swap.m

similer program for matlab

## Copyright (C) 1996, 2000, 2005, 2007
##               Auburn University.  All rights reserved.
##
## 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.
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
## General Public License for more details.
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## along with Octave; see the file COPYING.  If not, see
## <http://www.gnu.org/licenses/>.

## -*- texinfo -*-
## @deftypefn {Function File} {} swap (@var{inputs})
## @format
## [a1,b1] = swap(a,b)
## interchange a and b
## @end format
## @end deftypefn

## Author: A. S. Hodel <[e-mail]>
## Created: July 24, 1992
## Conversion to Octave R. Bruce Tenison July 4, 1994

function [a1, b1] = swap (a, b)

  if (nargin != 2)
    print_usage ();
  endif

  a1 = b;
  b1 = a;

endfunction