《九章算术》是中国古代数学专著,承先秦数学发展的源流,进入汉朝后又经许多学者的删补才最后成书,这大约是公元一世纪的下半叶。《九章算术》的内容十分丰富,全书采用问题集的形式,收有246个与生产、生活实践有联系的应 “Nine chapters of arithmetic” is the ancient Chinese monographs, Cheng Qin mathematical development of the source, after entering the Han Dynasty and many scholars after the deletion of the final book, which is about the second half of the first century AD. “Nine chapters of arithmetic,” the content is very rich, the book uses the form of a set of questions, received 246 with production and life practice should be linked