What is Zu Chongzhi?
'''Zu Chongzhi''', ({{zh|c=祖沖之}}; 429–500 AD), [[courtesy name]] '''Wenyuan''' ({{zh|c=文遠}}), was a Chinese [[astronomer]], [[mathematician]], [[politician]], [[inventor]]. He worked in the [[Liu Song]] and [[Southern Qi]] dynasties. He was born in [[Jiankang]]. His ancestors were from [[Baoding]], [[Hebei]]. [[Emperor Xiaowu of Liu Song]] sent him to the Hualin Academy. In 461 he worked as an official in Nanxu (today [[Zhenjiang]], [[Jiangsu]]). He calculated the value of [[pi]] to be between 3.1415926 and 3.1415927. It was the most accurate estimate of Pi at the time. [[Category:429 births]] [[Category:500 deaths]] [[Category:Chinese astronomers]] [[Category:Chinese mathematicians]] {{asia-stub}}