| Yang Thaojun was born in Wucheng County (now Huzhou City), Zhejiang Province in the fourth year of the reign of Emperor Xianfeng (i.e. 1854 A.D.). He styled himself Chengzhi. His alternative name was Xupu.He died during the period from the fifth year (i.e.1916 A.D.) to the twentieth year of Mingguo.He went to school at Shang Hal Guang Fang Yan Kuan in the sixth year of the reign of Emperor Tongzhi (i.e.1868 A.D.). He was sent for English Kuan in Jing shi Tong Wen kuan to learn by Zeng Guofan who acted as a president in the region, including Jiangxi, Jiangsu and Anhui in the tenth year of the reign of Emperor Tongzhi (i.e.1871 A.D). He became a translator of Su Song Dai Dao department after graduating in the fifth year of the reign of Emperor Guangxu (i.e.1879 A.D.). He followed Xu Jingcheng (1845 A.D.? 900 A.D.) to go to overseas as a retinue in the tenth year of the reign of Emperor Guangxu (i.e.1884 A.D.). After many years, he came back and was a candidate bestowed Dao Yuan in Jiangsu Province. Yang Zhaojun was a mathematic teacher at Jin Ling Tong Wen Kuan in the nineteenth year of the reign of Emperor Guangxu.He turned surveillance at Jiang Nan Chu Cal Xue Tang in the twenty-third year of the reign of Emperor Guangxu (i.e.1897 A.D.). After five years, he was an ambassador of Chinese embassy in Beljium. He was asked to come back in the thirty-first year of the reign of Emperor (1uangxu (i.e. 1905 A.D.). His work on mathematics was Xu Man Jing Lu Suan Xue (24 volumes total) written in the twenty-fourth year of the reign of Emperor Guangxu (i.e.l898 A.D.). In addition, he still wrote Yang Xu Pu Chu Shi Zou Yi according to Qing Yi Wen Zhi Bu Bian. The typical problems of other volumes derived from Tong Wen kuan Mathematical Exercises except the first volume "Tuo Qu Tong Quan"and the second volume" Pao Bai zhi Yong" During his learning mathematics, Yang Zhaojun meditated some mathematic problems and got a few new results. These results were not important in view of mathematicians who engaged in studying and translating mathematics. The paper analyzes and studies four aspects of Yang's mathematical work. These are 2 The paper analyzes and studies four aspects of Yang抯 mathematical work. These are as follows. 1. The research on the measurement methods. Yang put forward?tetrahedron measurement?method by himself after he studied the two methods, which included 搑ight triangle measurement?and 搃nclined triangle measurement? He felicitously applied some tetrahedron theories to the measurement. 2. The research on ellipse, hyperbola and parabola. Yang attested some propositions in Conics by his own proof methods although he advanced few new propositions. Li Shanlan who was a lead teacher at Jing Shi Tong Wen kuan solved many construction problems of elliptical focal points. After that time ,Yang zhaojun studied and propounded a few construction problems of hyperbolic foci. 3. The research on the geometric construction problems of contact of circles. Yang couldn抰 correctly resolve Apollon抯 circles and 揻inding a center of one circle which circumscribed the other. They both contacted a determined chord of circular segment and their centers were in this circular arc? However, he studied and resolved, other construction problems of contact of circles. Yang抯 Ping Yuan Rong Qie was the first treatise on this in the history of traditional Chine... |
PDF Full Text Request