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主径面 (2) 2
二次曲面 (2) 2
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墓葬;荆州市;湖北省;挡板;侧板;墓主;随葬器物;战国时期;覆面;腹径 (1) 1
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by 许娟
安庆师范学院学报(自然科学版), ISSN 1007-4260, 2015, Issue 1, pp. 109 - 130
O231.9; 二次型是高等代数中非常重要的内容。化二次型为标准形是二次型教学中的重点与难点,除了线性替换法、矩阵法两个常用方法外,这里我们将给出从解析几何的角度出发的一种新方法,该方法简单、直观。 
Journal Article
福建师大福清分校学报, ISSN 1008-3421, 2013, Issue 2, pp. 13 - 18
Journal Article
Wenwu, ISSN 0511-4772, 1999, Issue 4, pp. 18 - 28
Journal Article
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