摘要
分析了２次参数曲面的奇点分布情况，根据曲面的隐式方程的次数和奇点的分布情况将２次参数曲面分成８类。
The singular points of quadratic parametric surfaces is made clear.These surfaces are
dived 8 classes by the degree of their algebraic equations and the number of their singular points.
This classification is affine invariant.
出处
《复旦学报（自然科学版）》
CAS
CSCD
北大核心
1999年第2期240-246,共7页
Journal of Fudan University：Natural Science
