Henning Thielemann wrote:
I think one reason is that repeated rounding should not be worse than
rounding in one go. Consider the rule 'use ceiling when the first
removed digit is 5'. Then
0.45 - (round to one place) -> 0.5 - (round to integer) -> 1
But repeated rounding *is* worse than rounding in one go, under any
reasonable scheme:
3.46 -> 3.5 -> 4
vs.
3.46 -> 3
That was actually the debate with that teacher. Unbelievable as that
still is to me today, she advocated the 3.46 -> 3.5 -> 4 route...
And yes, Henning, you are right, we didn't yet share school in fourth
grade when rounding was taught.
Ciao, Janis.
--
Dr. Janis Voigtlaender
http://wwwtcs.inf.tu-dresden.de/~voigt/
mailto:[EMAIL PROTECTED]
_______________________________________________
Haskell-Cafe mailing list
Haskell-Cafe@haskell.org
http://www.haskell.org/mailman/listinfo/haskell-cafe
