Wed, 30 Jun 2010 10:42:38 -0700 huffman change type of 'dimension' to 'a itself => nat
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip