Mercurial > octave
annotate scripts/elfun/asec.m @ 33624:e0c037a01fde default tip
redirect stdout and stderr into experimental terminal widget
* command-widget.cc (command_widget): open temp files for redirecting
stdout and stderr, setup a file system watcher for signals on changes
to these files;
(~command_widget): close and remove the temp. files;
(insert_interpreter_output): use the style as second argument
(print_stream): add new contents of temp. files for stdout and stderr
to the end of the terminal contents;
(notice_settings): set the terminal preferences to the new lexer of
the console;
(console): create and set new lexer;
(new_command_line): use prompt style for the prompt;
(execute_command): use second command line argument for the style;
(append_string): use style as second argument and style the added
text accordingly;
* command-widget.h (console) append_string with second argument for style,
(command_widget): now with destructor, new method print_stream,
insert_interpreter_output with second argument for style, new class
variables for temp. file descriptors and file system watcher
* console-lexer.cc/h: new lexer derived from QScintillas default lexer
for styling the terminal output, styles used so far: Default, Error,
and Prompt
* gui-preferences-cs.h: new constants for error and prompt colors
* libgui/src/module.mk: new files console_lexer.cc/h
* qt-interpreter-events.cc (display_exception): interpreter_output_signal
with second argument for the style, here Error style
* qt-interpreter-events.h: interpreter_output_signal with second
argument for the style
* terminal-dock-widget.h: interpreter_output_signal with second
argument for the style
author | Torsten Lilge <ttl-octave@mailbox.org> |
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date | Sat, 25 May 2024 14:36:01 +0200 |
parents | 2e484f9f1f18 |
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rev | line source |
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1 ######################################################################## |
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2 ## |
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3 ## Copyright (C) 1994-2024 The Octave Project Developers |
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4 ## |
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5 ## See the file COPYRIGHT.md in the top-level directory of this |
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6 ## distribution or <https://octave.org/copyright/>. |
2313 | 7 ## |
8 ## This file is part of Octave. | |
9 ## | |
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10 ## Octave is free software: you can redistribute it and/or modify it |
2313 | 11 ## under the terms of the GNU General Public License as published by |
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12 ## the Free Software Foundation, either version 3 of the License, or |
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13 ## (at your option) any later version. |
2313 | 14 ## |
15 ## Octave is distributed in the hope that it will be useful, but | |
16 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
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17 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 ## GNU General Public License for more details. |
2313 | 19 ## |
20 ## You should have received a copy of the GNU General Public License | |
7016 | 21 ## along with Octave; see the file COPYING. If not, see |
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22 ## <https://www.gnu.org/licenses/>. |
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23 ## |
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24 ######################################################################## |
2303 | 25 |
3321 | 26 ## -*- texinfo -*- |
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27 ## @deftypefn {} {@var{y} =} asec (@var{x}) |
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28 ## Compute the inverse secant in radians for each element of @var{x}. |
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29 ## @seealso{sec, asecd} |
3321 | 30 ## @end deftypefn |
2311 | 31 |
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32 function y = asec (x) |
2325 | 33 |
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34 if (nargin < 1) |
6046 | 35 print_usage (); |
713 | 36 endif |
37 | |
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38 y = acos (1 ./ x); |
2325 | 39 |
2326 | 40 endfunction |
7385 | 41 |
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42 |
7385 | 43 %!test |
44 %! rt2 = sqrt (2); | |
45 %! rt3 = sqrt (3); | |
46 %! v = [0, pi/6, pi/4, pi/3, 2*pi/3, 3*pi/4, 5*pi/6, pi]; | |
47 %! x = [1, 2*rt3/3, rt2, 2, -2, -rt2, -2*rt3/3, -1]; | |
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48 %! assert (asec (x), v, sqrt (eps)); |
7385 | 49 |
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50 %!error <Invalid call> asec () |