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Table 3a Errors and order for UM-FOCS and EEG-TOCS in Example 5.3

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 \(\mathfrak {l}_{2}^{ ( I,J,K )}\) \(\varTheta _{\infty }\) p q r \(\mathfrak {l}_{2}^{ ( I,J,K )}\) \(\varTheta _{\infty }\)
4 1.0 1.0 1.0 9.06e–04 1.20 1.30 1.30 8.75e–05
8 1.0 1.0 1.0 5.96e–05 3.9 1.20 1.10 1.10 5.86e–06 3.9
16 1.0 1.0 1.0 3.69e–06 4.0 1.10 1.10 1.00 7.34e–07 3.0