automatic simplification of complex computation results has |
239 changed. Octave will now simplify any complex number with a zero | |
240 imaginary part or any complex matrix with all elements having zero | |
241 imaginary part to a real value. Previously, this was done only for | |
242 positive zeros. Note that the behavior of the complex function is | |
243 unchanged and it still produces a complex value even if the | |
244 imaginary part is zero. | |
9826 | 245 |
10118 | 246 ** As a side effect of code refactoring in liboctave, the binary |
247 logical operations are now more easily amenable to compiler | |
248 optimizations and are thus significantly faster. | |
9595 | 249 |
10118 | 250 ** Octave now allows user-defined `subsasgn' methods to optimize out |
251 redundant copies. For more information, see the manual. | |
9595 | 252 |
10453 | 253 ** More efficient matrix division handling. Octave is now able to |
10118 | 254 handle the expressions |
9664 | 255 |
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256 M' \ V |
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257 M.' \ V |
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258 V / M |
9664 | 259 |
10118 | 260 (M is a matrix and V is a vector) more efficiently in certain cases. |
261 In particular, if M is triangular, all three expressions will be | |
262 handled by a single call to xTRTRS (from LAPACK), with appropriate | |
10453 | 263 flags. Previously, all three expressions required a physical |
10118 | 264 transpose of M. |
9664 | 265 |
10118 | 266 ** More efficient handling of certain mixed real-complex matrix |
267 operations. For instance, if RM is a real matrix and CM a complex | |
268 matrix, | |
9664 | 269 |
10118 | 270 RM * CM |
9664 | 271 |
272 can now be evaluated either as | |
273 | |
274 complex (RM * real (CM), RM * imag (CM)) | |
275 | |
276 or as | |
277 | |
278 complex (RM) * CM, | |
279 | |
10453 | 280 depending on the dimensions. The first form requires more |
281 temporaries and copying, but halves the FLOP count, which normally | |
282 brings better performance if RM has enough rows. Previously, the | |
283 second form was always used. | |
9664 | 284 |
11111 | 285 Matrix division is similarly affected. |
9664 | 286 |
10118 | 287 ** More efficient handling of triangular matrix factors returned from |
288 factorizations. The functions for computing QR, LU and Cholesky | |
289 factorizations will now automatically return the triangular matrix | |
290 factors with proper internal matrix_type set, so that it won't need | |
291 to be computed when the matrix is used for division. | |
9717 | 292 |
10118 | 293 ** The built-in `sum' function now handles the non-native summation |
294 (i.e., double precision sum of single or integer inputs) more | |
295 efficiently, avoiding a temporary conversion of the whole input | |
296 array to doubles. Further, `sum' can now accept an extra option | |
297 argument, using a compensated summation algorithm rather than a | |
298 straightforward sum, which significantly improves precision if lots | |
299 of cancellation occurs in the summation. | |
9717 | 300 |
10118 | 301 ** The built-in `bsxfun' function now uses optimized code for certain |
302 cases where built-in operator handles are passed in. Namely, the | |
303 optimizations concern the operators `plus', `minus', `times', | |
304 `ldivide', `rdivide', `power', `and', `or' (for logical arrays), | |
305 the relational operators `eq', `ne', `lt', `le', `gt', `ge', and the | |
306 functions `min' and `max'. Optimizations only apply when both | |
307 operands are of the same built-in class. Mixed real/complex and | |
308 single/double operations will first convert both operands to a | |
309 common type. | |
9745 | 310 |
10118 | 311 ** The `strfind' and `strrep' functions now have compiled |
312 implementations, facilitating significantly more efficient searching | |
313 and replacing in strings, especially with longer patterns. The code | |
314 of `strcat' has been vectorized and is now much more efficient when | |
315 many strings are concatenated. The `strcmpi' and `strncmpi' | |
316 functions are now built-in functions, providing better performance. | |
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317 |
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318 ** 'str2double' now has a compiled implementation and the API conforms |
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319 to Matlab. The additional Octave-specific features of returning a |
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320 boolean matrix indicating which elements were successfully converted |
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321 has been removed. |
10208 | 322 |
10453 | 323 ** Matlab-style ignoring input and output function arguments using |
11111 | 324 tilde (~) is now supported. Ignored output arguments may be |
325 detected from a function using the built-in function `isargout'. | |
326 For more details, consult the manual. | |
10886 | 327 |
10453 | 328 ** The list datatype, deprecated since the introduction of cells, has |
329 been removed. | |
10276 | 330 |
10453 | 331 ** The accumarray function has been optimized and is now significantly |
332 faster in certain important cases. | |
10054 | 333 |
10292 | 334 ** The behavior of isreal and isnumeric functions was changed to be more |
335 Matlab-compatible. | |
336 | |
10406 | 337 ** The integer math & conversion warnings (Octave:int-convert-nan, |
338 Octave:int-convert-non-int-val, Octave:int-convert-overflow, | |
11111 | 339 Octave:int-math-overflow) have been removed. |
10406 | 340 |
