Table 3: Example 6.3: the maximum absolute errors (with CPU time).

Proposed 𝑂 ( 𝑘 2 + 𝑘 2 2 + 4 ) -method 𝑂 ( 𝑘 4 + 𝑘 2 2 + 4 ) -method discussed in [6]
𝛾 = 1 𝛾 = 2 𝛾 = 3 𝛾 = 1 𝛾 = 2 𝛾 = 3

1 / 4 (CPU time)0.4719E-030.9207E-040.2974E-040.8616E-030.7412E-030.4433E-04
(0.2680)(0.2530)(0.2712)(0.3322)(0.3221)(0.3476)
1 / 8 (CPU time)0.3186E-040.7369E-050.2594E-060.5050E-040.4244E-040.2211E-05
(3.0112)(2.9443)(2.9417)(3.8616)(3.7824)(3.8806)
1 / 1 6 (CPU time)0.2041E-050.4868E-060.1008E-070.3368E-050.2018E-050.1060E-06
(49.9442)(47.6788)(49.0598)(63.8846)(62.1258)(63.1625)
1 / 3 2 (CPU time)0.1279E-060.3061E-070.6260E-090.2100E-060.1212E-060.6214E-08
(703.2124)(659.7450)(685.7455)(879.6670)(825.1212)(832.6086)