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

Table 3

Numerical convergence of scheme (50)–(59) with ().

		Order
1/20	1.1049e − 002	—
1/30	4.8033e − 003	2.0545
1/40	2.6446e − 003	2.0745
1/50	1.6725e − 003	2.0462
1/60	1.1536e − 003	2.0461