有人会极点极线吗？

闲聊吹水
1

救命，你们最后这几十天的数学怎么熬过来的。。。。。

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2

甚至没听说过什么是极点极线（）
话说你在准备高考吗？

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3

I think that is the pole and polar of a circle, which is a basic knowledgement of geometry.

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4

是的，显然，这不在高中考纲，但是使用它们能大幅度优化计算过程
枯了

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5

Yes, actually, they are not very basic, they are a bit difficult for my high school years, it is not only for circles, it is also suitable for other conic curves, I use it mainly for quick questions…

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