Mercurial > octave-nkf
view scripts/signal/sinc.m @ 20645:395140e53656
Fix regression in svg output and simplify viewport handling (bug #44765)
* gl2ps-renderer.cc (glps-renderer::draw): remove check for GL2PS_NO_FEEDBACK, it it always true after EndViewport
* gl2ps-renderer.h (glps-renderer::draw_axes): call gl2psBegin(End)Viewport for every axes and check for GL2PS_NO_FEEDBACK after each axes.
* gl2ps-renderer.h (glps-renderer::draw_axes):remove unnecessary "naxes" attribute
author | Pantxo Diribarne <pantxo.diribarne@gmail.com> |
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date | Mon, 12 Oct 2015 20:49:04 +0200 |
parents | b0f7ee81d974 |
children |
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## Copyright (C) 1994-2015 John W. Eaton ## ## 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} {} sinc (@var{x}) ## Compute the sinc function. ## ## Return ## @tex ## $ \sin (\pi x)/(\pi x)$. ## @end tex ## @ifnottex ## sin (pi*x) / (pi*x). ## @end ifnottex ## @end deftypefn ## Author: jwe ??? function result = sinc (x) if (nargin != 1) print_usage (); endif result = ones (size (x)); i = (x != 0); if (any (i(:))) t = pi * x(i); result(i) = sin (t) ./ t; endif endfunction %!assert (sinc (0), 1) %!assert (sinc (1), 0,1e-6) %!assert (sinc (1/2), 2/pi, 1e-6) %!error sinc()