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Table 3 Problem 8.3: The maximum absolute errors

From: Operator compact exponential approximation for the solution of the system of 2D second order quasilinear elliptic partial differential equations

h Proposed method (6.5) Method discussed in [21]
α = 1 α = 2 α = 1 α = 2
1/8 8.7756(−07) 4.5043(−07) 1.6604(−06) 2.8030(−06)
1/16 4.1258(−08) 3.4516(−08) 1.0530(−07) 1.7649(−07)
1/32 1.8296(−09) 2.4751(−09) 6.6915(−09) 1.1082(−08)
1/64 1.1482(−10) 1.4936(−10) 4.2259(−10) 6.9292(−10)