On 23 Jul 2009, at 11:59, Matthias Görgens wrote:
Round-to-even means x.5 gets rounded to x if x is even and x+1 if x
is
odd. This is sometimes known as banker's rounding.
OK. That's slightly unusual indeed.
It's meant to minimise total rounding error when rounding over large
data sets; there's some discussion on wikipedia: http://en.wikipedia.org/wiki/Rounding
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