h

Δt

2

1

1/2

1/4

h/4

2.36e−02

7.48e−3

1.95e−03

4.95e−4

h/8

1.69e−02

5.73e−3

1.47e−03

3.69e−4

h/16

1.45e−02

5.02e−3

1.28e−03

3.20e−4