Pi Day is here again Once again Pi Day (March 14, or 3/14 in North American notation) is here, when both professional mathematicians and students in school celebrate this most famous of mathematical numbers. Last year was a particularly memorable Pi Day, since 3/14/15 gets two more digits correct, although some would argue that this year's Pi Day is also memorable, since 3/14/16 is pi rounded to four digits after the decimal point (the actual value is 3.14159265358979323846...). Numerous celebrations are scheduled for Pi Day 2016. San Francisco's Exploratorium features several events, culminating with a "Pi Procession" at 1:59pm Pacific Time (corresponding to 3.14159) and pie served at...
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