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Table 5e Errors and order for EF-EEG-TOCS in Example 5.5 at \(\epsilon =0.01\)

From: Exponential basis and exponential expanding grids third (fourth)-order compact schemes for nonlinear three-dimensional convection-diffusion-reaction equation

L + 1 p q r α β γ Itr \(\mathfrak {l}_{2}^{ ( I,J,K )}\) \(\varTheta _{\infty }\)
4 0.90 0.70 1.00 023 1.00 1.00 5 5.59e–02
8 0.89 0.64 1.01 200 1.00 1.00 8 3.66e–03 2.5
16 1.20 1.00 1.00 042 1.00 1.00 9 1.88e–04 4.2