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I cleaned up the formula presentation, but I can't figure out where the formula came from. Citation? — Preceding unsigned comment added by 24.52.246.245 (talk) 16:11, 6 December 2013 (UTC)[reply]

It's been almost 5 years, but I've added the citation here. - NingOTI (talk) 17:55, 6 February 2018 (UTC)[reply]

I get the sense that this section is slightly repetitive as it mentions multiple times how people should interpret the values and adjust their behaviour accordingly. I also made some grammatical fixes in the History section Jdk2018 (talk) 03:14, 27 January 2019 (UTC)[reply]

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