摘要: 二维波动方程初边值问题:\begin{equation}\left\{\begin{split}&\frac{\partial^2u}{\partial t^2} = D(\frac{\partial^2u}{\partial x^2} + \frac{\partial^2u}{\partial y 阅读全文
posted @ 2020-07-20 00:27 LOGAN_XIONG 阅读(535) 评论(0) 推荐(0)