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Table 4c Errors and computational rate for the EF-EEG-TOCS in Example 5.4

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 1.10 1.00 1.03 1.00 2.00 2.00 15 1.46e–05
8 1.10 1.00 1.00 2.00 1.00 1.00 36 1.57e–06 3.3
16 1.05 1.00 1.00 2.00 1.00 1.00 55 9.23e–08 3.9