Re: extracting fractional powers of series expansion?
- To: mathgroup at smc.vnet.net
- Subject: [mg78237] Re: extracting fractional powers of series expansion?
- From: dh <dh at metrohm.ch>
- Date: Wed, 27 Jun 2007 05:12:18 -0400 (EDT)
- References: <f5qji2$5ut$1@smc.vnet.net>
Hi Tamin,
For an expansion around Infinity, SeriesCoefficient wants the exponent
of 1/x, e.g.:
s=Series[1/Sqrt[x + 1]
SeriesCoefficient[s,{x,Infinity,5}],3/2] gives the coefficient of the
second term.
hope this helps, Daniel
Tanim Islam wrote:
> Hi:
>
> How do I extract a given fractional power term in a series expansion? For
> instance, I do a series expansion of a function about infinity. How do I
> extract the -1/2 power term with, say, SeriesCoefficient. I am using
> Mathematica 6.
>
> Tanim Islam
>