10453 | 341 ** rem and mod are now built-in functions. They also handle integer |
342 types efficiently using integer arithmetic. | |
10437 | 343 |
10536 | 344 ** Sparse indexing and indexed assignment has been mostly rewritten. |
345 Since Octave uses compressed column storage for sparse matrices, | |
346 major attention is devoted to operations manipulating whole columns. | |
347 Such operations are now significantly faster, as well as some other | |
348 important cases. | |
349 | |
350 Further, it is now possible to pre-allocate a sparse matrix and | |
351 subsequently fill it by assignments, provided they meet certain | |
352 conditions. For more information, consult the `spalloc' function, | |
353 which is no longer a mere dummy. Consequently, nzmax and nnz are no | |
11111 | 354 longer always equal in Octave. Octave may also produce a matrix |
355 with nnz < nzmax as a result of other operations, so you should | |
356 consistently use nnz unless you really want to use nzmax (i.e. the | |
357 space allocated for nonzero elements). | |
10536 | 358 |
359 Sparse concatenation is also affected, and concatenating sparse | |
360 matrices, especially larger collections, is now significantly more | |
11111 | 361 efficient. This applies to both the [] operator and the |
10536 | 362 cat/vertcat/horzcat functions. |
363 | |
11111 | 364 ** It is now possible to optionally employ the xGESDD LAPACK drivers |
365 for computing the singular value decomposition using svd(), instead | |
366 of the default xGESVD, using the configuration pseudo-variable | |
367 svd_driver. The xGESDD driver can be up to 6x times faster when | |
368 singular vectors are requested, but is reported to be somewhat less | |
10639 | 369 robust on highly ill-conditioned matrices. |
370 | |
371 ** Configuration pseudo-variables, such as page_screen_output or | |
372 confirm_recursive_rmdir (or the above mentioned svd_driver), now | |
373 accept a "local" option as second argument, requesting the change | |
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374 to be undone when the current function returns: |
10639 | 375 |
376 function [status, msg] = rm_rf (dir) | |
377 confirm_recursive_rmdir (false, "local"); | |
378 [status, msg] = rmdir (dir, "s"); | |
379 ... | |
380 endfunction | |
381 | |
382 Upon return, confirm_recursive_rmdir will be restored to the value | |
383 it had on entry to the function, even if there were subsequent | |
384 changes to the variable in function rm_rf or any of the functions | |
385 it calls. | |
386 | |
11111 | 387 ** pkg now accepts a -forge option for downloading and installing |
388 packages from Octave Forge automatically. For example, | |
10774 | 389 |
390 pkg install -forge general | |
391 | |
11111 | 392 will automatically download the latest release of the general |
393 package and attempt to install it. No automatic resolving of | |
394 dependencies is provided. Further, | |
10639 | 395 |
10774 | 396 pkg list -forge |
397 | |
398 can be used to list all available packages. | |
399 | |
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400 ** The internal data representation of structs has been completely |
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401 rewritten to make certain optimizations feasible. The field data |
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402 can now be shared between structs with equal keys but different |
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403 dimensions or values, making operations that preserve the fields |
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404 faster. Economized storage is now used for scalar structs (just |
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405 like most other scalars), making their usage more |
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406 memory-efficient. Certain array-like operations on structs |
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407 (concatenation, uniform cellfun, num2cell) have gained a |
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408 significant speed-up. Additionally, the octave_scalar_map class |
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409 now provides a simpler interface to work with scalar structs within |
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410 a C++ DLD function. |
10639 | 411 |
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412 ** Two new formats are available for displaying numbers: |
11111 | 413 |
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414 format short eng |
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415 format long eng |
11111 | 416 |
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417 Both display numbers in engineering notation, i.e., mantissa + |
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418 exponent where the exponent is a multiple of 3. |
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419 |
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420 ** The following functions are new in Octave 3.4: |
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421 accumdim erfcx nfields pqpnonneg uigetdir |
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422 bitpack fileread nth_element quadcc uigetfile |
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423 bitunpack fminbnd onCleanup randi uiputfile |
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424 blkmm fskipl pbaspect repelems uimenu |
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425 cbrt ifelse pie3 reset whitebg |
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426 curl ishermitian powerset rsf2csf |
