Problem with floating point precision
Tim Peters
tim.peters at gmail.com
Tue Aug 17 23:45:23 EDT 2004
[John Roth]
> ...
> There's a floating decimal package in 2.4 that is intended
> to eventually (in 2.5 maybe?) be the base of a currency
> package. However, that doesn't help today.
It will help in 2.4, though. Fixed-point decimal is a subset of what
2.4's decimal arithmetic can do, and it's dead easy to do exact
"dollars and cents" calculations using it. I'm not sure what a
currency package would add on top of it -- maybe add currency markers
to string output, perhaps offer a simplified rounding discipline for
multiplication, not really sure. The "hard parts" will already be in
2.4.
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