关于完美匹配层（PML）的说明
Notes on Perfectly Matched Layers (PMLs)
摘要：
本笔记旨在简要介绍波动方程的完全匹配层（PML）吸收边界的理论和实践，最初是为麻省理工学院课程18.369和18.336开发的。重点讨论了复杂拉伸坐标的观点，并讨论了PML的局限性。
英文摘要：
This note is intended as a brief introduction to the theory and practice of perfectly matched layer (PML) absorbing boundaries for wave equations, originally developed for MIT courses 18.369 and 18.336. It focuses on the complex stretched-coordinate viewpoint, and also discusses the limitations of PML.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
