3.14. Only three significant digits this year. Five if you round 3.14159 to 3.1416
Also celebrating Pi day, Wombat-socho, EBL and The Political Hat. Linked at Pirate's Cove in the weekly "Sorta Blogless Sunday Pinup" and links. Wombat-socho has "Rule 5 Sunday: St. Patrick’s Day Post-Mortem" ready at the Other McCain.