Mercurial > octave-nkf
view scripts/elfun/cscd.m @ 6239:82185e38eea8
[project @ 2007-01-10 22:53:58 by jwe]
author | jwe |
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date | Wed, 10 Jan 2007 22:53:59 +0000 |
parents | |
children | 98ee80702bca |
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## Copyright (C) 2006 David Bateman <dbateman@free.fr> ## ## This program 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 2 of the License, or ## (at your option) any later version. ## ## This program 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 this program; if not, write to the Free Software ## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ## -*- texinfo -*- ## @deftypefn {Function File} {} cscd (@var{x}) ## Compute the cosecant of an angle in degrees. ## @seealso{csc, secd, sind, cosd} ## @end deftypefn function y = cscd (x) if (nargin != 1) print_usage (); endif y = 1 ./ sind (x); endfunction %!error(cscd()) %!error(cscd(1,2)) %!assert(cscd(10:10:90),csc(pi*[10:10:90]/180),-10*eps) %!assert(cscd([0,180,360]) == Inf) %!assert(cscd([90,270]) != Inf)