Chongzhi

Some articles on chongzhi:

Zu Chongzhi - Life and Works
... Chongzhi's ancestry was from modern Baoding, Hebei ... Zu Chongzhi, along with his son Zu Gengzhi, wrote a mathematical text entitled Zhui Shu (Method of Interpolation) ... strongly urged that the fraction be named after Zu Chongzhi as Zu Chongzhi fraction ...
Chinese Mathematicians - Mathematics in The Period of Disunity
... century, another influential mathematician named Zu Chongzhi, introduced the Da Ming Li ... Today, the only sources are found in Book of Sui, we now know that Zu Chongzhi was one of the generations of mathematicians ... values over a whole millennium earlier than Europe" Along with his son, Zu Geng, Zu Chongzhi used the Cavalieri Method to find an accurate solution for calculating the volume of the sphere ...
Liu Hui's π Algorithm - Later Developments
... Zu Chongzhi was familiar with Liu Hui's work, and obtained greater accuracy by applying his algorithm to a 12288-gon ... That was the famous Zu Chongzhi π inequality ... Zu Chongzhi then used the interpolation formula by He Chengtian (何承天, 370-447) and obtained an approximating fraction ...
Wu Yuanji - Campaign Against The Imperial Government - Defeat By Li Su
... Wu Yuanji put Dong Chongzhi in charge of his strongest army, which rode mules, and Dong was stationed at Huiqu (洄曲, near Yancheng) to defend ... son Dong Chuandao (董傳道) to go to Dong Chongzhi's camp to express Li Su's good faith ... Dong Chongzhi immediately abandoned his troops and returned to Cai Prefecture to surrender to Li Su ...