摘要
给出了平面中线上分布的散乱数据点的自然样条的局部插值基,并证明了这个基等价于自然样条的截幂基,给出了这些基函数的局部紧支集。做出了算法并且给出了算例,效果良好。
We present a natural spline local interpolation basis of scattered data in the lines of a plane, and prove this basis is equivalent to the truncate basis of natural splines, and present the local compact set of these basis functions and the algorithms with examples of gearing to large scale computing. For its simpleness and easy implementation by computer, the way can deal with a part of interpolation problems of scattered data in a plane.
出处
《工程数学学报》
CSCD
北大核心
2003年第4期59-64,共6页
Chinese Journal of Engineering Mathematics
基金
香港中山大学高等学术研究中心基金会资助.
关键词
局部插值基
自然样条
散乱数据
平面线上
local basis
natural spline
scattered data in the lines of a plane
