License

This software 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 of the License, or (at your option) any later version. This code 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. A copy of the GNU General Public License is available on the World Wide Web at http://www.gnu.org/copyleft/gpl.html.
New feature will be added on request if its implementation is easy. If you find a bug , please report it to fujimaki@alrc.tottori-u.ac.jp.