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Old 10-05-2007, 04:04 PM
divides_by_zero divides_by_zero is offline
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Default Re: Karaoke Trip Report! Plus a dilemma...

It's a pretty standard formula. Even referenced by XKCD. It takes into account that the difference between 30 and 40 is way different than 20 and 30 - much better than the rule of 10s.
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