Dear all, I have some problems with a program called the simulation of laser interaction with materials. In this program, they asked for some parameters which I am unsure of but I believe it has something to do with space grid for simulating the thermal conduction. This is a 1D heat conduction simulation of laser heating on a semiconductor (a.k.a laser annealing). These are the parameters that have asked for: ========================================= NUMBER OF NODES 100 DELTA X (A) 200 DELTA X1 (A) 600 DELTA X2 (A) 1600 DELTA X3 (A) 4800 KX 70 KY 80 KZ 90 TOP LAYER NODE (L6) 10 MIDDLE LAYER NODE (L7) 20 ========================================= Can anyone help me with what delta x, delta x1, delta x2, delta x3, kx, ky and kz are for? The program uses a finite difference method for solving. Thanks.