Thursday, March 30, 2017

[nrdhigmh] Gauss's Machin-like formula

Is Gauss's Machin-like formula for pi,

pi/4=12cot^(-1)18+8cot^(-1)57-5cot^(-1)239

the most efficient 3-term Machin-like formula?  Machin's 2-term formula is the most efficient 2-term formula.

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