Re: Floating-Point Computing
- To: mathgroup at smc.vnet.net
- Subject: [mg93933] Re: Floating-Point Computing
- From: Szabolcs <szhorvat at gmail.com>
- Date: Sat, 29 Nov 2008 04:29:09 -0500 (EST)
- References: <ggofnk$rsh$1@smc.vnet.net> <ggon6q$1bt$1@smc.vnet.net>
On Nov 28, 1:12 pm, Jens-Peer Kuska <ku... at informatik.uni-leipzig.de>
wrote:
> Hi,
>
> Sum[Sqrt[n], {n, 1, 1000000000}]
>
> NSum[Sqrt[n], {n, 1, 1000000000}] ??
>
I think the main point of the OP's question was that he wanted to add
the numbers one-by-one and see how the result depended on the
precision instead of using clever methods (that are built into Sum/
NSum) to get a precise result.