[Haskell-cafe] Why 'round' does not just round numbers ?

Janis Voigtlaender voigt at tcs.inf.tu-dresden.de
Mon Oct 27 09:43:10 EDT 2008

Lennart Augustsson wrote:
> I can't remember the method being called anything.
> It was just what we were being taught.  With the obvious explanation
> that .5 is right in the middle so always going one way would introduce
> a bias.  This was circa 1969.

Well, I wasn't serious about the "political" explanation.

And yes, the "avoiding bias" explanation makes sense, but not the "this
way of rounding makes repeated rounding safe" explanation.

Dr. Janis Voigtlaender
mailto:voigt at tcs.inf.tu-dresden.de

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