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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)
+