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427 chop isindex ppder saveas |
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428 daspect luupdate ppint strread |
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429 divergence merge ppjumps textread |
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430 |
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431 ** Using the image function to view images with external programs such |
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432 as display, xv, and xloadimage is no longer supported. The |
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433 image_viewer function has also been removed. |
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434 |
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435 ** The behavior of struct assignments to non-struct values has been |
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436 changed. Previously, it was possible to overwrite an arbitrary |
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437 value: |
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438 |
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439 a = 1; |
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440 a.x = 2; |
10873 | 441 |
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442 This is no longer possible unless a is an empty matrix or cell |
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443 array. |
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444 |
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445 ** The dlmread function has been extended to allow specifying a custom |
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446 value for empty fields. |
10829 | 447 |
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448 ** The dlmread and dlmwrite functions have been modified to accept |
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449 file IDs (as returned by fopen) in addition to file names. |
11111 | 450 |
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451 ** Octave can now optimize away the interpreter overhead of an |
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452 anonymous function handle, if the function simply calls another |
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453 function or handle with some of its parameters bound to certain |
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454 values. Example: |
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455 |
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456 f = @(x) sum (x, 1); |
10966 | 457 |
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458 When f is called, the call is forwarded to @sum with the constant 1 |
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459 appended, and the anonymous function call does not occur on the |
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460 call stack. |
10829 | 461 |
12424 | 462 ** For compatibility with Matlab, mu2lin (x) is now equivalent to |
463 mu2lin (x, 0). | |
464 | |
465 ** The new function `history_control' may be used to control the way | |
466 command lines are added to the history list when Octave is using | |
467 readline for command-line editing. For example | |
468 | |
469 history_control ("ignoredups") | |
470 | |
471 tells Octave to avoid adding duplicate lines to the history list. | |
472 | |
473 ** Octave now uses the gnulib library for improved portability and to | |
474 avoid bugs in operating system functions. | |
475 | |
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476 ** Deprecated functions. |
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477 |
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478 The following functions were deprecated in Octave 3.0 and have been |
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479 removed from Octave 3.4. |
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480 |
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481 beta_cdf geometric_pdf pascal_pdf |
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482 beta_inv geometric_rnd pascal_rnd |
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483 beta_pdf hypergeometric_cdf poisson_cdf |
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484 beta_rnd hypergeometric_inv poisson_inv |
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485 binomial_cdf hypergeometric_pdf poisson_pdf |
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486 binomial_inv hypergeometric_rnd poisson_rnd |
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487 binomial_pdf intersection polyinteg |
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488 binomial_rnd is_bool setstr |
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489 chisquare_cdf is_complex struct_contains |
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490 chisquare_inv is_list struct_elements |
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491 chisquare_pdf is_matrix t_cdf |
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492 chisquare_rnd is_scalar t_inv |
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493 clearplot is_square t_pdf |
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494 clg is_stream t_rnd |
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495 com2str is_struct uniform_cdf |
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496 exponential_cdf is_symmetric uniform_inv |
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497 exponential_inv is_vector uniform_pdf |
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498 exponential_pdf isstr uniform_rnd |
