| 关于共焦二次曲线束的两个问题 |
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| 引用本文： | 陈达惠.关于共焦二次曲线束的两个问题[J].福建师范大学学报(自然科学版),1989(2). |
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| 作者姓名： | 陈达惠 |
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| 作者单位： | 福建师范大学数学系 |
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| 摘 要： | 本文指出并更正了较长时期以来某些《高等几何》教科书中关于共焦二次曲线束的内容论述上的错误,并建议将“共焦抛物线束”改为“共焦抛物线族”。
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| 关 键 词： | 二次曲线 焦点 共焦束 |
Two Problems About Co-focal Quadratic Curve Beam |
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| Cheng Dahui.Two Problems About Co-focal Quadratic Curve Beam[J].Journal of Fujian Teachers University(Natural Science),1989(2). |
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| Authors: | Cheng Dahui |
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| Institution: | Department of Mathematics |
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| Abstract: | The thesis points out and redresses the improper treatment of co-focal quadratic curve beam in some higher geometry text-books and suggests that "co-focal parabola beam" be substituted by the name "co-foeal parabola family". |
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| Keywords: | Quadratic curve Co-focus Co-focal beam |
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