摘要
本文主要研究了高阶差分和低阶差分的不足,从而提出了一种新型的混合差分法。
In the light of defects of the high order difference and low order difference,a new type of hybrid difference method is put forward in this paper.The method has advantage over the high order difference method and low order difference method.
关键词
高阶差分
混合差分法
Possion方程
差分格式
high order difference method,low order difference method,hybrid difference method.