Re: HypergeometricPFQ Question

*To*: mathgroup at smc.vnet.net*Subject*: [mg19009] Re: HypergeometricPFQ Question*From*: Alan Lewis <alanlewis at home.com>*Date*: Tue, 3 Aug 1999 13:44:46 -0400*Organization*: @Home Network*References*: <7nrfmr$if8@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Think Taylor series, which is what you are asking for: it's the derivative of the function with respect to the last argument. This is poor notation on Mathematica's part, I think, since it's trying to say "0th" derivative with respect to the first two arguments, with the 2nd argument a 2-element list. Evaluate D[f[{a},{b,c},d],d] for better notation. "Moon J. Lee" wrote: > > ------------------------------------------------------------------ > In[3]:= Series[ HypergeometricPFQ[{1/2},{3/2,2},-t^2] , {t,0,2} ] > > gives > (0,0,1) 1 3 2 3 > Out[4]= 1 - HypergeometricPFQ [{-}, {-, 2}, 0] t + O[t] > 2 2 > ------------------------------------------------------------------ > > What does (0,0,1) mean? > The Mathematica Book does not have any explanation. > Thanks. > > mjlee at postech.ac.kr