-----Original Message----- From: boost-bounces@lists.boost.org [mailto:boost-bounces@lists.boost.org] On Behalf Of John Maddock Sent: 30 January 2009 11:09 To: boost@lists.boost.org Subject: Re: [boost] Numeric constants
One question I have is the precision needed. My current set are 50 decimal digits, more than enough for any foreseeable floating point hardware. John's current code in the Boost.Math package allows much more, and the constants now defined are to 100 decimal digits. This allows really accurate computation using an arbitrary precision system like Victor Shoup's NTL (GPL License) (or a Boost equivalent if we can produce one - a GSoC project?).
My question is - what precision would be useful?
Not sure, but I guess if we got organised (Ha!), we could generate them programatically using arbitrary precision arithmetic and just tweek the precision as required?
Well I have part of that already to generate the stuff I produced before. But for the Boost release, I would hope we can settle for 50 (or 100) decimal digits. Paul --- Paul A. Bristow Prizet Farmhouse Kendal, UK LA8 8AB +44 1539 561830, mobile +44 7714330204 pbristow@hetp.u-net.com