Err for k = 4

Err for k = 5

Case I

Case II

Case I

Case II

Case III

1.023

5.483646e−08

1.001313e−09

1.450115e−08

1.450198e−08

1.448318e−08

1.123

7.475030e−08

1.039073e−09

2.041163e−08

2.040973e−08

2.040707e−08

1.223

9.301246e−08

4.935578e−09

2.645463e−08

2.644890e−08

2.645422e−08

1.323

1.104840e−07

9.038723e−09

3.120210e−08

3.120180e−08

3.120062e−08

1.423

1.267508e−07

1.454907e−08

3.532345e−08

3.532144e−08

3.531459e−08

1.523

1.408839e−07

1.992274e−08

3.884826e−08

3.884982e−08

3.876058e−08

1.623

1.537364e−07

2.583176e−08

4.128344e−08

4.128357e−08

4.128494e−08

1.723

1.633737e−07

3.115442e−08

4.305053e−08

4.305124e−08

4.304851e−08

1.823

1.693086e−07

3.594488e−08

4.550337e−08

4.550378e−08

4.550700e−08

2.023

1.686840e−07

4.303219e−08

4.830085e−08

4.829873e−08

4.854291e−08