无穷远直线
- 网络Infinite straight line;line at infinity
无穷远直线-
以无穷远直线为基础讨论二阶曲线的中心、直径、渐近线等几个仿射概念，并联系解析几何中的有关性质，深入讨论它们之间的一致性。
Based on the infinitely straight line , this thesis discusses the concepts of curve of second orders center , diameter , advance gradually in the line .
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本文抛弃无穷远直线，充分运用矩阵、初等变换的知识，给出二次曲线的一种分类判别法。
Without considering the infinite far straight line , the essay is mainly about one kind of classifying judgement ways with the knowledge of matrix and primary alternation , then instruct how to use it with some examples .