|x|在Newman结点组的有理插值

• 作者: 张慧明 李建俊
• 来源期刊: 高等学校计算数学学报
• 学科: 数学
• 年，卷（期）: 2016,（4）
• 页码范围: 367-374
• 页数: 8页
• 分类号: O174.41
• 语种: 中文

摘要

The rate of convergence for Newman-type rational interpolation to |x| is studied in this paper.It is proved that,by increasing nodes near the zero,the exact order of the approximation to |x| by Newman-type rational interpolation at the Newman nodes can be improved to O(n-1/2 e-3√n/2),the result is better than the classical results of Newman [2].Further explanation:increases nodes in the near zero can improve the approximation order of the original [16].

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	李建俊		21	53	4.0	7.0
2	张慧明		4	0	0.0	0.0