ε
l
i
m
x
c
f
(
x
)
=
L
●
●
●
ε
=
1
δ
1
=
2
.
0
2
7
7
5
δ
2
=
3
.
0
8
6
0
1
a
u
t
o
m
a
t
i
c
a
l
l
y
c
a
l
c
u
l
a
t
e
δ
v
a
l
u
e
s