SIMULATION METHOD

PROBLEM TO BE SOLVED: To obtain a higly accurate simulation method capable of improving the approximate accuracy of a boundary shape without restricting lattice arrangement only to orthogonal lattice arrangement and removing restriction due to element division from the number and combination of peripheral lattice points to be entered into an element equation for respective lattice points. SOLUTION: Respective lattice points 10 are arranged in space (ST2), element simultaneous equations for the lattice points are found out (ST3) and the simultaneous equations are solved (ST4) to prepare an element equation by using obtained numerical solutions as linear combination coefficients (ST5). Large simultaneous equations are constituted of collecting element equations for all lattice points (ST7), the equations are solved (ST8) and calculated numerical solutions are outputted as simulation results.