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Announce OctConf 2018 with alert-box. * _includes/header.html: Add a closeable banner to each page. * _includes/head.html: Include foundation.alert.js.

author	Kai T. Ohlhus <k.ohlhus@gmail.com>
date	Mon, 22 Jan 2018 23:44:32 +0100
parents	e8fc61e077fc
children

rev	line source
94 e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1 <!doctype html public "-//IETF//DTD HTML Strict//EN">
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	2 <html>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	3 <head>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	4 <title> Changes in Octave version 1 </title>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	5 </head>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	6
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	7 <body>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	8 <h1> News for Octave Version 1 </h1>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	9 <hr>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	10
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	11 <h2>Summary of changes for version 1.1.1</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	12
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	13 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	14 * New built-in variables, default_return_value and
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	15 define_all_return_values.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	16
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	17 If define_all_return_values is set to "false", Octave does not do
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	18 anything special for return values that are left undefined, and
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	19 you will get an error message if you try to use them. For
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	20 example, if the function
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	21
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	22 function [x, y] = f ()
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	23 y = 1;
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	24 endfunction
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	25
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	26 is called as
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	27
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	28 octave:13> [a, b] = f ()
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	29
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	30 Octave will print an error message for the attempt to assign an
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	31 undefined value to `a'.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	32
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	33 This is incompatible with Matlab, which will define the return
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	34 variable `x' to be the empty matrix. To get the Matlab-like
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	35 behavior, you can set the variable define_all_return_values to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	36 "true" (the default is "false") and default_return_value to `[]'
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	37 (the default). Then, any return values that remain undefined when
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	38 the function returns will be initialized to `[]'.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	39
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	40 If the function is called without explicitly asking for an output,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	41 it will succeed. This behavior is compatible and unchanged from
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	42 previous versions of Octave.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	43
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	44 * New built-in variable suppress_verbose_help_message. If set to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	45 "true", Octave will not add additional help information to the end
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	46 of the output from the help command and usage messages for
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	47 built-in commands. The default value is "false".
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	48
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	49 * New built-in variable PS4 is used as the prefix of echoed input
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	50 (enabled with the --echo-input (-x) option).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	51
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	52 * The function size() now accepts an optional second argument.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	53
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	54 * Output from `save - ...' now goes through the pager.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	55
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	56 * The break statement may also be used to exit a function, for
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	57 compatibility with Matlab.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	58
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	59 * The directory tree for installing Octave is now closer to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	60 conforming with the current GNU standards.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	61
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	62 * More bug fixes.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	63 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	64
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	65 <h2>Summary of changes for version 1.1.0</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	66
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	67 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	68 * Octave now requires g++ 2.6.3 or later. This change is necessary
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	69 to make template instantiations cleaner, and to avoid having to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	70 have special cases in the code for earlier versions of gcc.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	71
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	72 * A new data structure type has been added. The implementation uses
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	73 an associative array with indices limited to strings, but the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	74 syntax is more like C-style structures. here are some examples of
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	75 using it.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	76
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	77 Elements of structures can be of any type, including structures:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	78
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	79 octave:1> x.a = 1;
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	80 octave:2> x.b = [1, 2; 3, 4];
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	81 octave:3> x.c = "string";
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	82 octave:4> x
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	83 x =
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	84
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	85 <structure: a b c>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	86
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	87 octave:5> x.a
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	88 x.a = 1
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	89 octave:6> x.b
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	90 x.b =
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	91
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	92 1 2
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	93 3 4
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	94
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	95 octave:7> x.c
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	96 x.c = string
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	97 octave:8> x.b.d = 3
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	98 x.b.d = 3
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	99 octave:9> x.b
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	100 x.b =
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	101
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	102 <structure: d>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	103
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	104 octave:10> x.b.d
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	105 x.b.d = 3
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	106
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	107 Functions can return structures:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	108
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	109 octave:1> a = rand (3) + rand (3) * I;
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	110 octave:2> function y = f (x)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	111 > y.re = real (x);
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	112 > y.im = imag (x);
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	113 > endfunction
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	114 octave:3> f (a)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	115 ans =
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	116
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	117 <structure: im re>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	118
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	119 octave:4> ans.im
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	120 ans.im =
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	121
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	122 0.093411 0.229690 0.627585
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	123 0.415128 0.221706 0.850341
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	124 0.894990 0.343265 0.384018
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	125
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	126 octave:5> ans.re
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	127 ans.re =
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	128
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	129 0.56234 0.14797 0.26416
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	130 0.72120 0.62691 0.20910
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	131 0.89211 0.25175 0.21081
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	132
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	133 Return lists can include structure elements:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	134
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	135 octave:1> [x.u, x.s, x.v] = svd ([1, 2; 3, 4])
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	136 x.u =
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	137
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	138 -0.40455 -0.91451
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	139 -0.91451 0.40455
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	140
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	141 x.s =
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	142
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	143 5.46499 0.00000
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	144 0.00000 0.36597
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	145
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	146 x.v =
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	147
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	148 -0.57605 0.81742
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	149 -0.81742 -0.57605
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	150
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	151 octave:8> x
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	152 x =
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	153
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	154 <structure: s u v>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	155
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	156 This feature should be considered experimental, but it seems to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	157 work ok. Suggestions for ways to improve it are welcome.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	158
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	159 * Octave now supports a limited form of exception handling modelled
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	160 after the unwind-protect form of Lisp:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	161
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	162 unwind_protect
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	163 BODY
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	164 unwind_protect_cleanup
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	165 CLEANUP
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	166 end_unwind_protect
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	167
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	168 Where BODY and CLEANUP are both optional and may contain any
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	169 Octave expressions or commands. The statements in CLEANUP are
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	170 guaranteed to be executed regardless of how control exits BODY.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	171
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	172 This is useful to protect temporary changes to global variables
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	173 from possible errors. For example, the following code will always
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	174 restore the original value of the built-in variable
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	175 do_fortran_indexing even if an error occurs while performing the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	176 indexing operation.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	177
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	178 save_do_fortran_indexing = do_fortran_indexing;
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	179 unwind_protect
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	180 do_fortran_indexing = "true";
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	181 elt = a (idx)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	182 unwind_protect_cleanup
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	183 do_fortran_indexing = save_do_fortran_indexing;
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	184 end_unwind_protect
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	185
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	186 Without unwind_protect, the value of do_fortran_indexing would not
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	187 be restored if an error occurs while performing the indexing
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	188 operation because evaluation would stop at the point of the error
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	189 and the statement to restore the value would not be executed.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	190
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	191 * Recursive directory searching has been implemented using Karl
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	192 Berry's kpathsea library. Directories below path elements that