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499 exponential_rnd lognormal_cdf weibcdf |
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500 f_cdf lognormal_inv weibinv |
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501 f_inv lognormal_pdf weibpdf |
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502 f_pdf lognormal_rnd weibrnd |
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503 f_rnd meshdom weibull_cdf |
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504 gamma_cdf normal_cdf weibull_inv |
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505 gamma_inv normal_inv weibull_pdf |
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506 gamma_pdf normal_pdf weibull_rnd |
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507 gamma_rnd normal_rnd wiener_rnd |
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508 geometric_cdf pascal_cdf |
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509 geometric_inv pascal_inv |
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510 |
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511 The following functions were deprecated in Octave 3.2 and will |
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512 be removed from Octave 3.6 (or whatever version is the second major |
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513 release after 3.2): |
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514 |
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515 create_set spcholinv splu |
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516 dmult spcumprod spmax |
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517 iscommand spcumsum spmin |
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518 israwcommand spdet spprod |
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519 lchol spdiag spqr |
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520 loadimage spfind spsum |
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521 mark_as_command sphcat spsumsq |
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522 mark_as_rawcommand spinv spvcat |
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523 spatan2 spkron str2mat |
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524 spchol splchol unmark_command |
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525 spchol2inv split unmark_rawcommand |
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526 |
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527 The following functions have been deprecated in Octave 3.4 and will |
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528 be removed from Octave 3.8 (or whatever version is the second major |
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529 release after 3.4): |
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530 |
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531 autocor cellidx gammai krylovb saveimage |
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532 autocov dispatch glpkmex perror strerror |
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533 betai fstat is_global replot values |
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534 |
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535 Summary of important user-visible changes for version 3.2: |
5913 | 536 --------------------------------------------------------- |
2452 | 537 |
8737 | 538 ** Compatibility with Matlab graphics has been improved. |
6329 | 539 |
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540 The hggroup object and associated listener callback functions have |
8737 | 541 been added allowing the inclusion of group objects. Data sources |
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542 have been added to these group objects such that |
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543 |
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544 x = 0:0.1:10; |
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545 y = sin (x); |
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546 plot (x, y, "ydatasource", "y"); |
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547 for i = 1 : 100 |
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548 pause(0.1) |
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549 y = sin (x + 0.1 * i); |
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550 refreshdata(); |
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551 endfor |
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552 |
8737 | 553 works as expected. This capability has be used to introduce |
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554 stem-series, bar-series, etc., objects for better Matlab |
8737 | 555 compatibility. |
556 | |
557 ** New graphics functions: | |
558 | |
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559 addlistener ezcontour gcbo refresh |
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560 addproperty ezcontourf ginput refreshdata |
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561 allchild ezmesh gtext specular |
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562 available_graphics_toolkits ezmeshc intwarning surfl |
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563 graphics_toolkit ezplot ishghandle trisurf |
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564 cla ezplot3 isocolors waitforbuttonpress |
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565 clabel ezpolar isonormals |
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566 comet ezsurf isosurface |
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567 dellistener findall linkprop |
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568 diffuse gcbf plotmatrix |
