椭圆的选择
--- 介绍 ---
一个椭圆 (水平或垂直放置) 由下面的方程给出
,
或者
,
其中, 点 ) 是椭圆中心, 椭圆两轴的比值由
和 的比值确定(如何计算?).
此在线练习可以先给出椭圆图象,
然后让你选择其方程, 或者先给出方程然后让你选择其图象.
The most recent version
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- Description: 根据椭圆方程确定椭圆, 或反过来求. interactive exercises, online calculators and plotters, mathematical recreation and games
- Keywords: interactive mathematics, interactive math, server side interactivity, geometry, ellipse, curves, conics