# The Discovery of the Series Formula for $$\pi$$

Award: Carl B. Allendoerfer

Year of Award: 1991

Publication Information: Mathematics Magazine, Vol. 63 (1990), pp. 291-306

Summary: The history of the representation of $$\pi/4$$ as the sum of the series 1 - 1/3 + 1/5 + ...

About the Author: (from Mathematics Magazine, Vol. 63 (1990)) Ranjan Roy is professor of mathematics at Beloit College. He received his Ph.D. from SUNY at Stony Brook under Irwin Kra in 1973. His mathematical interests lie in differential equations, complex analysis, special functions, and the history of mathematics. His hobbies include handball and soccer.

Author (old format):
Ranjan Roy
Author(s):
Ranjan Roy
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Publication Date:
Friday, February 2, 2007
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Summary:

The history of the representation of $$\pi/4$$ as the sum of the series 1 - 1/3 + 1/5 - ...