Re: Limit Question

• To: mathgroup at smc.vnet.net
• Subject: [mg66464] Re: [mg66452] Limit Question
• From: gardyloo <gardyloo at mail.wsu.edu>
• Date: Sun, 14 May 2006 02:57:55 -0400 (EDT)
• References: <200605130642.CAA08939@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```I've never really liked Mathematica's handling of which functions may be
passed assumptions, or may be used (effectively) in Assuming...

Assuming[a > 0, Limit[Exp[(-a)*t], t -> Infinity]]

0

Similarly,

Assuming[a < 0, Limit[Exp[(a)*t], t -> Infinity]]

0

I can't really answer the question, but I can offer those alternatives
to get the assumed limit.

Cheers,
C.O.

Blimbaum, Jerry CIV NSWC PC wrote:
> Why do these give no output?
>
> Simplify[Limit[Exp[-a t],t->Infinity],a>0]
>
> and  same for
>
> Simplify[Limit[Exp[a t],t->Infinity],a<0]
>
> thanks...
>
> Jerry Blimbaum
>
>
>
>
>

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```

• References:
• Limit Question
• From: "Blimbaum, Jerry CIV NSWC PC" <jerry.blimbaum@navy.mil>
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