Tue, 26 Nov 1996 14:28:17 +0100 nipkow A bit of commutative ing theory, with a simplification tacxtic and an example.
Tue, 26 Nov 1996 14:26:38 +0100 nipkow Added Lagrang. Modified comment.
(0) -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip