Thu, 31 May 2007 23:47:36 +0200 wenzelm simplified/unified list fold;
Thu, 31 May 2007 23:02:16 +0200 huffman replace (- 1) with -1
(0) -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip