古亩折合市亩的三个公式李虎本文运用基本的数学方法，根据中国历史时期亩制的大小变化，计算推导出古亩折合市亩的三个公式。其较之目前所通用的计算方法简单、精确、方便。在中国古代史的教学和研究中，为了进行定量分析常需进行古今度量衡的换算，在农业方面最常见的就... Ancient acres equivalent to the city of mu three formulas Li Hu This article uses the basic mathematical methods, according to the historical changes in the size of the mu system, calculated deduced from the ancient acres of mu three formulas. It is simpler, more precise and more convenient than the current calculation method. In ancient Chinese history of teaching and research, in order to conduct quantitative analysis often need to carry out the conversion of ancient and modern weights and measures, the most common in agriculture ...