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Re: Models, etc.




On Sun, 2 Nov 1997 19:36:16 -0500 Hugh Haskell <hhaskell@mindspring.com>
writes:


Is my mathematical recollection incorrect, or it it true that when the
nth
derivative of a function is zero for all values of the independent
variable, that the derivative process stops? In other words, doesn't a
quadratic function have only two derivatives, and not "derivative of
all
orders"?


No, it has derivatives of all orders. In short, it is analytic. All
polynomials are. Regards / Tom