On May 8, 2008, at 11:31 AM, Mark Scoville wrote:
> Or mult by 18, then divide by 256. Will not be any more accurate than
> *9/128, but Divide by 256 is simply dropping the least sig byte.
>>
>> Multiply by 9, then divide by 128?  (close..)

Not close enough.  Fails about 50 times over the range of 1..256, and is
off by more than 1 by starting at 910.

BillW

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