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On 01/15/2012 04:21 PM, Jack Coats wrote: > I think we all agree, for finances we want integer math, no matter how > we implement it. That is counting pennies or mills at the unit of > measure. > > Floating point and binary conversions with their apparent > inconsistencies are beyond what we are wanting to live with (like > rounding errors, etc). > > There is no one truth that is correct for all, even when counting money. > > Try going into your bank, and ask for the formula they use for > calculating interest on a savings account. The normal answer I have > gotten is "The Computer Does It", and no one at the bank knows. > > After working for a bank for several years, they don't even know. > They purchase a bank bean counting package from the vendor and > "assume" it is right. You may be right, When I was a banker we had a formula for loans. But, calculations have to take into account a lot of things. I don't want to beat the dog to death, but in some cases they use a 360 day year for calculations. On our package at work, when doing curves and simulaitons we select the basis which may be different in the US and the UK. -- Jerry Feldman <gaf at blu.org> Boston Linux and Unix PGP key id:3BC1EB90 PGP Key fingerprint: 49E2 C52A FC5A A31F 8D66 C0AF 7CEA 30FC 3BC1 EB90
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