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Re: Expansion of an exponential expression


"Carlos Felippa" <carlos at colorado.edu> schrieb im Newsbeitrag
news:c4bdrj$6uu$1 at smc.vnet.net...
> 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))   ]
>
> so I can then take the Taylor series in h.
> But FullSimplify[anlog,h>0]  doesnt do it.
> Do i need a ComplexityFunction?
>

In[4]:= FullSimplify[anlog, h > 0 && t \[Element] Reals]
Out[4]= -((t*Log[2 + Sqrt[1 + 2*h]])/h)

You can enter <esc>elem<esc> for \[Element]
-- 
Peter Pein, Berlin
StringReplace["petsie at arcand.de",
 Rule@@(ToLowerCase@ToString@Head@#&)/@{William&&S,2b||!2b}]



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