Pi Day is celebrated on March 14 (3.14).
What’s Pi Approximation Day — and when?

Q: Pi Day is celebrated on March 14 (3.14). What’s Pi Approximation Day — and when?

July 22nd — written as 22/7, which approximates π.. European date format works for the approximation. Mathematicians are the only community with two annual festivals for the same irrational number.

Question

Accepted Answer

July 22nd — written as 22/7, which approximates π. — European date format works for the approximation. Mathematicians are the only community with two annual festivals for the same irrational number.