Submit Hint Search The Forums LinksStatsPollsHeadlinesRSS
14,000 hints and counting!

Click here to return to the 'Regarding Calculator and low precision values' hint
The following comments are owned by whoever posted them. This site is not responsible for what they say.
Regarding Calculator and low precision values
Authored by: jsuen on Dec 12, '05 09:59:36AM

Whether a number is odd or even is usually not as important as the magnitude of the error. For example, 5.5+3.5+2.5=11. If we round 5 up, we get 6+4+3=13. If we round to even, we get 6+4+2=12. The effect only appears on longer chains of numbers, where the bias of 5 adds up.

Round to even is done on any modern processor. The IRS doesn't care whether your income is odd or even, but they do care if you're $1,000 off.

[ Reply to This | # ]