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−## Copyright (C) 1996, 1997 John W. Eaton
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−##
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−## This file is part of Octave.
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−##
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−## Octave is free software; you can redistribute it and/or modify it
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−## under the terms of the GNU General Public License as published by
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−## the Free Software Foundation; either version 2, or (at your option)
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−## any later version.
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−##
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−## Octave is distributed in the hope that it will be useful, but
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−## WITHOUT ANY WARRANTY; without even the implied warranty of
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−## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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−## General Public License for more details.
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−##
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−## You should have received a copy of the GNU General Public License
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−## along with Octave; see the file COPYING.  If not, write to the Free
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−## Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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−## 02111-1307, USA.
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−
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−## usage: is_scalar (x)
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−##
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−## Return 1 if the number of rows and columns of x are both equal to 1.
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−##
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−## See also: size, rows, columns, length, is_scalar, is_matrix
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−
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−## Author: jwe
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−
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−function retval = is_scalar (x)
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−
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−  if (nargin == 1)
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−    [nr, nc] = size (x);
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−    retval = (nr == 1 && nc == 1);
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−  else
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−    usage ("is_scalar (x)");
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−  endif
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−
+
−endfunction