Mon, 13 Jan 1997 18:24:40 +0100 wenzelm improved error msg;
Mon, 13 Jan 1997 18:20:35 +0100 wenzelm added datatype order;
Mon, 13 Jan 1997 13:20:32 +0100 wenzelm added -? option;
(0) -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip