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Table 2d Errors and computational rate for the EF-EEG-TOCS in Example 5.2

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 \(\mathfrak {l}_{2}^{ ( I,J,K )}\) \(\varTheta _{\infty }\)
4 1.40 1.40 1.40 65 64 63.9 1.95e–03
8 1.30 1.20 1.30 64 64 63.9 1.29e–04 3.9
16 1.10 1.10 1.20 64 64 63.9 1.64e–05 3.0
32 1.01 1.01 1.09 64 64 63.9 1.98e–06 3.0