octave-lyh: NEWS annotate

annotate NEWS @ 8396:b65c75203cef

new feature in NEWS

author	Jaroslav Hajek <highegg@gmail.com>
date	Thu, 11 Dec 2008 07:55:10 +0100
parents	34960ba08a81
children	d79dfbff2f9d

rev	line source
7990 86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	1 Summary of important user-visible changes for version 3.2:
5913 e915287e3ef9 [project @ 2006-07-28 17:06:14 by jwe] jwe parents: 5814 diff changeset	2 ---------------------------------------------------------
2452 a28ed603c65c [project @ 1996-10-31 19:49:29 by jwe] jwe parents: diff changeset	3
7990 86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	4 ** Compatibility with Matlab graphics is much better now.
6329 1d4b4312f782 [project @ 2007-02-20 06:37:09 by jwe] jwe parents: 5995 diff changeset	5
8070 3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	6 The hggroup object and associated listener callback functions have
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	7 been added allowing the inclusion of group objects. Data sources
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	8 have been added to these group objects such that
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	9
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	10 x = 0:0.1:10;
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	11 y = sin (x);
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	12 plot (x, y, "ydatasource", "y");
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	13 for i = 1 : 100
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	14 pause(0.1)
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	15 y = sin (x + 0.1 * i);
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	16 refreshdata();
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	17 endfor
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	18
8225 53202d60086f Minor update to the NEWS file David Bateman <dbateman@free.fr> parents: 8070 diff changeset	19 works as expected. This capability has be used to introduce stem-series,
53202d60086f Minor update to the NEWS file David Bateman <dbateman@free.fr> parents: 8070 diff changeset	20 bar-series, etc objects for better Matlab compatibility.
8070 3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	21
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	22 ** Experimental OpenGL/FLTK based backend to replace gnuplot
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	23
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	24 An experimental backend to replace the gnuplot backend has been
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	25 written based on FLTK. This backend is off by default. You can
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	26 switch to using this with the command
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	27
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	28 backend ("fltk")
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	29
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	30 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	31
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	32 backend (h, "fltk")
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	33
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	34 where "h" is a valid figure handle.
3b53b25e2550 Add data sources and line series David Bateman <dbateman@free.fr> parents: 8014 diff changeset	35
7990 86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	36 ** Eliminate the functions for direct access to gnuplot from Octave.
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	37 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	38 __gnuplot_show__, __gnuplot_replot__, __gnuplot_splot__,
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	39 __gnuplot_save_data__ and __gnuplot_send_inline_data__ have been
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	40 removed from Octave. These function were incompatible with the high
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	41 level graphics handle code.
6329 1d4b4312f782 [project @ 2007-02-20 06:37:09 by jwe] jwe parents: 5995 diff changeset	42
8014 44d206ae68c9 improve fsolve compatibility John W. Eaton <jwe@octave.org> parents: 7990 diff changeset	43 ** The fsolve function now accepts an option structure argument (see
44d206ae68c9 improve fsolve compatibility John W. Eaton <jwe@octave.org> parents: 7990 diff changeset	44 also the optimset function).
44d206ae68c9 improve fsolve compatibility John W. Eaton <jwe@octave.org> parents: 7990 diff changeset	45 The INFO values returned from fsolve have changed to be compatible
44d206ae68c9 improve fsolve compatibility John W. Eaton <jwe@octave.org> parents: 7990 diff changeset	46 with Matlab's fsolve function.
8396 b65c75203cef new feature in NEWS Jaroslav Hajek <highegg@gmail.com> parents: 8370 diff changeset	47 Additionally, fsolve is now able to solve overdetermined systems.
8014 44d206ae68c9 improve fsolve compatibility John W. Eaton <jwe@octave.org> parents: 7990 diff changeset	48
7990 86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	49 ** Object Oriented Programming
7189 e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7038 diff changeset	50
8225 53202d60086f Minor update to the NEWS file David Bateman <dbateman@free.fr> parents: 8070 diff changeset	51 Octave now includes OOP features and the user can create their
53202d60086f Minor update to the NEWS file David Bateman <dbateman@free.fr> parents: 8070 diff changeset	52 own class objects and overloaded functions and operators. For
53202d60086f Minor update to the NEWS file David Bateman <dbateman@free.fr> parents: 8070 diff changeset	53 example, all methods of a class called "myclass" will be found in
53202d60086f Minor update to the NEWS file David Bateman <dbateman@free.fr> parents: 8070 diff changeset	54 a directory "@myclass" on the users path. The class specific versions
53202d60086f Minor update to the NEWS file David Bateman <dbateman@free.fr> parents: 8070 diff changeset	55 of functions and operators take precedence over the generic versions
53202d60086f Minor update to the NEWS file David Bateman <dbateman@free.fr> parents: 8070 diff changeset	56 of these functions. See the Octave manual for more details.
7038 4482ba9814b7 [project @ 2007-10-19 16:05:48 by jwe] jwe parents: 6835 diff changeset	57
7990 86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	58 ** Block comments
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	59 Commented code can be between matching "%{" and "%}" markers, even
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	60 if the commented code spans several line. This allows blocks code
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	61 to be commented, without needing to comment each line. For
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	62 example,
5814 67bf9b4f2ae2 [project @ 2006-05-11 21:58:34 by jwe] jwe parents: 5798 diff changeset	63
7990 86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	64 function y = func (x)
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	65 y = 2 * x;
