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. Author manuscript; available in PMC: 2011 Oct 15.
Published in final edited form as: J Comput Appl Math. 2010 Oct 15;234(12):3496–3506. doi: 10.1016/j.cam.2010.05.022

Table 4.

Maximum errors, CPU seconds and the number of iterations of Problem 2 using plane relaxation and point relaxation smoothers with Re = 107.

Point relaxation Plane relaxation
h strategy # iter CPU error order # iter CPU error order
1/8 FOC 52 0.009 6.10e-2 2.1 8 0.017 6.10e-2 2.1
SOC (16,51),55 0.010 5.18e-2 2.7 (4,8),55 0.019 5.18e-2 2.7
1/16 FOC 164 0.262 1.41e-2 2.1 17 0.320 1.41e-2 2.1
SOC (51,164),74 0.294 7.96e-3 3.0 (10,16),74 0.389 7.96e-3 3.0
1/32 FOC 500 7.621 3.36e-3 2.0 26 4.852 3.36e-3 2.0
SOC (164,472),79 7.808 1.01e-3 3.3 (16,26),79 3.247 1.01e-3 3.3
1/64 FOC not converge 46 70.073 8.21e-4 2.0
SOC not converge (26,45),81 80.787 1.06e-4 3.2