view scripts/elfun/asind.m @ 9155:ad20b967e1c9

Update section 17.3 (Trigonometry) of arith.txi Add text to help strings to indicate which functions use radians and which use degrees. Add cross-references to radian function descriptions.
author Rik <rdrider0-list@yahoo.com>
date Sun, 26 Apr 2009 22:19:57 -0700
parents a1dbe9d80eee
children 16f53d29049f
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## Copyright (C) 2006, 2007 David Bateman
##
## 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
## <http://www.gnu.org/licenses/>.

## -*- texinfo -*-
## @deftypefn {Function File} {} asind (@var{x})
## Compute the inverse sine in degrees for each element of @var{x}.
## @seealso{sind, asin}
## @end deftypefn

## Author: David Bateman <dbateman@free.fr>

function y = asind (x)
  if (nargin != 1)
    print_usage ();
  endif
  y = asin(x) .* 180 ./ pi;
endfunction

%!error(asind())
%!error(asind(1,2))
%!assert(asind(0:0.1:1),180/pi*asin(0:0.1:1),-10*eps)