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Re: Limit question

• To: mathgroup at smc.vnet.net
• Subject: [mg31489] Re: Limit question
• From: "Steve Luttrell" <luttrell at signal.qinetiq.com>
• Date: Thu, 8 Nov 2001 04:54:28 -0500 (EST)
• Organization: Defence Evaluation & Research Agency
• References: <9sb2du$p56$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

"Leonard Howell" <lwhowell at knology.net> wrote in message
news:9sb2du$p56$1 at smc.vnet.net...
> I'm trying to evaluate Limit [Exp[x] * (1/x^2), x-> Infinity] with
> Mathematica but can not seem to get the correct answer of Infinity.  Next,
I
> want Limit [Exp[x] /( x!), x-> Infinity] but can't get it either.  Can
> someone please provide guidance?

Exp[x] * (1/x^2) does NOT have a limiting value as x-->Infinity.

On the other hand Exp[x] /( x!) does have a limiting value, which can be
found as follows:

<<NumericalMath`NLimit`

NLimit [Exp[x] /( x!), x -> Infinity]

See the Help Browser for more information.


--
Steve Luttrell
QinetiQ
Malvern Technology Centre
UK