High Quality Content by WIKIPEDIA articles! In mathematics, Machin-like formulas are a class of identities involving = 3.14159... that generalize John Machin's formula from 1706 which he used along with the Taylor series expansion of arctan to compute to 100 decimal places. The 2002 record for digits of , 1,241,100,000,000, was obtained by Yasumasa Kanada of Tokyo University.

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