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圆维曲线是圆、椭圆、双曲线和抛物线这四种曲线的统称.圆维曲线中各自的定义揭示了各自的性质及其几何特征,是建立各自曲线方程的基础.许多涉及圆锥曲线的问题巧用定义求解,往往能化繁为简,达到简练明快的效果.
The circular dimension curve is the collective name of the four types of curves: circle, ellipse, hyperbola and parabola. The respective definitions in the circular dimension curve reveal their respective properties and their geometric characteristics, and are the basis for establishing their respective curve equations. Many problems involving conic curves are involved. Clever use of the definition of the solution, can often be simplified, to achieve concise and bright results.