Chongzhi, Zu (429 - 500)

Chongzhi was a Chinese mathematician and astronomer.He made numerous accurate computations including computing pi to six decimal places, a feat not exceeded for a thousand years, he calculated a year to 365.242 days, and a Jupiter year as 11.858 earth years, both very close to the actual figures.

Stamps

Stamp Description
China, 8f, 1955
Scott: 246 A57
Hong Kong, China, 2.90, 2015
Scott:
Guinea, 6500fg, 2009