摘要
在苏步青等著的《计算几何》一书中给出了三次参数曲线段的奇点和拐点的分布定理,此定理尚有几种情况未讨论,本文给出该定理的补充分类。
In this paper, a distribution theory of inflection points and singular points is subjected, some cases in it are not yet discussed. The following results are proved: when λ=3 (μ(?)0) and μ= 3 ( λ(?)0 ), there is a inflection point on curve; when λ = (μ = 3, there are two inflection points; when λ>3, μ<0 in 1_4 and μ> 3, λ<0 in 1_2, there is a double point on curve.
出处
《江西师范大学学报（自然科学版）》
CAS
1990年第1期15-17,共3页
Journal of Jiangxi Normal University(Natural Science Edition)