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569 |
8737 | 570 ** New experimental OpenGL/FLTK based plotting system. |
571 | |
572 An experimental plotting system based on OpenGL and the FLTK | |
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573 toolkit is now part of Octave. This graphics toolkit is disabled by |
8737 | 574 default. You can switch to using it with the command |
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575 |
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576 graphics_toolkit ("fltk") |
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577 |
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578 for all future figures or for a particular figure with the command |
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579 |
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580 graphics_toolkit (h, "fltk") |
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581 |
11139 | 582 where "h" is a valid figure handle. |
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583 |
8737 | 584 ** Functions providing direct access to gnuplot have been removed. |
585 | |
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586 The functions __gnuplot_plot__, __gnuplot_set__, __gnuplot_raw__, |
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587 __gnuplot_show__, __gnuplot_replot__, __gnuplot_splot__, |
8737 | 588 __gnuplot_save_data__ and __gnuplot_send_inline_data__ have been |
589 removed from Octave. These function were incompatible with the | |
590 high level graphics handle code. | |
6329 | 591 |
8885 | 592 ** The Control, Finance and Quaternion functions have been removed. |
593 | |
594 These functions are now available as separate packages from | |
595 | |
596 http://octave.sourceforge.net/packages.html | |
597 | |
598 and can be reinstalled using the Octave package manager (see | |
599 the pkg function). | |
600 | |
601 ** Specific sparse matrix functions removed. | |
602 | |
603 The following functions, which handled only sparse matrices have | |
604 been removed. Instead of calling these functions directly, you | |
605 should use the corresponding function without the "sp" prefix. | |
8737 | 606 |
8885 | 607 spatan2 spcumsum spkron spprod |
608 spchol spdet splchol spqr | |
609 spchol2inv spdiag splu spsum | |
610 spcholinv spfind spmax spsumsqk | |
611 spcumprod spinv spmin | |
612 | |
613 ** Improvements to the debugger. | |
614 | |
615 The interactive debugging features have been improved. Stopping | |
616 on statements with dbstop should work correctly now. Stepping | |
617 into and over functions, and stepping one statement at a time | |
618 (with dbstep) now works. Moving up and down the call stack with | |
619 dbup and dbdown now works. The dbstack function is now available | |
620 to print the current function call stack. The new dbquit function | |
621 is available to exit the debugging mode. | |
622 | |
623 ** Improved traceback error messages. | |
624 | |
625 Traceback error messages are much more concise and easier to | |
626 understand. They now display information about the function call | |
627 stack instead of the stack of all statements that were active at | |
628 the point of the error. | |
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629 |
8737 | 630 ** Object Oriented Programming. |
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631 |
8737 | 632 Octave now includes OOP features and the user can create their own |
633 class objects and overloaded functions and operators. For | |
634 example, all methods of a class called "myclass" will be found in | |
635 a directory "@myclass" on the users path. The class specific | |
636 versions of functions and operators take precedence over the | |
637 generic versions of these functions. | |
638 | |
639 New functions related to OOP include | |
7189 | 640 |
8737 | 641 class inferiorto isobject loadobj methods superiorto |
642 | |
643 See the Octave manual for more details. | |
7038 | 644 |
8747 | 645 ** Parsing of Command-style Functions. |
646 | |
647 Octave now parses command-style functions without needing to first | |
648 declare them with "mark_as_command". The rules for recognizing a | |
649 command-style function calls are | |
650 | |
651 * A command must appear as the first word in a statement, | |
652 followed by a space. | |
653 | |
654 * The first character after the space must not be '=' or '(' | |
655 | |
656 * The next token after the space must not look like a binary | |
657 operator. | |
658 | |
659 These rules should be mostly compatible with the way Matlab parses | |
660 command-style function calls and allow users to define commands in | |
661 .m files without having to mark them as commands. | |
662 | |
663 Note that previous versions of Octave allowed expressions like | |
664 | |
665 x = load -text foo.dat | |
666 | |
667 but an expression like this will now generate a parse error. In | |
668 order to assign the value returned by a function to a variable, | |
669 you must use the normal function call syntax: | |
670 | |
671 x = load ("-text", "foo.dat"); | |
672 | |
8737 | 673 ** Block comments. |
674 | |
8747 | 675 Commented code can be between matching "#{" and "#}" or "%{" and |
676 "%}" markers, even if the commented code spans several line. This | |
677 allows blocks code to be commented, without needing to comment | |
678 each line. For example, | |
5814 | 679 |
8747 | 680 function [s, t] = func (x, y) |
681 s = 2 * x; | |
682 #{ | |
683 s *= y; | |
684 t = y + x; | |
685 #} | |
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686 endfunction |
5814 | 687 |
