Pi Day: Circle Your Calendar — Once-in-a-Century Day Coming This Weekend
Circle around, math fans. There's a once-in-a-century Pi Day coming this weekend. The day that celebrates the mathematical constant pi is Saturday. And because it's 2015, this particular sequence of numbers in the calendar that matches pi — 3/14/15 — won't …
Pi Day a once-in-a-century celebration for many in N.J.