## Copyright (C) 2013-2020 The Octave Project Developers
##
## See the file COPYRIGHT.md in the top-level directory of this distribution
## or <https://octave.org/COPYRIGHT.html/>.
##
##
## 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
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## (at your option) any later version.
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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## -*- texinfo -*-
## @deftypefn {} {} atan2d (@var{y}, @var{x})
## Compute atan (@var{y} / @var{x}) in degrees for corresponding elements
## from @var{y} and @var{x}.
## @seealso{tand, atan2}
## @end deftypefn

function retval = atan2d (y, x)

  if (nargin != 2)
    print_usage ();
  endif

  retval = 180 ./ pi .* atan2 (y, x);

endfunction


%!assert (atan2d (-1:.1:1, 1:-.1:-1), 180/pi * atan2 (-1:.1:1, 1:-.1:-1), -10*eps)

%!error atan2d ()
%!error atan2d (1)