摘要
提出了一种新的MQ径向基函数拟插值算法,给出了该格式的构造原理及其性质,并用它来逼近函数.通过数值算例及与真实值的对比,验证了所提方法的有效性.提出的方法形式简单,不需要求解任何线性方程组,容易实现,且具有不错的逼近效果.
In this paper, a new MQ radial basis function quasi-interpolation algorithm is proposed. Its construction and properties are presented, and it is used to approximate functions. The validity of the method is verified by the comparison between the numerical values and the true values of functions. The presented method is sim- ple, easy to implement, accurate, and need not solve any linear equations.
作者
张继红
王瑞林
ZHANG Jihong WANG Ruilin(School of Mathematics and Physics, Dalian Jiaotong University, Dalian 116028, China)
出处
《大连交通大学学报》
CAS
2017年第5期118-120,共3页
Journal of Dalian Jiaotong University
基金
辽宁省博士科研启动基金资助项目
关键词
MQ径向基函数
拟插值格式
数值逼近
MQ radial basis function
quasi-interpolation scheme
numerical approximation
