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  1. p (0..9**6).map{|e|(-1.0)**e/(2*e+1)*4}.reduce :+
Success #stdin #stdout 0.73s 9720KB
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3.141590771916799
https://ideone.com/eiqini
language:
Ruby (ruby 2.5.5)
created:
10 years ago
visibility:
secret

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