Liu Hui was a Chinese mathematician who published a commentary in 263 CE on Jiu Zhang Suan Shu. He was a descendant of the Marquis of Zixiang of the Eastern Han dynasty and lived in the state of Cao Wei during the Three Kingdoms period of China. 225 – 295; died at about 69. Alive at the same time as Constantine the Great, Nagarjuna, Origen, Cyprian, and Plotinus. Wiki link