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frobozz
on Oct 1, 2012
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All Rational Approximations of Pi Are Useless
It is easier to mentally calculate the approximate circumference of a circle whose radius is a multiple of 7 using 22/7, than it is using 3.14(...)
Admittedly, that's a pretty niche use, but a use, nonetheless.
JumpCrisscross
on Oct 1, 2012
[–]
3 X 7 = 21 and 7 X .14 is 7 X 10 X 1.5 - .07 with the appropriate decimal shift. Now I know it's something approaching 22, a detail 22/7 denies.
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Admittedly, that's a pretty niche use, but a use, nonetheless.