Pi Approximation Day occurs every July 22nd. It celebrates pi, a key mathematical constant. Pi relates a circle's circumference to its diameter. William Jones introduced the π symbol in 1706.
Today is Pi Day. You know, March 14. 3/14 is sort of like 3.14. Get it? OK, it's a bit of a stretch because 3/14 looks like a fraction and not Pi. Whatever. We still call it Pi Day. Even if the date ...
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