Who's Who in China (edisi ke-3)/Ch'en Tu-heng
Admiral Chen Tso-cheng was born in Chihli province in 1865. At the age of 16, he entered Tientsin Naval College, from which he was graduated with honors in 1884. He was then sent by the government to pursue higher naval studies in England, where he specialized in gunnery at Greenwich. In 1888, he served abroad on a British man-of-war in the Mediterranean. On returning to China, he was appointed a teacher on various training ships in the Chinese navy, and also held important posts in almost all of the Chinese Naval Colleges. Admiral Chen has been specially proficient in mathematics, having invented the angle trisector, which is used in the solution of cubic equations. He has taught mathematics in the Normal school, the High Normal and the Technical College, Peking. For distinguished work in the navy, the Chinese government made him a captain in 1914 and a Rear-Admiral in 1924. Admiral Chen is at present Director of the Shanghai College, Chiaotung Ta Hsu University.
