Table 2: The maximum absolute error as reported in [28] is , while in our case, it is .

Exact sol.OHAM sol. (3.10) (3.10)

−1.00.5403023060.540302301
−0.80.1950778790.195077879
−0.6−0.231093972−0.231094010
−0.4−0.626321476−0.626321543
−0.2−0.901661252−0.901661334
0.0−1.000000000−1.000000086
0.2−0.901661252−0.901661334
0.4−0.626321476−0.626321543
0.6−0.231093972−0.231094010
0.80.1950778790.195077879
1.00.5403023060.540302301

= exact − approximate.