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81.23 Machin revisited

Published online by Cambridge University Press:  01 August 2016

Michael Wetherfield
Michael Wetherfield*
Affiliation:
8 Bafford Lane, Charlton Kings, Cheltenham GL53 8DL
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Type
Notes
Information
The Mathematical Gazette , Volume 81 , Issue 490 , March 1997 , pp. 121 - 123
Copyright
Copyright © The Mathematical Association 1997

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References

1. Wetherfield, Michael. The enhancement of Machin’s formula by Todd’s process. Math. Gaz. 80 (July 1996) pp. 333–344.Google Scholar
2. Todd, John, A problem on arc tangent relations, Amer. Math. Monthly 56 (1949) pp. 517–528.Google Scholar