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Re: Is this normal for Limit?

• To: mathgroup at smc.vnet.net
• Subject: [mg82284] Re: Is this normal for Limit?
• From: "David Park" <djmpark at comcast.net>
• Date: Wed, 17 Oct 2007 03:52:57 -0400 (EDT)
• References: <ff1par$8nq$1@smc.vnet.net>

Assuming[k > 0, Limit[Exp[-k t], t -> Infinity]]
0

-- 
David Park
djmpark at comcast.net
http://home.comcast.net/~djmpark/


"Michael Mandelberg" <mmandelberg at comcast.net> wrote in message 
news:ff1par$8nq$1 at smc.vnet.net...
>I have what I would think is the following simple limit to evaluate:
>
> $Pre = Refine[#] &;
> $Assumptions = {t \[Element] Reals, k \[Element] Reals,  k > 0};
>
> In[3]:= Limit[Exp[-k t], t -> Infinity]
>
> The results is:
>
> Out[3]= Limit[\[ExponentialE]^(-k t), t -> \[Infinity]]
>
> In other words Mathematica 6.0.0 punts on this.  Is there any sense in
> which this limit is not well-defined?
>
> Michael Mandelberg
>
>