MathGroup Archive 1992

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Re: Limit of Bessel functions

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  • Subject: Re: Limit of Bessel functions
  • From: David Withoff <withoff>
  • Date: Mon, 27 Jan 1992 21:19:42 -0600

The built-in Limit function only knows about elementary functions
and things for which it can construct power series expansions (no
essential singularities, etc.).  The Calculus`Limit` package knows
about a far broader class of functions and uses a more powerful

In[1]:= << Calculus`Limit`

In[2]:= Limit[BesselI[I + eps, 1],eps->0]      

Out[2]= BesselI[I, 1]

It is likely that some version of the algorithm used in this package
will eventually be used to extend or replace the built-in code.

 David Withoff <withoff at>

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