calculate_domain_size.m calculate_material_component_values.m create_bricks.m create_PEC_plates.m create_spheres.m define_geometry.m define_problem_space_parameters.m display_3D_geometry.m display_material_mesh.m display_material_mesh_gui.m display_problem_space.m fdtd_solve.m initialize_fdtd_material_grid.m object_drawing_functions.m