x

${\varphi }_{Exact}$

${\varphi }_{R.K.}$

$E_{R.K.}$

${\varphi }_{B.B.}$

$E_{B.B.}$

0

0

0

0

0

0

0.1

0.0030000

0.0035991

5.9912 × 10⁻⁴

0.0029999

8.8781 × 10⁻⁸

0.2

0.0120000

0.0013192

1.1925 × 10⁻³

0.0119985

1.4161 × 10⁻⁶

0.3

0.0270000

0.0287733

1.7733 × 10⁻³

0.0269929

7.0746 × 10⁻⁶

0.4

0.0480000

0.0503338

2.3338 × 10⁻³

0.0479784

2.1553 × 10⁻⁵

0.5

0.0750000

0.0778692

2.8692 × 10⁻³

0.0749515

4.8471 × 10⁻⁵