读书摘要✂：
「fermatslibrary： An interesting approximation of π that is accurate up to four digits. 🤓 http://bit.ly/2BO28Es 」
「fermatslibrary： An interesting approximation of π that is accurate up to four digits. 🤓 http://bit.ly/2BO28Es 」
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Fermat's Library
An interesting approximation of π that is accurate up to four digits. 🤓