Tue, 19 Nov 2013 10:05:53 +0100 haftmann eliminiated neg_numeral in favour of - (numeral _)
Tue, 19 Nov 2013 01:30:14 +0100 blanchet more tuning for speed
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 tip