h

Method

Error at $x_N=15$

0.25

SHMM

[8]

[7]

[19]

2.48E-15

8.15E-08

5.40E-07

1.90E-04

0.1

SHMM

[8]

[7]

[18]

2.61E-19

3.60E-11

2.80E-10

3.7E-05