2011-11-09

1. [memo] “ Plot3D[ 1/8 (6 Exp[-((2/3 Abs[x] - 1)^2 + (2/3 y)^2) - 1/3 (2/3 y + 1/2)^3] + 2/3… http://t.co/RxlrDfvG 09:50 via Google

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