Mercurial > octave
annotate NEWS @ 8014:44d206ae68c9
improve fsolve compatibility
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 06 Aug 2008 15:50:44 -0400 |
parents | 86dae6e5b83c |
children | 3b53b25e2550 |
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7990
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Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
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1 Summary of important user-visible changes for version 3.2: |
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4 ** Compatibility with Matlab graphics is much better now. |
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6 TO BE WRITTEN (Shai / Micheal inputs please) |
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8 ** Eliminate the functions for direct access to gnuplot from Octave. |
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9 The functions __gnuplot_plot__, __gnuplot_set__, __gnuplot_raw__, |
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10 __gnuplot_show__, __gnuplot_replot__, __gnuplot_splot__, |
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11 __gnuplot_save_data__ and __gnuplot_send_inline_data__ have been |
86dae6e5b83c
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12 removed from Octave. These function were incompatible with the high |
86dae6e5b83c
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13 level graphics handle code. |
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8014
44d206ae68c9
improve fsolve compatibility
John W. Eaton <jwe@octave.org>
parents:
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15 ** The fsolve function now accepts an option structure argument (see |
44d206ae68c9
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16 also the optimset function). |
44d206ae68c9
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17 The INFO values returned from fsolve have changed to be compatible |
44d206ae68c9
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18 with Matlab's fsolve function. |
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19 |
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20 ** Object Oriented Programming |
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22 TO BE WRITTEN |
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24 ** Block comments |
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25 Commented code can be between matching "%{" and "%}" markers, even |
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26 if the commented code spans several line. This allows blocks code |
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27 to be commented, without needing to comment each line. For |
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28 example, |
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30 function y = func (x) |
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31 y = 2 * x; |
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32 %{ |
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33 y += 1; |
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34 %} |
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35 endfunction |
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37 the line "y += 1;" will not be executed. |
86dae6e5b83c
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38 |
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39 ** Removed the Control, Finance and Quaternions toolboxes |
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40 These toolboxes have been removed and ported to octave-forge, and |
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41 they are specialized toolboxes that not all users need. These |
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42 functions can be reinstalled use the Octave package manager (see |
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43 the pkg function) and the packages available at |
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45 http://octave.sourceforge.net/packages.html |
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47 ** The imwrite and imread function have been included in Octave based |
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48 on the GraphicsMagick library. |
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50 ** Special treatment in the parser of expressions like "a' * b". In |
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51 these cases the transpose is no longer explicitly formed and BLAS |
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52 libraries are called with the transpose flagged. This significantly |
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53 improves the speed. |
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55 ** Single Precision data type |
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56 Octave now includes a single precision data type. Single precision |
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57 variables can be created with the "single" command, or from |
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58 function like ones, etc. For example |
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60 single (1) |
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61 ones (2, 2, "single") |
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62 zeros (2, 2, "single") |
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63 eye (2, 2, "single") |
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64 Inf (2, 2, "single") |
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65 NaN (2, 2, "single") |
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66 NA (2, 2, "single") |
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68 all create single precision variables. Mixed double/single |
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69 precision operators and functions return single precision |
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70 types. As a consequence of this addition to Octave the internal |
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71 representation of the double precision NA value has changed, and |
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72 so users that make use of data generated by Octave with R or |
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73 visa-versa are warned that compatibility might not be assured. |
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75 See NEWS.3 for old news. |