Mercurial > octave-nkf
view scripts/general/issquare.m @ 6650:10da0f6d85c2 ss-2-9-11
[project @ 2007-05-22 06:48:18 by jwe]
author | jwe |
---|---|
date | Tue, 22 May 2007 06:48:18 +0000 |
parents | 34f96dd5441b |
children | 93c65f2a5668 |
line wrap: on
line source
## Copyright (C) 1996, 1997 John W. Eaton ## ## 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 2, 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, write to the Free ## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA ## 02110-1301, USA. ## -*- texinfo -*- ## @deftypefn {Function File} {} issquare (@var{x}) ## If @var{x} is a square matrix, then return the dimension of @var{x}. ## Otherwise, return 0. ## @seealso{size, rows, columns, length, ismatrix, isscalar, isvector} ## @end deftypefn ## Author: A. S. Hodel <scotte@eng.auburn.edu> ## Created: August 1993 ## Adapted-By: jwe function retval = issquare (x) retval = 0; if (nargin == 1) if (ismatrix (x) && ndims (x) < 3) [nr, nc] = size (x); if (nr == nc && nr > 0) retval = nr; endif endif else print_usage (); endif endfunction