Research Article

Multigrid Method for Solution of 3D Helmholtz Equation Based on HOC Schemes

Table 3

Comparison of maximum absolute errors and CPU (seconds) for a Multigrid method with different schemes, for Example 3, , , and .

CPU (seconds) CPU (seconds)CPU (seconds)

2 4.130 2.427 0.430
3 6.768 2.298 0.677
4 6.976 3.010 0.898
5 9.203 3.243 1.574
6 14.800 4.512 1.906