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"troels knak-nielsen" <> writes:

> On Wed, Apr 23, 2008 at 2:36 PM, Bogdan Marinescu
> <> wrote:
>> "is there any particularly strong reason why lua needs one?".
>> Maybe because just about any decent math library out there has one ? Think I
>> ran in this problem myself a while ago.
> If I'm not mistaken, there are several competing ways of rounding a
> perfect half.

Sure.  But the optimal round-to-even strategy is non-trivial to
implement in a system-independent manner and/or in a high level
language.  But it is part of IEEE standards.  So it is rather cheap to
provide low-level, usually.

David Kastrup