A New Numerical Approximation Method for Two-Dimensional Wave Equation with Neumann Damped Boundary

Table 1

Numerical convergence of scheme (50)–(59) in time (, ).

		Order
1/20	1.2948e − 002	—
1/40	2.9438e − 003	2.1370
1/50	1.8099e − 003	2.1799
1/60	1.2057e − 003	2.2280
1/70	8.4660e − 004	2.2938