[Python-Dev] Re: Decimal type question [Prothon]
Andrew P. Lentvorski, Jr.
bsder at mail.allcaps.org
Mon Aug 9 21:49:12 CEST 2004
On Aug 9, 2004, at 10:29 AM, Mark Hahn wrote:
> 3) A binary Float implemented with the hardware floating point with the
> constant/__str__ form of +-NN.NN+-eNN such as 0e0, -123e0, 173.39e+3,
> 2.35e-78, etc.
Be careful defining string representations of numbers. It is a
non-trivial
problem to adhere to the correct internationalization standards.
> There would be no automatic conversion except the / operator would
> convert
> from Int to Decimal
Int goes to the default type of float (which is currently binary FP)
already
upon using the / operator.
> and the Math module would convert Int and Decimal
> values to Float for almost all functions (except simple ones like abs,
> min,
> max).
This is not necessarily a good idea. Exponentials are very useful in
financial situations and want to be decimals, not binary floats, in
those
cases.
-a
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