Copyright (c) 1995, by Christian Perigault
 

 Permission to use, copy, modify, distribute, this drawings and its
 documentation for any purpose is hereby granted without fee, provided that
 the above copyright notice appear in all copies and that both that
 copyright notice and this permission notice appear in supporting
 documentation.
 
 Christian Perigault make no representations about the suitability of 
 this software and drawings for any purpose. It is provided "as is" without 
 express or implied warranty.

 CHRISTIAN PERIGAULT DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
 SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
 IN NO EVENT CHRISTIAN PERIGAULT BE LIABLE FOR ANY SPECIAL,
 INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
 OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 PERFORMANCE OF THIS SOFTWARE.
 
 Author:

               Christian Perigault
               
               e-mail: chsantia@cec.uchile.cl
               
               Mail:  Christian Perigault
                      Dr. Johow 210, Depto. 103
                      Nunoa, Santiago
                      Chile