ε

E Chebyshev , N = 18

E Chebyfun

E Runge-Kutta , N = 100 [3]

10−1

1.9836E-16

2.84E-17

2.52017E-02

10−2

4.1631E-16

1.01E-16

9.238658E-03

10−3

1.0646E-15

6.71E-16

8.836376E-03