计算物理 ›› 1993, Vol. 10 ›› Issue (2): 191-196.

• 论文 • 上一篇    下一篇

任意阶导函数的数值逼近

蒋勇, 戴煜   

  1. 南京理工大学应用数学系, 210014
  • 收稿日期:1992-01-12 出版日期:1993-06-25 发布日期:1993-06-25

NUMERICAL APPROXIMATION TO THE N-TH DERIVATIVES

Jiang Yong, Dai Yu   

  1. Nanjing University of Sience and Technology, 210014
  • Received:1992-01-12 Online:1993-06-25 Published:1993-06-25

摘要: 接着文献[1]的工作,本文主要考虑任意阶导函数的逼近问题,得到了基于数值积分的有效算法,给出了误差估计和收敛性。作为应用之一,最后指出了本方法在剧烈震荡函数积分计算中的应用。

关键词: 数值逼近, 算法, 误差估计

Abstract: Continuing the work of [1], this paper considers mainly the approximation to the n-th derivatives of functions, and develops an effective algorithm with its convergance and error astimate by the method of numerical integration. As an application, the algorithm is used to evaluate the integration of highly oscillatory functions and proves efficient.

Key words: numerical approximation, algorithm, error estimation