Mercurial > octave-antonio
view scripts/general/is_square.m @ 245:16a24e76d6e0
[project @ 1993-12-03 02:00:15 by jwe]
author | jwe |
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date | Fri, 03 Dec 1993 02:00:15 +0000 |
parents | 0fda6e1f90e0 |
children | 3470f1e25a79 |
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# Copyright (C) 1993 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, 675 Mass Ave, Cambridge, MA 02139, USA. function retval = is_square (x) # usage: is_square (x) # # If x is square, then return value is the dimension of x. # otherwise, returns a value of 0 # # See also: size, rows, columns, length, is_matrix, is_scalar, is_vector # Written by A. S. Hodel (scotte@eng.auburn.edu) August 1993. if (nargin == 1) [nr, nc] = size (x); if (nr == nc) retval = nr; else retval = 0; endif else error ("usage: is_square (x)"); endif endfunction