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Table 2 Problem 8.2: 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 1.6725(−07) 7.8640(−07) 2.3294(−06) 4.6091(−06)
1/16 1.0634(−08) 5.0936(−08) 1.4731(−07) 2.9153(−07)
1/32 6.7900(−10) 3.2712(−09) 9.2898(−09) 1.8373(−08)
1/64 4.1975(−11) 1.9759(−10) 5.8207(−10) 1.1480(−09)