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明朝万曆十年(1582年),意大利教士利瑪竇(Metteo Ricci 1552—1610)来华,将西欧学术輸入我国。此后,又有教士邓玉函(Jean Terrenz 1576—1630,瑞士人)、湯若望(Johann Adam Schall von Bell1591—1666,德国人)等,于秦昌元年(1620年)携西书七千部而来。我国著名科学家徐光启(1562—1633)与教士共同研討,东土西学,漸見发揚。由邓玉函譔、湯若望訂,并由徐光启督修之“大測”于崇禎四年(1631年)正月二十八日呈进后,列入“崇禎曆书”,是为我国第一部三角学。“大测”一书在那时是如何修成的?三百年来,論者极少;今經笔者查核,它除引用欧几里得(Euclid)的
In the ten years of the Wanli period of the Ming Dynasty (1582), Italian priest Matteo Ricci (1552-1610) came to China to import Western European scholarship into China. Since then, there have been priests, Deng Yuxin (Jean Terrenz 1576-1630, Swiss), and Johann Adam Schall von Bell (1591-1666), Germans, etc., who came with the 7,000 Western books in the first year of Qinchang (1620). The well-known Chinese scientist Xu Guangqi (1562–1633) studied with the priests. Written by Deng Yuh-wen and Tang Ruowang, and Xu Guangqian’s “Great Measure” was written on the 28th of the first month of Chongzhen’s four years (1631). It was included in the “Chongzhen almanac” and was the first triangle in China. learn. How did the “Measurement” book be made at that time? In the past 300 years, there have been very few authors; today, the author has checked it, except that it quoted from Euclid.