Thu, 16 Nov 1995 19:50:40 +0100 added rev_contrapos
nipkow [Thu, 16 Nov 1995 19:50:40 +0100] rev 1334
added rev_contrapos
(0) -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip