σ

x 1

x 2

ε

f

10

0

2.0

0.0081

1.0

102

0

2.0

0.0038

1.0

103

0

2.0

0.0016

1.0

104

0

2.0

0.0008

1.0

105

0

2.0

0.0004

1.0

106

0

2.0

0.0001

1.0