二维声波传播过程模拟，采用一定合适的吸收边界条件-2D acoustic propagation simulation with PML boundary

三维抛物模型，可以计算三维声场，也可以计算二维和N*2D-Numerical ocean acoustic propagation in three dimensions

该文件是用matlab编程语言，针对电磁波传播特性，用编程方式实现电磁波在二维空间中的传播，并进行了传播过程的演示。(This document is a programming language in MATLAB. In view of the characteristics of electromagnetic wave propagation, the transmission of electromagnetic wave in two-dimensional space is rea