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	193 end in // are searched recursively for .m files.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	194
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	195 * Octave now waits for additional input when a pair of parentheses
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	196 is `open' instead of giving an error. This allows one to write
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	197 statements like this
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	198
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	199 if (big_long_variable_name == other_long_variable_name
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	200 \|\| not_so_short_variable_name > 4
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	201 && y > x)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	202 some (code, here);
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	203
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	204 without having to clutter up the if statement with continuation
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	205 characters.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	206
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	207 * Continuation lines are now allowed in string constants and are
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	208 handled correctly inside matrix constants.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	209
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	210 * Both `...{whitespace}\n' and `\{whitespace}\n' can be used to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	211 introduce continuation lines, where {whitespace} may include
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	212 spaces, tabs and comemnts.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	213
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	214 * The script directory has been split up by topic.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	215
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	216 * Dynamic linking mostly works with dld. The following limitations
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	217 are known problems:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	218
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	219 -- Clearing dynamically linked functions doesn't work.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	220
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	221 -- Dynamic linking only works with dld, which has not been ported
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	222 to very many systems yet.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	223
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	224 -- Configuring with --enable-lite-kernel seems to mostly work to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	225 make nonessential built-in functions dynamically loaded, but
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	226 there also seem to be some problems. For example, fsolve seems
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	227 to always return info == 3. This is difficult to debug since
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	228 gdb won't seem to allow breakpoints to be set inside
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	229 dynamically loaded functions.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	230
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	231 -- Octave uses a lot of memory if the dynamically linked functions
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	232 are compiled with -g. This appears to be a limitation with
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	233 dld, and can be avoided by not using -g to compile functions
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	234 that will be linked dynamically.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	235
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	236 * fft2 and ifft2 are now built-in functions.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	237
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	238 * The `&&' and `\|\|' logical operators are now evaluated in a
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	239 short-circuit fashion and work differently than the element by
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	240 element operators `&' and `\|'. See the Octave manual for more
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	241 details.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	242
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	243 * Expressions like 1./m are now parsed as 1 ./ m, not 1. / m.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	244
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	245 * The replot command now takes the same arguments as gplot or
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	246 gsplot (except ranges, which cannot be respecified with replot
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	247 (yet)) so you can add additional lines to existing plots.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	248
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	249 * The hold command has been implemented.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	250
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	251 * New function `clearplot' clears the plot window. The name `clg'
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	252 is aliased to `clearplot' for compatibility with Matlab.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	253
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	254 * The commands `gplot clear' and `gsplot clear' are equivalent to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	255 `clearplot'. (Previously, `gplot clear' would evaluate `clear' as
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	256 an ordinary expression and clear all the visible variables.)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	257
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	258 * The Matlab-style plotting commands have been improved. They now
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	259 accept line-style arguments, multiple x-y pairs, and other plot
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	260 option flags. For example,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	261
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	262 plot (x, y, "@12", x, y2, x, y3, "4", x, y4, "+")
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	263
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	264 results in a plot with
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	265
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	266 y plotted with points of type 2 ("+") and color 1 (red).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	267 y2 plotted with lines.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	268 y3 plotted with lines of color 4.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	269 y4 plotted with points which are "+"s.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	270
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	271 the help message for `plot' and `plot_opt' provide full
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	272 descriptions of the options.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	273
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	274 * NaN is now dropped from plot data, and Inf is converted to a
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	275 very large value before calling gnuplot.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	276
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	277 * Improved load and save commands:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	278
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	279 -- The save and load commands can now read and write a new binary
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	280 file format. Conversion to and from IEEE big and little endian
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	281 formats is handled automatically. Conversion for other formats
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	282 has not yet been implemented.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	283
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	284 -- The load command can now read Matlab .mat files, though it is
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	285 not yet able to read sparse matrices or handle conversion for
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	286 all data formats.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	287
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	288 -- The save command can write Matlab .mat files.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	289
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	290 -- The load command automatically determines the save format
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	291 (binary, ascii, or Matlab binary).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	292
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	293 -- The default format for the save command is taken from the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	294 built-in variable `default_save_format'.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	295
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	296 -- The save and load commands now both accept a list of globbing
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	297 patterns so you can easily load a list of variables from a
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	298 file.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	299
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	300 -- The load command now accepts the option -list, for listing the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	301 variable names without actually loading the data. With
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	302 -verbose, it prints a long listing.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	303
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	304 -- The load command now accepts the option -float-binary, for
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	305 saving floating point data in binary files in single precision.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	306
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	307 * who and whos now accept a list of globbing patterns so you can
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	308 limit the lists of variables and functions to those that match a
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	309 given set of patterns.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	310
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	311 * New functions for manipulating polynomials
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	312
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	313 compan -- companion matrix corresponding to polynomial coefficients
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	314 conv -- convolve two vectors
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	315 deconv -- deconvolve two vectors
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	316 roots -- find the roots of a polynomial
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	317 poly -- characteristic polynomial of a matrix
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	318 polyderiv -- differentiate a polynomial
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	319 polyinteg -- integrate a polynomial
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	320 polyreduce -- reduce a polynomial to minimum number of terms
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	321 polyval -- evaluate a polynomial at a point
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	322 polyvalm -- evaluate a polynomial in the matrix sense
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	323 residue -- partial fraction expansion corresponding to the ratio
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	324 of two polynomials
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	325
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	326 * New functions for manipulating sets
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	327
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	328 create_set -- create a set of unique values
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	329 complement -- find the complement of two sets
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	330 intersection -- find the intersection of two sets
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	331 union -- find the union of two sets
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	332
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	333 * New elementary functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	334
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	335 acot acoth acsc acsch
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	336 asec asech cot coth
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	337 csc csch log2 sec
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	338 sech
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	339
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	340 * New special functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	341
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	342 beta -- beta function
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	343 betai -- incomplete beta function
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	344 gammai -- incomplete gamma function
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	345
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	346 * New image processing functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	347
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	348 colormap -- set and return current colormap
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	349 gray -- set a gray colormap
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	350 gray2ind -- image format conversion
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	351 image -- display an image
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	352 imagesc -- scale and display an image
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	353 imshow -- display images
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	354 ind2gray -- image format conversion
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	355 ind2rgb -- image format conversion
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	356 loadimage -- load an image from a file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	357 ntsc2rgb -- image format conversion
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	358 ocean -- set a color colormap
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	359 rgb2ind -- image format conversion
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	360 rgb2ntsc -- image format conversion
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	361 saveimage -- save an image to a file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	362
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	363 * New time and date funcitons:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	364
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	365 tic -- set wall-clock timer
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	366 toc -- get elapsed wall-clock time, since timer last set
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	367 etime -- another way to get elapsed wall-clock time
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	368 cputime -- get CPU time used since Octave started
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	369 is_leap_year -- is the given year a leap year?
