N

E Chebyshev

E Collocation [2]

E Galerkin [1]

6

7.9662E-04

0.40E-02

----

8

1.5049E-05

0.20E-03

0.14E-03

10

1.8040E-06

0.69E-05

0.16E-06

14

1.1496E-10

0.47E-09

0.13E-10

16

4.9300E-13

0.20E-10

0.13E-10