Hyperbola

双曲线

A hyperbola is a conic section that meets the condition that the eccentricity e>1. A hyperbola in polar coordinates has the form

双曲线是满足离心率e>1条件的圆锥曲线。在极坐标中，双曲线的形式为

In cartesian coordinates, a hyperbola centered on zero has the form

This describes a pair of symmetric hyperbolas and the asymptotes specified conveniently.

在笛卡尔坐标系中，以原点为中心的双曲线形式为 This 描述了一对对称的双曲线以及方便指定的渐近线。

Another perspective of the formation of a pair of hyperbolas by sectioning the cone parallel to the axis of the cone.

另一种观点是通过平行于锥轴截取圆锥体，可以形成一对双曲线。

Each of the conic sections can be described in terms of a semimajor axis a and an eccentricity e. Representative values for these parameters are shown along with the types of orbits which are associated with them.

每个二次曲线都可以用半长轴a和偏心率e来描述。这些参数的代表性值如图所示，并列出了与之相关的轨道类型。

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索引

HyperPhysics*****HyperMath*****Geometry

HyperPhysics ***** HyperMath ***** 几何

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