The table below is a brief chronology of computed numerical values of, or bounds on, the mathematical constant π. For more detailed explanations for some of these calculations, see Approximations of π.
Before 1400
1400–1949
1949–2009
2009–present
See also History of pi Approximations of pi
References
External links Borwein, Jonathan, "The Life of Pi Archived 2006-12-07 at the Wayback Machine" Kanada Laboratory home page Stu's Pi page Takahashi's page Google's web service making all 100 trillion digits available