Re: Re: Bug with Hypergeometric2F1?

*To*: mathgroup at smc.vnet.net*Subject*: [mg99444] Re: [mg99422] Re: [mg99384] Bug with Hypergeometric2F1?*From*: Andrzej Kozlowski <akoz at mimuw.edu.pl>*Date*: Wed, 6 May 2009 05:20:46 -0400 (EDT)*References*: <200905050943.FAA20864@smc.vnet.net>

On 5 May 2009, at 18:43, Bob Hanlon wrote: > Or change the function definition to force precision > > vol1[n_, k_] := Sum[Binomial[Rationalize[n, 0], i], > {i, 0, Rationalize[k, 0]}] > > vol1 @@@ {{1000, 1}, {1000, 1.}, {1000., 1}, {1000., 1.}} > > {1001,1001,1001,1001} > > > Bob Hanlon Actually, in this case (when you use SetDelayed instead of Set as in the original post) Rationalize is not needed: vol1[n_, k_] := Sum[Binomial[n, i], {i, 0, k}] vol1 @@@ {{1000, 1}, {1000, 1.}, {1000., 1}, {1000., 1.}} {1001, 1001, 1001., 1001.} Andrzej Kozlowski

**References**:**Re: Bug with Hypergeometric2F1?***From:*Bob Hanlon <hanlonr@cox.net>