N

10

20

40

80

h

$\frac{1}{10}$

$\frac{1}{20}$

$\frac{1}{40}$

$\Delta t$

$\frac{1}{100}$

$\frac{1}{400}$

$\frac{1}{6400}$

$e_{H1}$

0.3127*e−4

0.7810*e−5

0.1952*e−5

0.4880*e−6

$e_{H2}$

0.2436*e−4

0.6084*e−5

0.1521*e−5

0.3802*e−6