
This code belongs to Kunihiko Sadakane. Gonzalo Navarro (2003) made small
changes in order to adapt it to his testing scenario, but nothing important.

The code can be freely used for teaching and research purposes. Use for any 
other purpose requires written permission of Kunihiko Sadakane.

The code can also be freely distributed, provided this notice is kept attached
in unaltered form.

There is no guarantee that the code is free of bugs or that it fits any 
particular purpose.

Gonzalo Navarro
