摘要
本文针对充分光滑函数的数值差商公式的余项问题进行研究,对王兴华等于文[1]中提出的关于超收敛数值差商公式的猜想进行了证明,推广了该文中定理的适用范围,得到了比较广泛的一类超收敛的数值差商公式余项的lagrange表示.
In this paper,the problerm of remainder for numerical divided difference is studied. The conjecture about several divided difference formulas with superconvergence which has been derived by Xinghua Wang(see[1]) is proved, and the applicable area of Wang's theorem is extended .A type of more general super convergent remainder for Lagrange interpolation is proposed.
出处
《计算数学》
CSCD
北大核心
2007年第1期81-88,共8页
Mathematica Numerica Sinica
基金
国家自然科学基金(批准号:10271022
19871010
60373093
60533060
10401021)资助项目
关键词
数值差商公式
超收敛
Numerical divided difference, Super convergence