N

40

80

160

320

640

1280

${\max }_n{\Vert e^{\left(n\right)}\Vert }_{\infty }$

1.859 × 10⁻⁴

4.658 × 10⁻⁵

1.165 × 10⁻⁵

2.912 × 10⁻⁶

7.284 × 10⁻⁷

1.825 × 10⁻⁸

Conv.rate

1.998

2.000

2.000

1.999

1.998