## Copyright (C) 1994-2020 The Octave Project Developers
##
## See the file COPYRIGHT.md in the top-level directory of this distribution
## or <https://octave.org/COPYRIGHT.html/>.
##
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## This file is part of Octave.
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## -*- texinfo -*-
## @deftypefn {} {} csc (@var{x})
## Compute the cosecant for each element of @var{x} in radians.
## @seealso{acsc, cscd, csch}
## @end deftypefn

function y = csc (x)

  if (nargin != 1)
    print_usage ();
  endif

  y = 1 ./ sin (x);

endfunction


%!test
%! rt2 = sqrt (2);
%! rt3 = sqrt (3);
%! x = [pi/6, pi/4, pi/3, pi/2, 2*pi/3, 3*pi/4, 5*pi/6];
%! v = [2, rt2, 2*rt3/3, 1, 2*rt3/3, rt2, 2];
%! assert (csc (x), v, sqrt (eps));

%!error csc ()
%!error csc (1, 2)