Zu Gengzhi

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, which was greater 1600 years ago than it is today.

Zu Gengzhi
Traditional Chinese	祖暅之
Simplified Chinese	祖暅之
Transcriptions Standard Mandarin Hanyu Pinyin Zǔ Gèngzhī Wade–Giles Tsu Keng-chih
Jingshuo (courtesy name)
Traditional Chinese	景爍
Simplified Chinese	景烁
Transcriptions Standard Mandarin Hanyu Pinyin Jǐngshuò

In this Chinese name, the family name is Zu.

See also

• List of Chinese mathematicians