摘要
任意二次曲面方程在一次旋转变换和一次平移变换下总能化为标准形,依此方法易见图形实质。
The definition of quasi-normal form of quadric surface equation is given. It is provided that every quadric surface equation can be converted to its normal form through a rotational transformation and a translational transformation. Therefore, the true feature of the quadric surfaces is shown easily.
出处
《江苏广播电视大学学报》
2003年第3期49-52,共4页
Journal of Jiangsu Radio & Television University
关键词
二次曲面
旋转变换
准标准形
标准形
quadric surface equation
rotational transformation
normal form
quasi-normal form