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	370
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	371 * Other new functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	372
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	373 bug_report -- submit a bug report to the bug-octave mailing list
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	374
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	375 toascii -- convert a string to a matrix of ASCII character codes
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	376
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	377 octave_tmp_file -- generate a unique temporary file name
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	378
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	379 undo_string_escapes -- replace special characters in a string by
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	380 their backslash forms
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	381
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	382 is_struct -- determine whether something is a structure data type
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	383
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	384 feof -- check EOF condition for a specified file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	385 ferror -- check error state for a specified file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	386 fread -- read binary data from a file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	387 fwrite -- write binary data to a file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	388
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	389 file_in_path -- check to see if named file exists in given path
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	390
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	391 kbhit -- get a single character from the terminal
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	392
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	393 axis -- change plot ranges
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	394 hist -- plot histograms
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	395
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	396 diary -- save commands and output to a file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	397
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	398 type -- show the definition of a function
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	399 which -- print the type of an identifier or the location of a
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	400 function file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	401
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	402 isieee -- Returns 1 if host uses IEEE floating point
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	403 realmax -- Returns largest floating point number
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	404 realmin -- Returns smallest floating point number
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	405
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	406 gcd -- greatest common divisor
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	407 lcm -- least common multiple
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	408
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	409 null -- orthonormal basis of the null space of a matrix
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	410 orth -- orthonormal basis of the range space of a matrix
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	411
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	412 fft2 -- two-dimensional fast fourier transform
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	413 ifft2 -- two-dimensional inverse fast fourier transform
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	414 filter -- digital filter
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	415 fftfilt -- filter using fft
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	416 fftconv -- convolve to vectors using fft
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	417 sinc -- returns sin(pix)/(pix)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	418 freqz -- compute the frequency response of a filter
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	419
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	420 * The meaning of nargin (== args.length ()) in built-in functions
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	421 has been changed to match the meaning of nargin in user-defined
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	422 functions.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	423
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	424 * Variable return lists. Octave now has a real mechanism for
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	425 handling functions that return an unspecified number of values,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	426 so it is no longer necessary to place an upper bound on the number
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	427 of outputs that a function can produce.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	428
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	429 Here is an example of a function that uses the new syntax to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	430 produce n values:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	431
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	432 function [...] = foo (n)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	433 for i = 1:n
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	434 vr_val (i * x);
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	435 endfor
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	436 endfunction
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	437
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	438 * New keyword, all_va_args, that allows the entire list of va_args
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	439 to be passed to another function. For example, given the functions
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	440
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	441 function f (...)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	442 while (nargin--)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	443 disp (va_arg ())
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	444 endwhile
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	445 endfunction
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	446 function g (...)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	447 f ("begin", all_va_args, "end")
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	448 endfunction
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	449
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	450 the statement
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	451
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	452 g (1, 2, 3)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	453
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	454 prints
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	455
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	456 begin
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	457 1
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	458 2
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	459 3
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	460 end
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	461
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	462 all_va_args may be used more than once, but can only be used
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	463 within functions that take a variable number of arguments.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	464
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	465 * If given a second argument, svd now returns an economy-sized
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	466 decomposition, eliminating the unecessary rows or columns of U or
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	467 V.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	468
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	469 * The max and min functions correctly handle complex matrices in
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	470 which some columns contain real values only.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	471
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	472 * The find function now handles 2 and 3 output arguments.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	473
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	474 * The qr function now allows computation of QR with pivoting.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	475
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	476 * hilb() is much faster for large matrices.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	477
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	478 * computer() is now a built-in function.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	479
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	480 * pinv() is now a built-in function.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	481
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	482 * The output from the history command now goes through the pager.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	483
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	484 * If a function is called without assigning the result, nargout is
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	485 now correctly set to 0.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	486
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	487 * It is now possible to write functions that only set some return
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	488 values. For example, calling the function
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	489
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	490 function [x, y, z] = f () x = 1; z = 2; endfunction
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	491
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	492 as
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	493
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	494 [a, b, c] = f ()
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	495
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	496 produces:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	497
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	498 a = 1
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	499
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	500 b = [](0x0)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	501
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	502 c = 2
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	503
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	504 * The shell_cmd function has been renamed to system (the name
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	505 shell_cmd remains for compatibility). It now returns [output, status].
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	506
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	507 * New built-in variable `OCTAVE_VERSION'. Also a new function,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	508 version, for compatibility with Matlab.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	509
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	510 * New built-in variable `automatic_replot'. If it is "true", Octave
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	511 will automatically send a replot command to gnuplot each time the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	512 plot changes. Since this is fairly inefficient, the default value
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	513 is "false".
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	514
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	515 * New built-in variable `whitespace_in_literal_matrix' allows some
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	516 control over how Octave decides to convert spaces to commas in
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	517 matrix expressions like `[m (1)]'.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	518
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	519 If the value of `whitespace_in_literal_matrix' is "ignore", Octave
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	520 will never insert a comma or a semicolon in a literal matrix list.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	521 For example, the expression `[1 2]' will result in an error
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	522 instead of being treated the same as `[1, 2]', and the expression
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	523
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	524 [ 1, 2,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	525 3, 4 ]
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	526
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	527 will result in the vector [1 2 3 4] instead of a matrix.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	528
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	529 If the value of `whitespace_in_literal_matrix' is "traditional",
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	530 Octave will convert spaces to a comma between identifiers and `('.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	531 For example, given the matrix
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	532
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	533 m = [3 2]
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	534
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	535 the expression
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	536
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	537 [m (1)]
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	538
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	539 will be parsed as
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	540
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	541 [m, (1)]
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	542
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	543 and will result in
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	544
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	545 [3 2 1]
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	546
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	547 and the expression
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	548
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	549 [ 1, 2,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	550 3, 4 ]
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	551
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	552 will result in a matrix because the newline character is converted
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	553 to a semicolon (row separator) even though there is a comma at the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	554 end of the first line (trailing commas or semicolons are ignored).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	555 This is apparently how Matlab behaves.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	556
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	557 Any other value for `whitespace_in_literal_matrix' results in
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	558 behavior that is the same as traditional, except that Octave does
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	559 not convert spaces to a comma between identifiers and `('.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	560 For example, the expression
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	561
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	562 [m (1)]
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	563
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	564 will produce 3. This is the way Octave has always behaved.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	565
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	566 * Line numbers in error messages for functions defined in files and
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	567 for script files now correspond to the file line number, not the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	568 number of lines after the function keyword appeared.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	569
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	570 * Octave now extracts help from script files. The comments must
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	571 come before any other statements in the file.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	572
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	573 * In function files, the first block of comments in the file will
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	574 now be interpreted as the help text if it doesn't look like the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	575 Octave copyright notice. Otherwise, Octave extracts the first set
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	576 of comments after the function keyword.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	577
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	578 * The function clock is more accurate on systems that have the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	579 gettimeofday() function.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	580
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	581 * The standard output stream is now automatically flushed before
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	582 reading from stdin with any of the *scanf() functions.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	583
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	584 * Expanded reference card.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	585
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	586 * The Octave distribution now includes a frequently asked questions
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	587 file, with answers. Better answers and more questions (with
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	588 answers!) are welcome.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	589
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	590 * New option --verbose. If Octave is invoked with --verbose and not
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	591 --silent, a message is printed if an octaverc file is read while
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	592 Octave is starting.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	593
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	594 * An improved configure script generated by Autoconf 2.0.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	595
