计算电磁学作业---1、对圆锥面进行划分网格；2、高斯消去法求解方程，都用matlab编写。含有报告和程序（在报告中，可以用）-Computational Electromagnetics job--- 1, the conical surface mesh　2, the Gaussian elimination method to solve equations, are written with matlab. Contains reports and procedures (in the report, can be used)