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Re: Expansion of an exponential expression
 To: mathgroup at smc.vnet.net
 Subject: [mg47243] Re: Expansion of an exponential expression
 From: Bill Rowe <readnewsciv at earthlink.net>
 Date: Wed, 31 Mar 2004 02:59:49 0500 (EST)
 Sender: ownerwrimathgroup at wolfram.com
On 3/30/04 at 4:02 AM, carlos at colorado.edu (Carlos Felippa) wrote:
>As a result of some calculations I have (a snipet of a more complex
>expression)
>anlog= Log[ ((2 + Sqrt[1 + 2*h])^(1))^(t/h) ]
>I would like to simplify this to
>anlog= (t/h) Log[((2 + Sqrt[1 + 2*h])^(1)) ]
try PowerExpand as in
In[1]:=
PowerExpand[ Log[((2 + Sqrt[1 + 2*h])^(1))^(t/h)]]
Out[1]=
((t*Log[Sqrt[2*h + 1] + 2])/h)
but you should be aware the transformations made by PowerExpand will not always produce what you expect. For example PowerExpand[(a b)^c] yeilds a^c b^c. If you set a = 4, b = 9 and c = 1/2, then Mathematica gives 6 for (a b)^c and 6 for a^c b^c

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