Mercurial > octave-nkf
view scripts/specfun/pow2.m @ 19903:781adfc2958c draft nkf
Build qt graphics toolkit menus with uimenu
* libgui/graphics/Figure.cc, libgui/graphics/Figure.h: Revert cset 7335cc071ab0
and remove all menu items.
* scripts/gui/private/__get_funcname__.m: Fix typo
* scripts/plot/util/private/__add_default_menu__.m: Enable uimenu for qt
graphics toolkit and fix setting pan/rotate/zoom for qt and fltk
author | Stefan Mahr <dac922@gmx.de> |
---|---|
date | Fri, 27 Feb 2015 18:36:05 +0100 |
parents | 4197fc428c7d |
children |
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## Copyright (C) 1995-2015 Kurt Hornik ## ## This file is part of Octave. ## ## Octave is free software; you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 3 of the License, or (at ## your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ## General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {Function File} {} pow2 (@var{x}) ## @deftypefnx {Function File} {} pow2 (@var{f}, @var{e}) ## With one input argument, compute ## @tex ## $2^x$ ## @end tex ## @ifnottex ## 2 .^ x ## @end ifnottex ## for each element of @var{x}. ## ## With two input arguments, return ## @tex ## $f \cdot 2^e$. ## @end tex ## @ifnottex ## f .* (2 .^ e). ## @end ifnottex ## @seealso{log2, nextpow2, power} ## @end deftypefn ## Author: AW <Andreas.Weingessel@ci.tuwien.ac.at> ## Created: 17 October 1994 ## Adapted-By: jwe function y = pow2 (f, e) if (nargin == 1) y = 2 .^ f; elseif (nargin == 2) y = f .* (2 .^ e); else print_usage (); endif endfunction %!test %! x = [3, 0, -3]; %! v = [8, 1, .125]; %! assert (pow2 (x), v, sqrt (eps)); %!test %! x = [3, 0, -3, 4, 0, -4, 5, 0, -5]; %! y = [-2, -2, -2, 1, 1, 1, 3, 3, 3]; %! z = x .* (2 .^ y); %! assert (pow2 (x,y), z, sqrt (eps)); %!error pow2 () %!error pow2 (1,2,3)