the second suggestion in the letter I just sent, changing the List function to
get the coefficients list of a polynomial, doesn't seem to work as nicely as I
intended, since when defining a polynomial, there seems to be a degree shift to
make the list smaller. There is certainly a workaround for that problem, but
that would be too non-canonical then (since also negative powers are allowed),
so maybe you don't want to change the List function at all.
So maybe just forget my second suggestion, but check out the first...
_______________________________________________________________________________ richard rossmanith http://www.minet.uni-jena.de/~richard/