Zu Geng or Zu Gengzhi (Chinese: 祖暅之; Wade–Giles: Tsu Keng-chih; ca. 480 – ca. 525) was a Chinese mathematician, politician, and writer. His courtesy name was Jingshuo (景爍). He was the son of the famous mathematician Zu Chongzhi.[1] He is known principally for deriving and proving the formula for the volume of a sphere. He additionally measured the angular distance between Polaris and the celestial north pole.

Zu Gengzhi
Traditional Chinese祖暅之
Simplified Chinese祖暅之
Jingshuo (courtesy name)
Traditional Chinese景爍
Simplified Chinese景烁

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  1. ^ "Zu Gengzhi". Encyclopædia Britannica. Retrieved 2014-09-22.

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