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單詞乎

祖率

拼音：zǔ lǜ

詞典解釋

  1. 祖率 (zǔlǜ)
    1. 南北朝時祖沖之算出圓周率的近似值在3.1415926和3.1415927之間,并指出圓周率的約率為22/7,密率為355/113。為了紀(jì)念祖沖之,把他算出的近似值叫做祖率 the approximate ratio of the circumference of a circle to its diameter as calculated by Zu Chong Zhi
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