计算物理 ›› 1990, Vol. 7 ›› Issue (4): 461-466.

• 论文 • 上一篇    下一篇

数值逆Laplace变换的级数加速方法

王璆, 李建良   

  1. 华东工学院应用数学系, 南京 210014
  • 收稿日期:1990-04-26 出版日期:1990-12-25 发布日期:1990-12-25

THE ACCELERATION METHOD FOR NUMERICAL INVERSION OF LAPLACE TRANSFORMS

Wang Qiu, Li Jianliang   

  1. Appl. Math. Dept., East China Institute of Technology
  • Received:1990-04-26 Online:1990-12-25 Published:1990-12-25

摘要: 基于振荡积分的数值计算,本文给出了Laplace逆变换的一系列具有递推关系的近似级数,且对每个级数进行了加速处理。尔后建立了这些级数序列的外推,提高了精度,又能对计算过程适时控制。

关键词: Laplace变换, 逆, 数值积分, 加速

Abstract: Based on the computing of oscillatory integral. A class of recurrence serices for approximating inversion Laplace transform, is suggested with the acceleration methods for every serice. Then the extrapolation method is applied to these serie's sequence.

Key words: Laplace transforms, inversion, numerical integration, acceleration