用双曲线第二定义画双曲线

摘要

This paper introduces a kind of method, I.e. Hand-painted hyperbola with hyperbolic second definition. It is effective and accurate, and can directly show the track of the formation of hyperbola, which is suitable for any hyperbolic equation.%本文介绍一种按双曲线第二定义手工绘制双曲线的方法.它高效准确,能直观反映双曲线形成的轨迹,适合任意双曲线方程.