x

Error (Present method)

Error (Parand et al. [15] )

0.01

2.32e−14 (h = −0.4)

2.24e−08

0.02

9.29e−14 (h = −0.4)

1.58e−08

0.05

5.77e−13 (h = −0.4)

2.12e−08

0.1

2.20e−12 (h = −0.4)

1.78e−08

0.2

3.30e−12 (h = −0.4)

2.09e−08

0.5

3.15e−09 (h = −0.4)

2.62e−08

0.7

2.07e−09 (h = −0.38)

3.27e−08

0.8

5.00e−09 (h = −0.39)

3.79e−08

0.9

4.95e−09 (h = −0.399)

5.48e−08

1

2.59e−09 (h = −0.399)

2.51e−09