8747 | 688 the lines "s *= y;" and "t = y + x" will not be executed. |
8737 | 689 |
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690 ** If any subfunction in a file ends with "end" or "endfunction", then |
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691 they all must end that way. Previously, Octave accepted |
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692 |
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693 function main () |
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694 ... |
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695 # no endfunction here. |
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696 function sub () |
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697 ... |
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698 endfunction |
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699 |
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700 but this is no longer allowed. |
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701 |
8737 | 702 ** Special treatment in the parser of expressions like "a' * b". |
2452 | 703 |
8737 | 704 In these cases the transpose is no longer explicitly formed and |
705 BLAS libraries are called with the transpose flagged, | |
706 significantly improving performance for these kinds of | |
707 operations. | |
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708 |
8737 | 709 ** Single Precision data type. |
2452 | 710 |
8737 | 711 Octave now includes a single precision data type. Single |
712 precision variables can be created with the "single" command, or | |
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713 from functions like ones, eye, etc. For example, |
5995 | 714 |
8737 | 715 single (1) |
716 ones (2, 2, "single") | |
717 zeros (2, 2, "single") | |
718 eye (2, 2, "single") | |
719 Inf (2, 2, "single") | |
720 NaN (2, 2, "single") | |
721 NA (2, 2, "single") | |
7279 | 722 |
8737 | 723 all create single precision variables. For compatibility with |
724 Matlab, mixed double/single precision operators and functions | |
725 return single precision types. | |
726 | |
727 As a consequence of this addition to Octave the internal | |
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728 representation of the double precision NA value has changed, and |
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729 so users that make use of data generated by Octave with R or |
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730 visa-versa are warned that compatibility might not be assured. |
7279 | 731 |
8737 | 732 ** Improved array indexing. |
733 | |
734 The underlying code used for indexing of arrays has been | |
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735 completely rewritten and indexing is now significantly faster. |
8737 | 736 |
8755 | 737 ** Improved memory management. |
738 | |
739 Octave will now attempt to share data in some cases where previously | |
740 a copy would be made, such as certain array slicing operations or | |
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741 conversions between cells, structs and cs-lists. This usually reduces |
8755 | 742 both time and memory consumption. |
9128 | 743 Also, Octave will now attempt to detect and optimize usage of a vector |
744 as a stack, when elements are being repeatedly inserted at/removed from | |
745 the end of the vector. | |
8755 | 746 |
8738 | 747 ** Improved performance for reduction operations. |
748 | |
8755 | 749 The performance of the sum, prod, sumsq, cumsum, cumprod, any, all, |
750 max and min functions has been significantly improved. | |
8738 | 751 |
9006 | 752 ** Sorting and searching. |
753 | |
754 The performance of sort has been improved, especially when sorting | |
10453 | 755 indices are requested. An efficient built-in issorted |
756 implementation was added. The sortrows function now uses a more | |
12702
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doc: Spelling fixes for various documentation files
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757 efficient algorithm, especially in the homogeneous case. The lookup |
10453 | 758 function is now a built-in function performing a binary search, |
759 optimized for long runs of close elements. Lookup also works with | |
760 cell arrays of strings. | |
9006 | 761 |
762 ** Range arithmetics | |
763 | |
10453 | 764 For some operations on ranges, Octave will attempt to keep the |
765 result as a range. These include negation, adding a scalar, | |
766 subtracting a scalar, and multiplying by a scalar. Ranges with zero | |
767 increment are allowed and can be constructed using the built-in | |
768 function `ones'. | |
9006 | 769 |
770 ** Various performance improvements. | |
771 | |
10453 | 772 Performance of a number of other built-in operations and functions |
773 was improved, including: | |
9006 | 774 |
775 * logical operations | |
776 * comparison operators | |
777 * element-wise power | |
778 * accumarray | |
779 * cellfun | |
780 * isnan | |
781 * isinf | |
782 * isfinite | |
783 * nchoosek | |
784 * repmat | |
785 * strcmp | |
786 | |
8737 | 787 ** 64-bit integer arithmetic. |
788 | |
789 Arithmetic with 64-bit integers (int64 and uint64 types) is fully | |
790 supported, with saturation semantics like the other integer types. | |
791 Performance of most integer arithmetic operations has been | |
792 improved by using integer arithmetic directly. Previously, Octave | |
793 performed integer math with saturation semantics by converting the | |
794 operands to double precision, performing the operation, and then | |
795 converting the result back to an integer value, truncating if | |
