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Liu Hui – 3.14 is Pi Day, of course!

Liu Hui was the first Chinese mathematician to provide a rigorous algorithm for calculation of π to any accuracy. Liu Hui’s own calculation with a 96-gon provided an accuracy of five digits: π ≈ 3.1416.

Liu Hui’s π algorithm was invented by Liu Hui (fl. 3rd century), a mathematician of Wei Kingdom.

liu hui pi

今天 是 圆周率日! Today is Pi Day! Happy Pi Day everyone!

Character breakdown:

Pi = 圆周率  (Yuánzhōulǜ)

Day= 日 (rì)

Pi day= 圆周率日  (Yuánzhōulǜ rì)

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NinchaneseLiu Hui – 3.14 is Pi Day, of course!