有限差分二阶二维声波方程加吸收边界变速剖面研究-Two-dimensional finite-difference second-order wave equation with absorbing boundary speed profile of

二维均匀各向同性介质弹性波动方程有限差分波场模拟-Two dimensional homogeneous isotropic medium elastic wave equation finite difference wave field simulation

求解二维泊松方的电势电场的放电问题，利用的是有限差分的方法-Solving the potential of the electric field of the two-dimensional Poisson side discharge problems, using the finite difference method