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	596 * Lots of bug fixes.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	597 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	598
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	599 <h2>Summary of changes for version 1.0</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	600
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	601 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	602 * C-style I/O functions now handle files referenced by name or by
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	603 number more consistently.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	604 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	605
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	606 <h2>Summary of changes for version 0.83</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	607
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	608 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	609 * Loading global symbols should work now.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	610
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	611 * Clearing the screen doesn't reprint the prompt unnecessarily.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	612
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	613 * The operations <complex scalar> OP <real matrix> for OP == +, -,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	614 *, or ./ no longer crash Octave.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	615
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	616 * More portability and configuration fixes.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	617 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	618
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	619 <h2>Summary of changes for version 0.82</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	620
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	621 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	622 * Octave now comes with a reference card.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	623
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	624 * The manual has been improved, but more work remains to be done.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	625
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	626 * The atanh function now works for complex arguments.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	627
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	628 * The asin, acos, acosh, and atanh functions now work properly when
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	629 given real-valued arguments that produce complex results.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	630
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	631 * SEEK_SET, SEEK_CUR, and SEEK_END are now constants.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	632
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	633 * The `using' qualifier now works with gplot and gsplot when the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	634 data to plot is coming directly from a file.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	635
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	636 * The strcmp function now works correctly for empty strings.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	637
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	638 * Eliminated bogus parse error for M-files that don't end with `end'
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	639 or `endfunction'.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	640
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	641 * For empty matrices with one nonzero dimension, the +, -, .*, and
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	642 ./ operators now correctly preserve the dimension.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	643
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	644 * Octave no longer crashes if you type ^D at the beginning of a line
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	645 in the middle of defining a loop or if statement.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	646
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	647 * On AIX systems, Back off on indexing DiagArray via Proxy class to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	648 avoid gcc (or possibly AIX assembler?) bug.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	649
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	650 * Various other bug and portability fixes.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	651 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	652
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	653 <h2>Summary of changes for version 0.81</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	654
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	655 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	656 * Octave no longer dumps core if you try to define a function in
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	657 your .octaverc file.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	658
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	659 * Fixed bug in Array class that resulted in bogus off-diagonal
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	660 elements when computing eigenvalue and singular value
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	661 decompositions.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	662
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	663 * Fixed bug that prevented lsode from working on the SPARCstation,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	664 at least with some versions of Sun's f77. This bug was introduced
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	665 in 0.80, when I changed LSODE to allow the user to abort the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	666 integration from within the RHS function.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	667
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	668 * Fixed bug that prevented global attribute of variables from being
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	669 saved with save(), and another that prevented load() from working
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	670 at all.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	671 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	672
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	673 <h2>Summary of changes for version 0.80</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	674
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	675 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	676 * I have started working on a manual for the C++ classes. At this
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	677 point, it is little more than a list of function names. If you
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	678 would like to volunteer to help work on this, please contact
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	679 bug-octave@bevo.che.wisc.edu.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	680
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	681 * The patterns accepted by the save and clear commands now work like
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	682 file name globbing patterns instead of regular expressions. I
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	683 apologize for any inconvenience this change may cause, but file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	684 name globbing seems like a more reasonable style of pattern
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	685 matching for this purpose.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	686
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	687 * It is now possible to specify tolerances and other optional inputs
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	688 for dassl, fsolve, lsode, npsol, qpsol, and quad. For each of
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	689 these functions, there is a corresponding function X_options,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	690 which takes a keyword and value arguments. If invoked without any
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	691 arguments, the X_options functions print a list of possible
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	692 keywords and current values. For example,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	693
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	694 npsol_options ()
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	695
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	696 prints a list of possible options with values, and
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	697
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	698 npsol_options ("major print level", 10)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	699
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	700 sets the major print level to 10.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	701
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	702 The keyword match is not case sensitive, and the keywords may be
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	703 abbreviated to the shortest unique match. For example,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	704
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	705 npsol_options ("ma p", 10)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	706
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	707 is equivalent to the statement shown above.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	708
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	709 * The new built-in variable save_precision can be used to set the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	710 number of digits preserved by the ASCII save command.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	711
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	712 * Assignment of [] now works in most cases to allow you to delete
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	713 rows or columns of matrices and vectors. For example, given a
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	714 4x5 matrix A, the assignment
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	715
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	716 A (3, :) = []
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	717
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	718 deletes the third row of A, and the assignment
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	719
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	720 A (:, 1:2:5) = []
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	721
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	722 deletes the first, third, and fifth columns.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	723
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	724 * Variable argument lists. Octave now has a real mechanism for
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	725 handling functions that take an unspecified number of arguments,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	726 so it is no longer necessary to place an upper bound on the number
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	727 of optional arguments that a function can accept.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	728
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	729 Here is an example of a function that uses the new syntax to print
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	730 a header followed by an unspecified number of values:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	731
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	732 function foo (heading, ...)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	733 disp (heading);
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	734 va_start ();
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	735 while (--nargin)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	736 disp (va_arg ());
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	737 endwhile
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	738 endfunction
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	739
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	740 Note that the argument list must contain at least one named
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	741 argument (this restriction may eventually be removed), and the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	742 ellipsis must appear as the last element of the argument list.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	743
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	744 Calling va_start() positions an internal pointer to the first
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	745 unnamed argument and allows you to cycle through the arguments
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	746 more than once. It is not necessary to call va_start() if you
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	747 do not plan to cycle through the arguments more than once.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	748
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	749 * Recursive functions should work now.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	750
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	751 * The environment variable OCTAVE_PATH is now handled in the same
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	752 way as TeX handles TEXINPUTS. If the path starts with `:', the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	753 standard path is prepended to the value obtained from the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	754 environment. If it ends with `:' the standard path is appended to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	755 the value obtained from the environment.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	756
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	757 * New functions, from Kurt Hornik (hornik@neuro.tuwien.ac.at) and
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	758 the Department of Probability Theory and Statistics TU Wien,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	759 Austria:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	760
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	761 corrcoef -- corrcoef (X, Y) is the correlation between the i-th
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	762 variable in X and the j-th variable in Y
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	763 corrcoef (X) is corrcoef (X, X)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	764 cov -- cov (X, Y) is the covariance between the i-th
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	765 variable in X and the j-th variable in Y
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	766 cov (X) is cov (X, X)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	767 gls -- generalized least squares estimation
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	768 kurtosis -- kurtosis(x) = N^(-1) std(x)^(-4) SUM_i (x(i)-mean(x))^4 - 3
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	769 If x is a matrix, return the row vector containing
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	770 the kurtosis of each column
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	771 mahalanobis -- returns Mahalanobis' D-square distance between the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	772 multivariate samples X and Y, which must have the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	773 same number of components (columns), but may have
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	774 a different number of observations (rows)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	775 ols -- ordinary least squares estimation
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	776 pinv -- returns the pseudoinverse of X; singular values
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	777 less than tol are ignored
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	778 skewness -- skewness (x) = N^(-1) std(x)^(-3) SUM_i (x(i)-mean(x))^3
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	779 if x is a matrix, return the row vector containing
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	780 the skewness of each column
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	781
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	782 * Errors in user-supplied functions called from dassl, fsolve,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	783 lsode, npsol, and quad are handled more gracefully.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	784
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	785 * Programming errors in the use of the C++ classes within Octave
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	786 should no longer cause Octave to abort. Instead, Octave's error
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	787 handler function is called and execution continues as best as is
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	788 possible. This should result in eventually returning control to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	789 the top-level Octave prompt. (It would be nice to have a real
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	790 exception handling mechanism...)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	791
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	792 * A number of memory leaks have been eliminated. Thanks to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	793 Fong Kin Fui <fui@ee.nus.sg> for reporting them.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	794
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	795 * The C++ matrix classes are now derived from a generic
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	796 template-based array class.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	797
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	798 * The readline function operate-and-get-next (from bash) is now
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	799 available and bound to C-O by default.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	800
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	801 * Octave now uses the version of readline currently distributed with
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	802 bash-1.13. On some systems, interactive invocations of Octave
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	803 will now blink the cursor to show matching parens.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	804
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	805 * By default, include files are now installed in
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	806 $prefix/include/octave instead of $prefix/include.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	807
