Diff of Bailey-Borwein-Plouffe

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• Go to Bailey-Borwein-Plouffe.

[[PI]]
π([[PI]])


- https://en.wikipedia.org/wiki/Bailey%E2%80%93Borwein%E2%80%93Plouffe_formula

- BBP系公式
--  http://xn--w6q13e505b.jp/formula/bbp.html

- BBPアルゴリズム
--  http://www.kk62526.server-shared.com/pi/BBP.html