摘要
本文根据二次曲面的中心点坐标、主轴方向、半轴长这几个几何参数直接构造曲面方程,并称之为二次曲面的构造式方程.
Abstract
This paper constructs the surface equation directly based on the geometric parameters of a quad-ratic surface,which are the coordinates of the center,the direction of the principal axis,and the length of the semi-axis,and call this as the constructive equation of quadratic surface.
维普
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