In this article, the problems in the BEM are introduced briefly after the principle and methods of the numerical methods are given. 本文在简要地介绍目前存在的主要数值计算方法之后，简要地介绍了边界元法中存在的问题。
In order to investigate and develop numerical calculation method for Schr odinger equation, we apply the finite difference method to eigenvalue problems in quantum mechanics. 摘要为研究和发展薛定谔方程的数值计算方法，本文将有限差分法应用到量子力学求解薛定谔方程本征值问题。
