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MathGroup Archive 2006

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Re: compute limit

  • To: mathgroup at smc.vnet.net
  • Subject: [mg70588] Re: compute limit
  • From: "Scout" <Scout at nodomain.com>
  • Date: Fri, 20 Oct 2006 05:21:58 -0400 (EDT)
  • References: <eh79cr$dpb$1@smc.vnet.net>

Hi Frank,
in your expression there are symbols not defined.
I'll try to define them in this attempt:

    In[1]:=Assuming[{r>0,0<s<1},
              Limit[((1 + r)^t*(1 - s) + s)^(1/t) - 1, t ->Infinity]]

    Out[1]= r

HTH,
    ~Scout~

"Frank Hechtner" <frank.hechtner at rub.de>
news:eh79cr$dpb$1 at smc.vnet.net...
> Hi,
>
> i?m in trouble with the calculation of limits. my expression is the
> following
>
> ((1 + r)^t*(1 - s) + s)^(1/t) - 1, t -> ?
>
> as you see, the limit is r when x approaches ?.
>
> Unfortunately when using limit the output is
>
> Limit[((1 + r)^t*(1 - s) + s)^(1/t) - 1, t -> ?].
>
> I dont see whats going wrong. Does limit only compute numerical 
> expression?
>
> Thanks for your help
>
> Frank
>


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