796 necessary. | |
797 | |
8885 | 798 ** Diagonal and permutation matrices. |
799 | |
800 The interpreter can now treat diagonal and permutation matrices as | |
801 special objects that store only the non-zero elements, rather than | |
802 general full matrices. Therefore, it is now possible to construct | |
803 and use these matrices in linear algebra without suffering a | |
804 performance penalty due to storing large numbers of zero elements. | |
805 | |
806 ** Improvements to fsolve. | |
807 | |
808 The fsolve function now accepts an option structure argument (see | |
809 also the optimset function). The INFO values returned from fsolve | |
810 have changed to be compatible with Matlab's fsolve function. | |
811 Additionally, fsolve is now able to solve overdetermined systems, | |
812 complex-differentiable complex systems, systems with a sparse | |
813 jacobian and can work in single precision if given single precision | |
9031
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parents:
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814 inputs. It can also be called recursively. |
8885 | 815 |
8737 | 816 ** Improvements to the norm function. |
817 | |
818 The norm function is now able to compute row or column norms of a | |
819 matrix in a single call, as well as general matrix p-norms. | |
820 | |
821 ** New functions for computing some eigenvalues or singular values. | |
822 | |
823 The eigs and svds functions have been included in Octave. These | |
824 functions require the ARPACK library (now distributed under a | |
825 GPL-compatible license). | |
826 | |
827 ** New QR and Cholesky factorization updating functions. | |
8370
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828 |
8737 | 829 choldelete cholshift qrdelete qrshift |
830 cholinsert cholupdate qrinsert qrupdate | |
831 | |
832 ** New quadrature functions. | |
833 | |
834 dblquad quadgk quadv triplequad | |
835 | |
8885 | 836 ** New functions for reading and writing images. |
837 | |
838 The imwrite and imread functions have been included in Octave. | |
839 These functions require the GraphicsMagick library. The new | |
840 function imfinfo provides information about an image file (size, | |
841 type, colors, etc.) | |
842 | |
9215
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843 ** The input_event_hook function has been replaced by the pair of |
1500d0197484
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844 functions add_input_event_hook and remove_input_event_hook so that |
1500d0197484
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845 more than one hook function may be installed at a time. |
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846 |
8737 | 847 ** Other miscellaneous new functions. |
8370
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848 |
8932
2d0f8692a82e
Add the 'histc' function
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849 addtodate hypot reallog |
2d0f8692a82e
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850 bicgstab idivide realpow |
9006 | 851 cellslices info realsqrt |
852 cgs interp1q rectint | |
853 command_line_path isdebugmode regexptranslate | |
854 contrast isfloat restoredefaultpath | |
855 convn isstrprop roundb | |
856 cummin log1p rundemos | |
857 cummax lsqnonneg runlength | |
858 datetick matlabroot saveobj | |
859 display namelengthmax spaugment | |
860 expm1 nargoutchk strchr | |
861 filemarker pathdef strvcat | |
862 fstat perl subspace | |
863 full prctile symvar | |
864 fzero quantile treelayout | |
865 genvarname re_read_readline_init_file validatestring | |
866 histc | |
8370
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867 |
8885 | 868 ** Changes to strcat. |
869 | |
870 The strcat function is now compatible with Matlab's strcat | |
871 function, which removes trailing whitespace when concatenating | |
872 character strings. For example | |
873 | |
874 strcat ('foo ', 'bar') | |
875 ==> 'foobar' | |
876 | |
877 The new function cstrcat provides the previous behavior of | |
878 Octave's strcat. | |
879 | |
880 ** Improvements to the help functions. | |
881 | |
9034
52515efc50c0
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882 The help system has been mostly re-implemented in .m files to make |
8885 | 883 it easier to modify. Performance of the lookfor function has been |
884 greatly improved by caching the help text from all functions that | |
885 are distributed with Octave. The pkg function has been modified | |
886 to generate cache files for external packages when they are | |
887 installed. | |
888 | |
8888
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889 ** Deprecated functions. |
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890 |
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891 The following functions were deprecated in Octave 3.0 and will be |
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892 removed from Octave 3.4 (or whatever version is the second major |
8888
0c7b0049c023
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893 release after 3.0): |
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894 |
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895 beta_cdf geometric_pdf pascal_pdf |
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896 beta_inv geometric_rnd pascal_rnd |
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list deprecated and removed functions in NEWS file
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897 beta_pdf hypergeometric_cdf poisson_cdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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898 beta_rnd hypergeometric_inv poisson_inv |
