Kate Bush sang over 100 digits about this symbol, the ratio of the circumference of a circle to its diameter
... Machin defines pi series, and Jones gives it a 
symbol ... Machin used his formula to derive pi's first 100 digits, which set a new 
.... Geek chanteuse Kate Bush sang pi's digits in Pi (2005), which is... [DOC] [TLE] PI - Math.com [PAR] Pi is a name given to the ratio of the circumference of a circle to the diameter.