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	808 * Octave now uses a config.h file instead of putting all defines on
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	809 the compiler command line.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	810 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	811
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	812 <h2>Summary of changes for version 0.79</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	813
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	814 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	815 * New control systems functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	816
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	817 dgram -- Returns the discrete controllability and observability gramian.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	818 dlqr -- Discrete linear quadratic regulator design.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	819 dlqe -- Discrete linear quadratic estimator (Kalman Filter) design.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	820 c2d -- Convert continuous system description to discrete time
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	821 description assuming zero-order hold and given sample time.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	822
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	823 * The max (min) functions can now return the index of the max (min)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	824 value as a second return value.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	825 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	826
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	827 <h2>Summary of changes for version 0.78</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	828
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	829 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	830 * Octave's handling of global variables has been completely
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	831 rewritten. To access global variables inside a function, you must
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	832 now declare them to be global within the function body. Likewise,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	833 if you do not declare a variable as global at the command line,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	834 you will not have access to it within a function, even if it is
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	835 declared global there. For example, given the function
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	836
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	837 function f ()
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	838 global x = 1;
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	839 y = 2;
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	840 endfunction
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	841
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	842 the global variable `x' is not visible at the top level until the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	843 command
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	844
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	845 octave:13> global x
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	846
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	847 has been evaluated, and the variable `y' remains local to the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	848 function f() even if it is declared global at the top level.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	849
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	850 Clearing a global variable at the top level will remove its global
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	851 scope and leave it undefined. For example,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	852
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	853 octave:1> function f () # Define a function that accesses
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	854 > global x; # the global variable `x'.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	855 > x
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	856 > endfunction
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	857 octave:2> global x = 1 # Give the variable `x' a value.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	858 octave:3> f () # Evaluating the function accesses the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	859 x = 1 # global `x'.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	860 octave:4> clear x # Remove `x' from global scope, clear value.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	861 octave:5> x = 2 # Define new local `x' at the top level
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	862 x = 2
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	863 octave:6> f # The global `x' is no longer defined.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	864 error: `x' undefined near line 1 column 25
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	865 error: evaluating expression near line 1, column 25
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	866 error: called from `f'
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	867 octave:7> x # But the local one is.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	868 x = 2
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	869
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	870 * The new function, `is_global (string)' returns 1 if the variable
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	871 named by string is globally visible. Otherwise, returns 0.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	872
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	873 * The implementation of `who' has changed. It now accepts the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	874 following options:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	875
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	876 -b -builtins -- display info for built-in variables and functions
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	877 -f -functions -- display info for currently compiled functions
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	878 -v -variables -- display info for user variables
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	879 -l -long -- display long info
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	880
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	881 The long output looks like this:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	882
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	883 octave:5> who -l
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	884
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	885 *** currently compiled functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	886
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	887 prot type rows cols name
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	888 ==== ==== ==== ==== ====
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	889 wd user function - - f
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	890
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	891 *** local user variables:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	892
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	893 prot type rows cols name
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	894 ==== ==== ==== ==== ====
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	895 wd real scalar 1 1 y
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	896
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	897 *** globally visible user variables:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	898
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	899 prot type rows cols name
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	900 ==== ==== ==== ==== ====
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	901 wd complex matrix 13 13 x
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	902
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	903 where the first character of the `protection' field is `w' if the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	904 symbol can be redefined, and `-' if it has read-only access. The
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	905 second character may be `d' if the symbol can be deleted, or `-'
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	906 if the symbol cannot be cleared.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	907
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	908 * The new built-in variable ignore_function_time_stamp can be used
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	909 to prevent Octave from calling stat() each time it looks up
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	910 functions defined in M-files. If set to "system", Octave will not
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	911 automatically recompile M-files in subdirectories of
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	912 $OCTAVE_HOME/lib/VERSION if they have changed since they were last
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	913 compiled, but will recompile other M-files in the LOADPATH if they
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	914 change. If set to "all", Octave will not recompile any M-files
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	915 unless their definitions are removed with clear. For any other
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	916 value of ignore_function_time_stamp, Octave will always check to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	917 see if functions defined in M-files need to recompiled. The
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	918 default value of ignore_function_time_stamp is "system".
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	919
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	920 * The new built-in variable EDITOR can be used to specify the editor
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	921 for the edit_history command. It is set to the value of the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	922 environment variable EDITOR, or `vi' if EDITOR is not set, or is
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	923 empty.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	924
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	925 * There is a new built-in variable, INFO_FILE, which is used as the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	926 location of the info file. Its initial value is
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	927 $OCTAVE_HOME/info/octave.info, so `help -i' should now work
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	928 provided that OCTAVE_HOME is set correctly, even if Octave is
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	929 installed in a directory different from that specified at compile
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	930 time.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	931
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	932 * There is a new command line option, --info-file FILE, that may be
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	933 used to set Octave's idea of the location of the info file. It
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	934 will override any value of OCTAVE_INFO_FILE found in the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	935 environment, but not any INFO_FILE="filename" commands found in
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	936 the system or user startup files.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	937
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	938 * Octave's Info reader will now recognize gzipped files that have
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	939 names ending in `.gz'.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	940
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	941 * The save command now accepts regular expressions as arguments.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	942 Note that these patterns are regular expressions, and do not work
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	943 like filename globbing. For example, given the variables `a',
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	944 `aa', and `a1', the command `save a*' saves `a' and `aa' but not
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	945 `a1'. To match all variables beginning with `a', you must use an
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	946 expression like `a.*' (match all sequences beginning with `a'
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	947 followed by zero or more characters).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	948
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	949 * Line and column information is included in more error messages.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	950 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	951
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	952 <h2>Summary of changes for version 0.77</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	953
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	954 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	955 * Improved help. The command `help -i topic' now uses the GNU Info
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	956 browser to display help for the given topic directly from the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	957 Texinfo documenation.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	958
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	959 * New function: chol -- Cholesky factorization.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	960 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	961
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	962 <h2>Summary of changes for version 0.76</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	963
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	964 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	965 * Better run-time error messages. Many now include line and column
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	966 information indicating where the error occurred. Octave will also
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	967 print a traceback for errors occurring inside functions. If you
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	968 find error messages that could use improvement, or errors that
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	969 Octave fails to catch, please send a bug report to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	970 bug-octave@bevo.che.wisc.edu.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	971
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	972 * If gplot (or gsplot) is given a string to plot, and the string
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	973 does not name a file, Octave will pass the string along to gnuplot
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	974 directly. This allows commands like
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	975
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	976 gplot "sin (x)" w l, data w p
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	977
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	978 to work (assuming that data is a variable containing a matrix of
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	979 values).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	980
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	981 * Long options (--help, --version, etc.) are supported.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	982 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	983
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	984 <h2>Summary of changes for version 0.75</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	985
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	986 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	987 * The documentation is much more complete, but still could use a lot
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	988 of work.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	989
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	990 * The history function now prints line numbers by default. The
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	991 command `history -q' will omit them.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	992
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	993 * The clear function now accepts regular expressions.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	994
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	995 * If gplot (or gsplot) is given a string to plot, and the string
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	996 names a file, Octave attempts to plot the contents of the file.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	997
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	998 * New functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	999
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1000 history:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1001
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1002 run_history -- run commands from the history list.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1003 edit_history -- edit commands from the history list with your
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1004 favorite editor.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1005
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1006 linear algebra:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1007
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1008 balance -- Balancing for algebraic and generalized
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1009 eigenvalue problems.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1010 givens -- Givens rotation.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1011 is_square -- Check to see if a matrix is square.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1012 qzhess -- QZ decomposition of the matrix pencil (a - lambda b).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1013 qzval -- Generalized eigenvalues for real matrices.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1014 syl -- Sylvester equation solver.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1015
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1016 control systems:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1017
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1018 is_symmetric -- Check to see if a matrix is symmetric.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1019 abcddim -- Check dimensions of linear dynamic system [A,B,C,D].
