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From: "John D'Errico" <woodchips@rochester.rr.com>
Newsgroups: comp.soft-sys.matlab
Subject: Re: How to take 200th order derivative, and then evaluate it numerically?
Date: Wed, 18 Mar 2009 17:03:02 +0000 (UTC)
Organization: John D'Errico (1-3LEW5R)
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excellentfeng@gmail.com wrote in message <f6ebcf2b-4782-4984-aebc-7cdb5b28ccee@p2g2000prf.googlegroups.com>...
> Hi all,
> 
> We need to take the 200th order derivative of a complicated formula,
> and then evaluate it numerically.
> 
> What's the best way to handle this?

help rand

Or, perhaps even more accurate is this:

help zeros