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## -*- texinfo -*-
## @deftypefn {} {} cot (@var{x})
## Compute the cotangent for each element of @var{x} in radians.
## @seealso{acot, cotd, coth}
## @end deftypefn

function y = cot (x)

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

  y = 1 ./ tan (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 = [rt3, 1, rt3/3, 0, -rt3/3, -1, -rt3];
%! assert (cot (x), v, sqrt (eps));

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