| “牟合方盖”研究 |
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| 引用本文： | 李宇祎.“牟合方盖”研究[J].雁北师范学院学报,2003,19(5):107-108. |
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| 作者姓名： | 李宇祎 |
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| 作者单位： | 雁北煤炭工业学校,山西,大同,037005 |
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| 摘 要： | 我国很早就开始了球体积的研究 ,《九章算术》少广章得出的公式为V球 =9D3 / 1 6 ,三世纪数学家刘徽发现这是错误的 ,他认为球体积应为外切于它的一个牟合方盖的体积 ,所谓“牟合方盖”是两个半径相等的直交圆柱面相贯所围成的立体 .但刘徽没有直接求出牟合方盖的体积 .二百年后 ,祖冲之父子推得了 ,即祖日恒原理
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| 关 键 词： | 球 牟合方盖 祖日 恒原理 |
| 文章编号： | 1009-1939(2003)05-0107-02 |
| 修稿时间： | 2003年7月20日 |
Study on Mouhefanggai |
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| LI,Yu,yi.Study on Mouhefanggai[J].Journal of Yanbei Teachers College,2003,19(5):107-108. |
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| Authors: | LI Yu yi |
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| Abstract: | He considered that cubic measure is a three-dimensional folded by two intersecting cylinder outsidethrough each other.That is ,Mou He Fang Gai is cylinder outside equal its one cubic measure .However, Liu-Hui could not seek directly to cubic measure of Grind-in Square Canopy.After two hundred years,Zu and his son obtained the result.That is the Axiom by Zu Geng. |
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| Keywords: | glob mou he fang gai axiom by zu geng |
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