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1020 is_controllable -- Check to see if [A,B,C,D] is controllable.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1021 is_observable -- Check to see if [A,B,C,D] is observable.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1022 are -- Solve algebraic Ricatti equation.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1023 dare -- Solve discrete-time algebraic Ricatti equation.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1024 lqe -- Kalman filter design for continuous linear system.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1025 lqr -- Linear Quadratic Regulator design.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1026 lyap -- Solve Lyapunov equation.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1027 dlyap -- Solve discrete Lyapunov equation.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1028 tzero -- Compute the transmission zeros of [A,B,C,D].
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1029 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1030
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1031 <h2>Summary of changes for version 0.74</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1032
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1033 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1034 * Formal parameters to functions are now always considered to be
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1035 local variables, so things like
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1036
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1037 global x = 0
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1038 global y = 0
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1039 function y = f (x) x = 1; y = x; end
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1040 f (x)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1041
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1042 result in the function returning 1, with the global values of x
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1043 and y unchanged.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1044
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1045 * Multiple assignment expressions are now allowed to take indices,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1046 so things like
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1047
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1048 octave:13> [a([1,2],[3,4]), b([5,6],[7,8])] = lu ([1,2;3,4])
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1049
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1050 will work correctly.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1051 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1052
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1053 <h2>Summary of changes for version 0.73</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1054
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1055 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1056 * Saving and loading global variables works correctly now.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1057
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1058 * The save command no longer saves built-in variables.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1059
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1060 * Global variables are more reliable.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1061
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1062 * Matrices may now have one or both dimensions zero, so that
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1063 operations on empty matrices are now handled more consistently.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1064
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1065 By default, dimensions of the empty matrix are now printed along
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1066 with the empty matrix symbol, `[]'. For example:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1067
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1068 octave:13> zeros (3, 0)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1069 ans =
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1070
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1071 [](3x0)
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1072
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1073 The new variable `print_empty_dimensions' controls this behavior.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1074
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1075 See also Carl de Boor, An Empty Exercise, SIGNUM, Volume 25,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1076 pages 2--6, 1990, or C. N. Nett and W. M. Haddad, A
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1077 System-Theoretic Appropriate Realization of the Empty Matrix
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1078 Concept, IEEE Transactions on Automatic Control, Volume 38,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1079 Number 5, May 1993.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1080
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1081 * The right and left division operators `/' and `\' will now find a
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1082 minimum norm solution if the system is not square, or if the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1083 coefficient matrix is singular.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1084
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1085 * New functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1086
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1087 hess -- Hessenberg decomposition
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1088 schur -- Ordered Schur factorization
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1089 perror -- print error messages corresponding to error codes
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1090 returned from the functions fsolve, npsol, and qpsol
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1091 (with others to possibly be added later).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1092
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1093 * Octave now prints a warning if it finds anything other than
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1094 whitespace or comments after the final `end' or `endfunction'
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1095 statement.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1096
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1097 * The bodies of functions, and the for, while, and if commands are
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1098 now allowed to be empty.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1099
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1100 * Support for Gill and Murray's QPSOL has been added. Like NPSOL,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1101 QPSOL is not freely redistributable either, so you must obtain
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1102 your own copy to be able to use this feature. More information
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1103 about where to find QPSOL and NPSOL are in the file README.NLP.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1104 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1105
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1106 <h2>Summary of changes for version 0.72</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1107
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1108 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1109 * For numeric output, columns are now lined up on the decimal point.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1110 (This requires libg++-2.3.1 or later to work correctly).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1111
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1112 * If octave is running interactively and the output intended for the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1113 screen is longer than one page and a pager is available, it is
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1114 sent to the pager through a pipe. You may specify the program to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1115 use as the pager by setting the variable PAGER. PAGER may also
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1116 specify a command pipeline.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1117
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1118 * Spaces are not always significant inside square brackets now, so
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1119 commands like
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1120
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1121 [ linspace (1, 2) ]
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1122
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1123 will work. However, some possible sources of confusion remain
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1124 because Octave tries (possibly too hard) to determine exactly what
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1125 operation is intended from the context surrounding an operator.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1126 For example:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1127
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1128 -- In the command
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1129
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1130 [ 1 - 1 ]
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1131
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1132 the `-' is treated as a binary operator and the result is the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1133 scalar 0, but in the command
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1134
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1135 [ 1 -1 ]
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1136
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1137 the `-' is treated as a unary operator and the result is the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1138 vector [ 1 -1 ].
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1139
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1140 -- In the command
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1141
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1142 a = 1; [ 1 a' ]
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1143
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1144 the single quote character `'' is treated as a transpose operator
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1145 and the result is the vector [ 1 1 ], but in the command
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1146
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1147 a = 1; [ 1 a ' ]
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1148
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1149 an error message indicating an unterminated string constant is
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1150 printed.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1151
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1152 * Assignments are just expressions now, so they are valid anywhere
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1153 other expressions are. This means that things like
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1154
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1155 if (a = n < m) ... endif
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1156
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1157 are valid. This is parsed as: compare `n < m', assign the result
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1158 to the variable `a', and use it as the test expression in the if
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1159 statement.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1160
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1161 To help avoid errors where `=' has been used but `==' was
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1162 intended, Octave issues a warning suggesting parenthesis around
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1163 assignments used as truth values. You can suppress this warning
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1164 by adding parenthesis, or by setting the value of the new built-in
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1165 variable `warn_assign_as_truth_value' to 'false' (the default
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1166 value is 'true').
