3D FDTD Program with Enhanced Electromagnetic Simulation Capabilities

Building upon previous 1D and 2D implementations, this 3D FDTD program solves complex electromagnetic scattering problems using Yee's algorithm with comprehensive parameter configuration. The code structure includes discrete field updates (Ex, Ey, Ez, Hx, Hy, Hz) and PML boundary conditions for accurate three-dimensional wave propagation modeling. Users can execute simulations by specifying computational parameters in the configuration file.