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 >