8ea4cf59c41b
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parents:
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|
899 binomial_cdf hypergeometric_pdf poisson_pdf |
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list deprecated and removed functions in NEWS file
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parents:
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900 binomial_inv hypergeometric_rnd poisson_rnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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901 binomial_pdf intersection polyinteg |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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902 binomial_rnd is_bool setstr |
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John W. Eaton <jwe@octave.org>
parents:
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903 chisquare_cdf is_complex struct_contains |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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904 chisquare_inv is_list struct_elements |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
11111
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905 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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906 chisquare_rnd is_scalar t_inv |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
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907 clearplot is_square t_pdf |
8ea4cf59c41b
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John W. Eaton <jwe@octave.org>
parents:
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908 clg is_stream t_rnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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909 com2str is_struct uniform_cdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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910 exponential_cdf is_symmetric uniform_inv |
8ea4cf59c41b
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parents:
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911 exponential_inv is_vector uniform_pdf |
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parents:
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912 exponential_pdf isstr uniform_rnd |
8ea4cf59c41b
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parents:
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913 exponential_rnd lognormal_cdf weibcdf |
8ea4cf59c41b
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parents:
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914 f_cdf lognormal_inv weibinv |
8ea4cf59c41b
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915 f_inv lognormal_pdf weibpdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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916 f_pdf lognormal_rnd weibrnd |
8ea4cf59c41b
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917 f_rnd meshdom weibull_cdf |
8ea4cf59c41b
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parents:
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918 gamma_cdf normal_cdf weibull_inv |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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919 gamma_inv normal_inv weibull_pdf |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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920 gamma_pdf normal_pdf weibull_rnd |
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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921 gamma_rnd normal_rnd wiener_rnd |
8888
0c7b0049c023
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922 geometric_cdf pascal_cdf |
0c7b0049c023
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923 geometric_inv pascal_inv |
0c7b0049c023
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924 |
0c7b0049c023
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925 The following functions are now deprecated in Octave 3.2 and will |
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|
926 be removed from Octave 3.6 (or whatever version is the second major |
8888
0c7b0049c023
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parents:
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927 release after 3.2): |
0c7b0049c023
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John W. Eaton <jwe@octave.org>
parents:
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928 |
0c7b0049c023
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929 create_set spcholinv spmax |
0c7b0049c023
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930 dmult spcumprod spmin |
0c7b0049c023
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931 iscommand spcumsum spprod |
0c7b0049c023
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932 israwcommand spdet spqr |
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933 lchol spdiag spsum |
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934 loadimage spfind spsumsq |
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935 mark_as_command spinv str2mat |
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936 mark_as_rawcommand spkron unmark_command |
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937 spatan2 splchol unmark_rawcommand |
0c7b0049c023
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938 spchol split |
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939 spchol2inv splu |
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940 |
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
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941 See NEWS.3 for old news. |