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These nodes all have stuff by karthik84 (showing 1-3 out of ~3?):

Node ID Writeup Created
696581 Re^2: GD graph use different colors for data points 2008-07-09 22:47
696567 Re^2: GD graph use different colors for data points 2008-07-09 21:24
696541 GD graph use different colors for data points 2008-07-09 19:48