?!? That was one of the first things I tried! OK, reality rot marches on. Tnx, --rwg On Fri, May 17, 2013 at 6:57 PM, Erich Friedman <efriedma@stetson.edu> wrote:
i can't seem to reply to math-fun (why not?) but i think what you want is:
Plot[Evaluate[D[-E^-t^2, {t, 3}]], {t, -3, 3}]
erich
Minus the 3rd derivative of a bell curve: In[234]:= D[-E^-t^2, {t, 3}]
Out[234]= -12 E^-t^2 t + 8 E^-t^2 t^3
In[235]:= Plot[%, {t, -3, 3}]
looks remarkably like the water depth variation along the Tohoku coast during the 11-3-11 tsunami: Drawback, huge flood, huge backwash+drawback, lesser flood. Coincidence? I can supply YouTube URLs. --rwg Challenge: Combine %234 and %235 into a single "command". Macsyma has a similar problem.
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