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FDTD Code or Example? (2D wave eqn, rect grid, coords x,y,t)

• To: mathgroup at smc.vnet.net
• Subject: [mg111130] FDTD Code or Example? (2D wave eqn, rect grid, coords x,y,t)
• From: AES <siegman at stanford.edu>
• Date: Wed, 21 Jul 2010 07:13:38 -0400 (EDT)
• Organization: Stanford University

I'll be grateful for any pointers to FDTD packages or examples solving 
Maxwell's eqns or scalar wave eqn  (Del^2 + (d^2/dt^2)) u[x,y,t] on a 
rectangular x,y grid.

[Want to watch a signal radiate outward from a point source antenna and 
bounce off and transmit thru nearby rectangular dielectric blocks or 
slabs.]