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GUO ShuChun ed. ZhongGuo Kexue Jishu Dianji Tonghui Shuxuejuan, Henan Jiaoyu Pub. Co., 1993.(郭書春主編, <<中國科學技術典籍通彙>> 數學卷, 河南敎育出版社, 1993.)
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2 |
HONG Sung Sa, HONG Young Hee, KIM Chang Il, Gougushu in the 18th century Chosun, The Korean Journal for History of Mathematics 20(4) (2007), 1-22.(홍성사, 홍영희, 김창일, 18 世紀朝鮮의 句股術, 한국수학사학회지 20(4) (2007), 1-22.)
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3 |
JEONG Yag-yong, Gugo Wonlyu, Yeoyudang Jeonseo Boyu Four, Gyeongin Munhwasa, 1975.(丁若鏞, <<勾股源流>>, 與猶堂全書補遺四, 景仁文化社, 1975.)
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4 |
JEONG Yag-yong, Gugo Wonlyu, chapter 1-3, National Library of Korea.(丁若鏞, <<勾股源流>> 1-3章, 國立中央圖書館, http://www.nl.go.kr.)
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5 |
JING Yushu ed. ZhongGuo Lidai Suanxue Jicheng, Shandong Renmin Pub. Co., 1994.(靖玉樹編勘, <<中國歷代算學集成>>, 山東人民出版社, 1994.)
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6 |
MEI Wending, Meishi Lishuan Quanshu, Tohoku University Library.(梅文鼎, <<梅氏曆算全書>>, 東北大學圖書館.)
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