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圆锥曲线中关于线段长或距离的问题,往往牵涉到两个点的坐标运算.思路自然,但运算量大.常用的简化思路是将关于x,y的坐标转化为仅含一个坐标x或y的形式,即降维的策略来求解.如何依据题意来达到降维目的,本文试作些探究如下.
Conic curve on the length or distance of the line, often involving the coordinates of the two points. Thinking natural, but a large amount of computation. Commonly used to simplify the idea of the x, y coordinates into only one coordinate x or y The form of dimensionality reduction strategy to solve.How to achieve the purpose of dimensionality reduction based on the topic, this paper try to explore some of the following.