# The Quest for Pi

Bailey, David H. and Borwein, Jonathan M. and Borwein, Peter and Plouffe, Simon (1997) The Quest for Pi. The Mathematical Intelligencer, 19 (1). pp. 50-57.

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Postscript
This article gives a brief history of the analysis and computation of the mathematical constant $\pi = 3.14159 \ldots$, including a number of the formulas that have been used to compute $\pi$ through the ages. Recent developments in this area are then discussed in some detail, including the recent computation of $\pi$ to over six billion decimal digits using high-order convergent algorithms, and a newly discovered scheme that permits arbitrary individual hexadecimal digits of $\pi$ to be computed.