直线法中几个问题的讨论

直线法是近几年来引入电磁理论的重要方法。本文着重讨论了直线法中两种不同的引入方法，即求解差分方程的方法和正交变换法之间的一致性，从而可以在正交变换法中奶方便地引用差分方程的研究成果，此外，也论述了直线法与谱域法的关系，从而可以为进一步认识两种方法的实质以及它们之间的互相借鉴提供参考。在此基础上，文章还提出了若干新的想法。

Discussions on Some Problems in the Method of Lines

Method of lines is an important method introduced recently.In this paper,the equivalence of two different methods introducing the method of lines is discussed.These two methods are the method of solving difference equations and the orthogonal transformation me- thod.The equivalence gives us the enlightening to use the results developed in the difference method area into the method of lines.In addition,the relationship between spectral domain approach and the method of lines is also presented.The revelation of this relationship facilitates the better understanding of both methods and is helpful for borrowing the technique from one to the other.Based on the demonstration,some new ideas are proposed.