Eliezer_Yudkowsky comments on Welcome to Less Wrong! (2010-2011) - Less Wrong

42 Post author: orthonormal 12 August 2010 01:08AM

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Comment author: Eliezer_Yudkowsky 17 December 2010 09:10:23PM *  3 points [-]

e^-x is its own second derivative. sin(x) is its own fourth derivative (note relation to e^ix).

And welcome to LW! (he said)