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1167
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1168 This is also true for multiple assignments, so expressions like
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1169
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1170 [a, b, c] = [u, s, v] = expression
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1171
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1172 are now possible. If the expression is a function, nargout is set
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1173 to the number of arguments for the right-most assignment. The
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1174 other assignments need not contain the same number of elements.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1175 Extra left hand side variables in an assignment become undefined.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1176
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1177 * The default line style for plots is now `lines' instead of
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1178 `points'. To change it, use the `set data style STYLE' command.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1179
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1180 * New file handling and I/O functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1181
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1182 fopen -- open a file for reading or writing
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1183 fclose -- close a file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1184 fflush -- flush output to a file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1185 fgets -- read characters from a file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1186 frewind -- set file position to the beginning of a file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1187 fseek -- set file position
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1188 ftell -- tell file position
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1189 freport -- print a report for all open files
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1190 fscanf -- read from a file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1191 sscanf -- read from a string
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1192 scanf -- read from the standard input
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1193
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1194 * New built-in variables for file and I/O functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1195
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1196 stdin -- file number corresponding to the standard input stream.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1197 stdout -- file number corresponding to the standard output stream.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1198 stderr -- file number corresponding to the standard error stream.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1199
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1200 The following may be used as the final (optional) argument for
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1201 fseek:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1202
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1203 SEEK_SET -- set position relative to the beginning of the file.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1204 SEEK_CUR -- set position relative to the current position.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1205 SEEK_END -- set position relative to the end of the file.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1206
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1207 * New function: setstr -- convert vectors or scalars to strings
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1208 (doesn't work for matrices yet).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1209
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1210 * If possible, computer now prints the system type instead of
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1211 always printing `Hi Dave, I'm a HAL-9000'.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1212
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1213 * Octave now properly saves and restores its internal state
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1214 correctly in more places. Interrupting Octave while it is
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1215 executing a script file no longer causes it to exit.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1216
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1217 * Octave now does tilde expansion on each element of the LOADPATH.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1218
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1219 * A number of memory leaks have been plugged.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1220
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1221 * Dependencies for C++ source files are now generated automatically
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1222 by g++.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1223
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1224 * There is a new command line option, -p PATH, that may be used to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1225 set Octave's loadpath from the command line. It will override any
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1226 value of OCTAVE_PATH found in the environment, but not any
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1227 LOADPATH="path" commands found in the system or user startup files.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1228
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1229 * It is now possible to override Octave's default idea of the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1230 location of the system-wide startup file (usually stored in
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1231 $(prefix)/lib/octave/octaverc) using the environment variable
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1232 OCTAVE_HOME. If OCTAVE_HOME has a value, Octave will look for
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1233 octaverc and its M-files in the directory $OCTAVE_HOME/lib/octave.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1234
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1235 This allows people who are using binary distributions (as is
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1236 common with systems like Linux) to install the real octave binary
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1237 in any directory (using a name like octave.bin) and then install
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1238 a simple script like this
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1239
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1240 #!/bin/sh
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1241 OCTAVE_HOME=/foo/bar/baz
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1242 export OCTAVE_HOME
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1243 exec octave.bin
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1244
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1245 to be invoked as octave.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1246
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1247 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1248
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1249 <h2>Summary of changes for version 0.71</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1250
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1251 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1252 * Much improved plotting facility. With this release, Octave does
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1253 not require a specially modified version of gnuplot, so gnuplot
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1254 sources are no longer distributed with Octave. For a more
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1255 detailed description of the new plotting features, see the file
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1256 PLOTTING.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1257
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1258 * New plotting commands:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1259
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1260 plot -- 2D plots
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1261 semilogx -- 2D semilog plot with logscale on the x axis
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1262 semilogy -- 2D semilog plot with logscale on the y axis
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1263 loglog -- 2D log-log plot
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1264 mesh -- 3D mesh plot
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1265 meshdom -- create matrices for 3D plotting from two vectors
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1266 contour -- contour plots of 3D data
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1267 bar -- create bar graphs
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1268 stairs -- create stairstep plots
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1269 polar -- 2D plots from theta-R data
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1270 grid -- turn plot grid lines on or off
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1271 xlabel, ylabel -- place labels on the x and y axes of 2D plots
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1272 sombrero -- demonstrate 3D plotting
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1273 gplot -- 2D plot command with gnuplot-like syntax
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1274 gsplot -- 3D plot command with gnuplot-like syntax
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1275 set -- set plot options with gnuplot syntax
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1276 show -- show plot options with gnuplot syntax
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1277 closeplot -- close stream to gnuplot process
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1278 purge_tmp_files -- delete temporary files created by plot command
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1279
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1280 * Other new commands:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1281
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1282 ls, dir -- print a directory listing
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1283 shell_cmd -- execute shell commands
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1284 keyboard -- get input from keyboard, useful for debugging
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1285 menu -- display a menu of options and ask for input
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1286 fft -- fast fourier transform
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1287 ifft -- inverse fast fourier transform
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1288
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1289 * Strings may be enclosed in either single or double quote
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1290 characters. Double quote characters are not special within single
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1291 quote strings, and single quotes are not special within double
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1292 quote strings.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1293
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1294 * Command name completion now works for M-file names too.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1295
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1296 * Better help and usage messages for many functions.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1297
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1298 * Help is now available for functions defined in M-files. The first
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1299 block of comments is taken as the text of the help message.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1300
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1301 * Numerous changes in preparation to support dynamic loading of
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1302 object files with dld.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1303
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1304 * Bug fixes to make solving DAEs with dassl actually work.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1305
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1306 * The command `save file' now saves all variables in the named file.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1307
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1308 * If do_fortran_indexing is 'true', indexing a scalar with
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1309 [1,1,1,...] (n times) replicates its value n times. The
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1310 orientation of the resulting vector depends on the value of
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1311 prefer_column_vectors.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1312
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1313 * Things like [[1,2][3,4]] no longer cause core dumps, and invalid
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1314 input like [1,2;3,4,[5,6]] now produces a diagnositic message.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1315
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1316 * The cd, save, and load commands now do tilde expansion.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1317
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1318 * It's now possible to clear global variables and functions by name.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1319
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1320 * Use of clear inside functions is now a parse error.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1321 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1322
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1323 <h2>Summary of changes for version 0.70</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1324
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1325 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1326 * Better parse error diagnostics. For interactive input, you get
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1327 messages like
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1328
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1329 octave:1> a = 3 + * 4;
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1330
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1331 parse error:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1332
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1333 a = 3 + * 4;
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1334 ^
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1335
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1336 and for script files, the message includes the file name and input
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1337 line number:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1338
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1339 octave:1> foo
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1340
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1341 parse error near line 4 of file foo.m:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1342
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1343 a = 3 + * 4;
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1344 ^
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1345
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1346 * New built-in variable PS2 which is used as the secondary prompt.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1347 The default value is '> '.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1348
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1349 * New file, octave-mode.el, for editing Octave code with GNU Emacs.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1350 This is a modified version of Matthew R. Wette's matlab-mode.el.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1351
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1352 * Better support for missing math functions.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1353
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1354 * User preferences are now cached in a global struct so we don't
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1355 have to do a symbol table lookup each time we need to know what
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1356 they are. This should mean slightly improved performance for
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1357 evaluating expressions.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1358 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1359
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1360 <h2>Summary of changes for version 0.69</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1361
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1362 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1363 * Multiple assignments are now possible, so statements like
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1364
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1365 a = b = c = 3;
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1366 a = b = c = [1,2;3,4];
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1367
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1368 or
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1369
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1370 c = (a = (b = 2) * 3 + 4) * 5
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1371
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1372 are legal, as are things that have even more bizarre effects, like
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1373
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1374 a(4:6,4:6) = b(2:3,2:3) = [1,2;3,4];
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1375
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1376 (try it).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1377
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1378 * Improved parsing of strings (but they still don't work as matrix
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1379 elements).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1380
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1381 * An M-file may now either define a function or be a list of
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1382 commands to execute.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1383
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1384 * Better detection and conditional compilation of IEEE functions
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1385 isinf, finite, and isnan.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1386
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1387 * Replacements for acosh, asinh, atanh, and gamma from the BSD math
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1388 library for those systems that don't have them.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1389 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1390
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1391 <h2>Summary of changes for version 0.68</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1392
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1393 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1394 * New functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1395
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1396 eval -- evaluate a string as a sequence of Octave commands.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1397 input -- print a prompt and get user input.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1398 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1399
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1400 <h2>Summary of changes for version 0.67</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1401
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1402 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1403 * New functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1404
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1405 find -- return the indices of nonzero elements.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1406
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1407 * Zero-one style indexing now works. For example,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1408
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1409 a = [1,2,3,4];
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1410 b = a([1,0,0,1])
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1411
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1412 sets b to the first and fourth elememnts of a.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1413
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1414 Zero-one style indexing also works for indexing the left hand side
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1415 of an assignment. For example,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1416
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1417 a = rand (1,2;3,4);
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1418 a([0,1],:) = [-1,-2]
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1419
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1420 sets the second row of a to [-1 -2]
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1421
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1422 The behavior for the ambiguous case
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1423
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1424 a = [1,2,3,4];
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1425 b = a([1,1,1,1]);
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1426
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1427 is controlled by the new global variable `prefer_zero_one_indexing'.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1428 If this variable is equal to 'true', b will be set to [1 2 3 4].
