Today is Pi Day — the day each year, March 14, that follows the first three digits of pi (3.14). And this year’s Pi Day is a special one: Since — in the U.S. — the date is represented as 3/14/15, we ...
March 14 is a sacred day among math fans: It's Pi Day, so named because the date is the same as the first three digits of the famous constant of pi — 3.14 — which measures the ratio of a circle's ...