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	66 %{
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	67 y += 1;
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	68 %}
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	69 endfunction
5814 67bf9b4f2ae2 [project @ 2006-05-11 21:58:34 by jwe] jwe parents: 5798 diff changeset	70
7990 86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	71 the line "y += 1;" will not be executed.
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	72
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	73 ** Removed the Control, Finance and Quaternions toolboxes
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	74 These toolboxes have been removed and ported to octave-forge, and
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	75 they are specialized toolboxes that not all users need. These
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	76 functions can be reinstalled use the Octave package manager (see
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	77 the pkg function) and the packages available at
2452 a28ed603c65c [project @ 1996-10-31 19:49:29 by jwe] jwe parents: diff changeset	78
7990 86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	79 http://octave.sourceforge.net/packages.html
2452 a28ed603c65c [project @ 1996-10-31 19:49:29 by jwe] jwe parents: diff changeset	80
7990 86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	81 ** The imwrite and imread function have been included in Octave based
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	82 on the GraphicsMagick library.
2452 a28ed603c65c [project @ 1996-10-31 19:49:29 by jwe] jwe parents: diff changeset	83
7990 86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	84 ** Special treatment in the parser of expressions like "a' * b". In
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	85 these cases the transpose is no longer explicitly formed and BLAS
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	86 libraries are called with the transpose flagged. This significantly
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	87 improves the speed.
2452 a28ed603c65c [project @ 1996-10-31 19:49:29 by jwe] jwe parents: diff changeset	88
7990 86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	89 ** Single Precision data type
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	90 Octave now includes a single precision data type. Single precision
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	91 variables can be created with the "single" command, or from
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	92 function like ones, etc. For example
5995 9223672bd578 [project @ 2006-09-21 20:09:44 by jwe] jwe parents: 5913 diff changeset	93
7990 86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	94 single (1)
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	95 ones (2, 2, "single")
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	96 zeros (2, 2, "single")
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	97 eye (2, 2, "single")
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	98 Inf (2, 2, "single")
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	99 NaN (2, 2, "single")
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	100 NA (2, 2, "single")
7279 72b5e1701da2 [project @ 2007-12-10 21:01:48 by jwe] jwe parents: 7189 diff changeset	101
7990 86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	102 all create single precision variables. Mixed double/single
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	103 precision operators and functions return single precision
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	104 types. As a consequence of this addition to Octave the internal
86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	105 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	106 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	107 visa-versa are warned that compatibility might not be assured.
7279 72b5e1701da2 [project @ 2007-12-10 21:01:48 by jwe] jwe parents: 7189 diff changeset	108
8292 242756f065f0 Minor NEWS/FAQ update David Bateman <dbateman@free.fr> parents: 8225 diff changeset	109 ** Improved array indexing
242756f065f0 Minor NEWS/FAQ update David Bateman <dbateman@free.fr> parents: 8225 diff changeset	110 The underlying code used for indexing of arrays has been completely
242756f065f0 Minor NEWS/FAQ update David Bateman <dbateman@free.fr> parents: 8225 diff changeset	111 rewritten and so the indexing of arrays is now significantly faster.
242756f065f0 Minor NEWS/FAQ update David Bateman <dbateman@free.fr> parents: 8225 diff changeset	112
8370 34960ba08a81 document more new features in the NEWS file Jaroslav Hajek <highegg@gmail.com> parents: 8292 diff changeset	113 ** 64-bit integer arithmetic
34960ba08a81 document more new features in the NEWS file Jaroslav Hajek <highegg@gmail.com> parents: 8292 diff changeset	114 Arithmetic with 64-bit integers (int64 and uint64 types) is fully supported,
34960ba08a81 document more new features in the NEWS file Jaroslav Hajek <highegg@gmail.com> parents: 8292 diff changeset	115 with saturation semantics like the other integer types. Most of the integer
34960ba08a81 document more new features in the NEWS file Jaroslav Hajek <highegg@gmail.com> parents: 8292 diff changeset	116 arithmetic operations was rewritten to exploit integer arithmetic in the CPU
34960ba08a81 document more new features in the NEWS file Jaroslav Hajek <highegg@gmail.com> parents: 8292 diff changeset	117 efficiently. As a result, performance was significantly improved.
34960ba08a81 document more new features in the NEWS file Jaroslav Hajek <highegg@gmail.com> parents: 8292 diff changeset	118
34960ba08a81 document more new features in the NEWS file Jaroslav Hajek <highegg@gmail.com> parents: 8292 diff changeset	119 ** Diagonal and permutation matrices
34960ba08a81 document more new features in the NEWS file Jaroslav Hajek <highegg@gmail.com> parents: 8292 diff changeset	120 The interpreter can now treat diagonal and permutation matrices as special
34960ba08a81 document more new features in the NEWS file Jaroslav Hajek <highegg@gmail.com> parents: 8292 diff changeset	121 objects, rather than general full matrices. Therefore, it is now possible
34960ba08a81 document more new features in the NEWS file Jaroslav Hajek <highegg@gmail.com> parents: 8292 diff changeset	122 to construct & use these matrices in linear algebra without suffering a
34960ba08a81 document more new features in the NEWS file Jaroslav Hajek <highegg@gmail.com> parents: 8292 diff changeset	123 performance penalty.
34960ba08a81 document more new features in the NEWS file Jaroslav Hajek <highegg@gmail.com> parents: 8292 diff changeset	124
34960ba08a81 document more new features in the NEWS file Jaroslav Hajek <highegg@gmail.com> parents: 8292 diff changeset	125
7990 86dae6e5b83c Initial update of NEWS for 3.2 release David Bateman <dbateman@free.fr> parents: 7279 diff changeset	126 See NEWS.3 for old news.

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