Mercurial > octave
view scripts/elfun/cscd.m @ 32063:3b9305e62bb7
avoid LU warnings in sparse tests (bug #64117)
* mk-sparse-tst.sh: Avoid warnings from LU in sparse tests.
author | John W. Eaton <jwe@octave.org> |
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date | Thu, 27 Apr 2023 13:25:01 -0400 |
parents | 597f3ee61a48 |
children | 2e484f9f1f18 |
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######################################################################## ## ## Copyright (C) 2006-2023 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 {} {@var{y} =} cscd (@var{x}) ## Compute the cosecant for each element of @var{x} in degrees. ## @seealso{acscd, csc} ## @end deftypefn function y = cscd (x) if (nargin < 1) print_usage (); endif y = 1 ./ sind (x); endfunction %!assert (cscd (10:10:90), csc (pi*[10:10:90]/180), -10*eps) %!assert (cscd ([0, 180, 360]) == Inf) %!assert (cscd ([90, 270]) != Inf) %!error <Invalid call> cscd ()