20 Dec
1999
20 Dec
'99
5:15 p.m.
On Mon, 20 Dec 1999, Christian Bauer wrote:
collect((1-t^2)/(1+t),t); (t+1)^(-1)
This is clearly wrong...
The problem is that degree() and ldegree() assume polynomials as input and do not check the result: GiNaCcint> cout << degree((1-pow(ex(t),ex(2)))/(1+t),t) << endl; 1 GiNaCcint> cout << ldegree((1-pow(ex(t),ex(2)))/(1+t),t) << endl; 0 Maple returns FAIL for these expressions. -- Alexander Frink E-Mail: Alexander.Frink@Uni-Mainz.DE Institut fuer Physik Phone: +49-6131-3923391 Johannes-Gutenberg-Universitaet D-55099 Mainz, Germany