Graph

less more | at revision 182: (0) -100 -30 -10 -2 +2 +10 +30 tip

Proof 21-23.
Sat, 17 Nov 2012 16:48:55 -0500, by Steve Losh
Proof 19-20.
Fri, 16 Nov 2012 20:17:06 -0500, by Steve Losh

less more | at revision 182: (0) -100 -30 -10 -2 +2 +10 +30 tip