Mercurial > octave
view scripts/elfun/cotd.m @ 29358:0a5b15007766 stable
update Octave Project Developers copyright for the new year
In files that have the "Octave Project Developers" copyright notice,
update for 2021.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Wed, 10 Feb 2021 09:52:15 -0500 |
parents | a4268efb7334 |
children | 7854d5752dd2 |
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######################################################################## ## ## Copyright (C) 2006-2021 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 {} {} cotd (@var{x}) ## Compute the cotangent for each element of @var{x} in degrees. ## @seealso{acotd, cot} ## @end deftypefn function y = cotd (x) if (nargin != 1) print_usage (); endif y = 1 ./ tand (x); endfunction %!assert (cotd (10:10:80), cot (pi*[10:10:80]/180), -10*eps) %!assert (cotd ([0, 180, 360]) == Inf) %!assert (cotd ([90, 270]) == 0) %!error cotd () %!error cotd (1, 2)