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## Copyright (C) 2010-2014 Lukas F. Reichlin
##
## This program 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.
##
## This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {@var{nvec} =} size (@var{q})
## @deftypefnx {Function File} {@var{n} =} size (@var{q}, @var{dim})
## @deftypefnx {Function File} {[@var{nx}, @var{ny}, @dots{}] =} size (@var{q})
## Return size of quaternion arrays.
##
## @strong{Inputs}
## @table @var
## @item q
## Quaternion object.
## @item dim
## If given a second argument, @command{size} will return the size of the
## corresponding dimension.
## @end table
##
## @strong{Outputs}
## @table @var
## @item nvec
## Row vector. The first element is the number of rows and the second
## element the number of columns. If @var{q} is an n-dimensional array
## of quaternions, the n-th element of @var{nvec} corresponds to the
## size of the n-th dimension of @var{q}.
## @item n
## Scalar value. The size of the dimension @var{dim}.
## @item nx
## Number of rows.
## @item ny
## Number of columns.
## @item @dots{}
## Sizes of the 3rd to n-th dimensions.
## @end table
## @end deftypefn
## Author: Lukas Reichlin <lukas.reichlin@gmail.com>
## Created: May 2010
## Version: 0.2
function varargout = size (a, b)
switch (nargout)
case {0, 1}
switch (nargin)
case 1 # nvec = size (q)
varargout{1} = size (a.w);
case 2 # n = size (q, dim)
varargout{1} = size (a.w, b);
otherwise
print_usage ();
endswitch
otherwise
if (nargin == 1) # [nx, ny, ...] = size (q)
varargout = num2cell (size (a.w));
else
print_usage ();
endif
endswitch
endfunction

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