PI A Biography of the World's Most Mysterious Number

n this delightful layperson's introduction to one of math's most interesting phenomena, Drs Posamentier and Lehmann review p's history from pre-biblical times to the 21st century, the many amusing and mind-boggling ways of estimating p over the centuries, quirky examples of obsessing about p (including an attempt to legislate its exact value), and useful applications of p in everyday life, including statistics.