Graph

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More ideas in the outline.
Wed, 04 Apr 2012 13:45:32 -0400, by Steve Losh
Tweak a few suggested options.
Wed, 04 Apr 2012 13:45:24 -0400, by Steve Losh

less more | at revision 77: (0) -30 -10 -2 +2 +10 +30 +100 tip