view scripts/elfun/atand.m @ 30560:9ed1cf9e446e

doc: Document output for all functions in elfun/ directory (bug #61681) * acosd.m, acot.m, acotd.m, acoth.m, acsc.m, acscd.m, acsch.m, asec.m, asecd.m, asech.m, asind.m, atan2d.m, atand.m, cosd.m, cot.m, cotd.m, coth.m, csc.m, cscd.m, csch.m, sec.m, secd.m, sech.m, sind.m, tand.m: Document output for all functions in elfun/ directory (bug #61681)
author Rik <rik@octave.org>
date Mon, 27 Dec 2021 20:04:52 -0800
parents 7854d5752dd2
children 83f9f8bda883
line wrap: on
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########################################################################
##
## Copyright (C) 2006-2021 The Octave Project Developers
##
## See the file COPYRIGHT.md in the top-level directory of this
## distribution or <https://octave.org/copyright/>.
##
## 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
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## Octave 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 Octave; see the file COPYING.  If not, see
## <https://www.gnu.org/licenses/>.
##
########################################################################

## -*- texinfo -*-
## @deftypefn {} {@var{y} =} atand (@var{x})
## Compute the inverse tangent in degrees for each element of @var{x}.
## @seealso{tand, atan}
## @end deftypefn

function y = atand (x)

  if (nargin < 1)
    print_usage ();
  endif

  y = 180 ./ pi .* atan (x);

endfunction


%!assert (atand (0:10:90), 180/pi * atan (0:10:90), -10*eps)

%!error <Invalid call> atand ()