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Table 4a Errors and computational rate for the UM-FOCS 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 1.00 1.00 1.00 0.01 0.01 0.01 20 3.78e–04
8 1.00 1.00 1.00 0.01 0.01 0.01 58 2.00e–05 3.9
16 1.00 1.00 1.00 0.01 0.01 0.01 145 1.14e–06 4.0