Graph

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Merge.
Sun, 13 Nov 2011 18:01:02 -0500, by Steve Losh
small mistake fix 2*2.0 == 4.0, not 2.0
Sun, 06 Nov 2011 03:40:30 +0100, by Psycojoker
Merge.
Sun, 13 Nov 2011 17:59:27 -0500, by Steve Losh

less more | at revision 50: (0) -30 -10 -3 +3 +10 +30 +100 tip