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1429 If it is false, b will be set to [1 1 1 1]. The default value is
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1430 'false'.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1431
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1432 * Using the new global variable `propagate_empty_matrices', it is
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1433 possible to have unary andy binary operations on empty matrices
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1434 return an empty matrix. The default value of this variable is
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1435 'warn', so that empty matrices are propagated but you get a
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1436 warning. Some functions, like eig and svd have also been changed
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1437 to handle this.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1438
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1439 * Empty matrices can be used in conditionals, but they always
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1440 evaluate to `false'. With propagate_empty_matrices = 'true', both
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1441 of the following expressions print 0:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1442
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1443 if [], 1, else 0, end
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1444 if ~[], 1, else 0, end
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1445
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1446 * Octave no longer converts input like `3.2 i' or `3 I' to complex
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1447 constants directly because that causes problems inside square
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1448 brackets, where spaces are important. This abbreviated notation
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1449 does work if there isn't a space between the number and the i,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1450 I, j, or J.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1451 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1452
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1453 <h2>Summary of changes for version 0.66</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1454
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1455 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1456 * Logical unary not operator (~ or !) now works for complex.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1457
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1458 * Left division works.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1459
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1460 * Right and left element by element division should work correctly
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1461 now.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1462
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1463 * Numbers like .3e+2 are no longer errors.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1464
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1465 * Indexing a matrix with a complex value doesn't cause a core dump.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1466
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1467 * The min and max functions should work correctly for two arguments.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1468
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1469 * Improved (I hope!) configuration checks.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1470
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1471 * Octave is now installed as octave-M.N, where M and N are version
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1472 numbers, and octave is a link to that file. This makes it
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1473 possible to have more than one version of the interpreter installed.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1474 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1475
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1476 <h2>Summary of changes for version 0.63</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1477
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1478 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1479 * The reshape function works again.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1480
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1481 * Octave now converts input like `3.2i' or `3 I' or `2.3e5 j' to be
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1482 complex constants directly, rather than requiring an expression
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1483 like `3.3 * i' to be evaluated.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1484 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1485
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1486 <h2>Summary of changes for version 0.61</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1487
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1488 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1489 * Octave has been successfully compiled using gcc 2.3.3 and libg++ 2.3.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1490 on a 486 system running Linux.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1491
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1492 * The win_texas_lotto function is now called texas_lotto (it's a
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1493 script file, and win_texas_lotto.m is too long for some Linux and
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1494 System V systems).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1495 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1496
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1497 <h2>Summary of changes for version 0.57</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1498
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1499 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1500 * The C-like formatted print functions printf, fprintf, and sprintf
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1501 finally work.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1502 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1503
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1504 <h2>Summary of changes for version 0.56</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1505
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1506 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1507 * By default, octave prints a short disclaimer when it starts.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1508 (You can suppress it by invoking octave with -q).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1509
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1510 * You can keep octave from reading your ~/.octaverc and .octaverc
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1511 files by invoking it with -f.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1512
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1513 * When returning two values, eig now returns [v, d] instead of
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1514 [lambda, v], where d is a diagonal matrix made from lambda.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1515
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1516 * The win_texas_lotto function now produces a sorted list.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1517
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1518 * New functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1519
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1520 expm -- matrix exponential.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1521 logm -- matrix logarithm.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1522 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1523
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1524 <h2>Summary of changes for version 0.55</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1525
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1526 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1527 * The following (C-style) backslash escape sequences work in quoted
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1528 strings (useful(?) with printf()):
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1529
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1530 \a bell \r carriage return
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1531 \b backspace \t horizontal tab
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1532 \f formfeed \v vertical tab
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1533 \n newline \\ backslash
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1534
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1535 * Use of `...' at the end of a line will allow a statement to
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1536 continue over more than one line.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1537
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1538 * The names `inf' and `nan' are now aliases for `Inf' and `NaN',
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1539 respectively.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1540
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1541 * New functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1542
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1543 casesen -- print a warning if the luser tries to turn off case
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1544 sensitivity.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1545 median -- find median value.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1546 norm -- compute the norm of a matrix.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1547 sort -- sort columns.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1548
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1549 * New variable, `silent_functions'. If silent_functions == 'true',
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1550 the results of expressions are not printed even if they are not
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1551 followed by a semicolon. The disp() and printf() functions still
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1552 result in output. The default value for this variable is 'false'.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1553
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1554 * New variable `return_last_value_computed'. If it is 'true',
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1555 functions defined in script files return the last value computed
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1556 if a return value has not been explicitly declared. The default
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1557 value for this variable is 'false'.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1558 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1559
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1560 <h2>Summary of changes for version 0.52</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1561
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1562 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1563 * Name completion works for function and variable names currently in
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1564 the symbol tables. Coming soon: completion for names of functions
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1565 defined in script files but not yet compiled.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1566
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1567 * The initial value of do_fortran_indexing is now false, and the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1568 initial value of prefer_column_vectors is now true. Swap the
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1569 values of these variables if you want behavior that is more like
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1570 Matlab.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1571
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1572 * All script files check the number of input arguments before doing
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1573 much real work.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1574
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1575 * The identifiers `i' and `j' are now also names for sqrt(-1).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1576 These symbols may be used for other purposes, but their original
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1577 definition will reappear if they are cleared.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1578
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1579 * The symbol tables are now implemented with hash tables for faster
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1580 searching.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1581
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1582 * A small amount of help is now available for most built-in
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1583 operators, keywords and functions. Coming soon: help for script
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1584 files.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1585
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1586 * Without any arguments, the help command now lists all known
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1587 built-in operators, keywords and functions.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1588
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1589 * Generic parse errors are now signalled by `Eh, what's up doc?',
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1590 which is closer to what Bugs actually says.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1591
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1592 * The who command now only prints variable names by default.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1593 Use the -fcn (or -fcns, or -functions) switch to print the names of
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1594 built-in or currently compiled functions.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1595 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1596
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1597 <h2>Summary of changes for version 0.51</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1598
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1599 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1600 * Major overhaul of array indexing.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1601
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1602 * The colloc function actually works now.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1603 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1604
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1605 <h2>Summary of changes for version 0.50</h2>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1606
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1607 <pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1608 * The lsode and dassl functions now return the states only,
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1609 instead of the time and the states, so you must keep track of
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1610 the corresponding times (this is easy though, because you have
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1611 to specify a vector of desired output times anyway).
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1612
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1613 * Solution of NLPs with NPSOL now works on the SPARC.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1614
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1615 * New keywords `endif', `endfor', `endfunction', `endif', and
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1616 `endwhile', which allow for better diagnostics. The `end' keyword
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1617 is still recognized. All script files have been changed to use
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1618 these new keywords in place of `end'.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1619
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1620 * It is now possible to uninstall Octave by doing a `make uninstall'
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1621 in the top level directory.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1622
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1623 * The Makefiles are much closer to conforming with GNU coding standards.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1624
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1625 * New functions:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1626
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1627 win_texas_lotto -- produce six unique random numbers between 1 and 50.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1628 quad -- numerical integration.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1629 lu -- LU factorization
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1630 qr -- QR factorization
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1631 dassl -- Solution of DAEs using DASSL.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1632
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1633 * New files:
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1634
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1635 THANKS -- A list of people and organazations who have supported
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1636 the development of Octave.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1637
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1638 NEWS -- This file, listing recent changes.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1639
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1640 * Help is now available at the gnuplot prompt.
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1641 </pre>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1642
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1643 </body>
e8fc61e077fc Merged closed branch "kai" into default. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: diff changeset	1644 </html>

Mercurial > web-octave

annotate NEWS-1.html @ 138:88f15c74aa24