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1 янв 470 г. - C: Tsu Ch'ung-chi's approx for pi

Описание:

China: Tsu Ch’ung-chi’s approximation for pi as between 3.1415926 and 3.1415927, a record not surpassed for 800 years.

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History of Mathematics 2019

16 июл 2019

2

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1313

Дата:

1 янв 470 г.

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~ 1556 г назад

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