Mercurial > octave
view scripts/signal/sinc.m @ 31060:7201d9b7cea6 stable
NEWS.7.md: Fix typo and formatting.
author | Markus Mützel <markus.muetzel@gmx.de> |
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date | Thu, 02 Jun 2022 19:52:08 +0200 |
parents | 796f54d4ddbf |
children | 5d3faba0342e |
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######################################################################## ## ## Copyright (C) 1994-2022 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## 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 ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {} 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 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) ## Test input validation %!error <Invalid call> sinc ()