Wed, 13 Apr 2016 14:25:02 +0200 wenzelm tuned;
Wed, 13 Apr 2016 11:31:13 +0200 wenzelm clarified syntax;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 tip