I
n
[
]
:
=
X
j
w
=
1
/
(
I
w
-
2
)
^
2
O
u
t
[
]
=
1
2
(
-
2
+
w
)
I
n
[
]
:
=
A
b
s
A
r
g
[
X
j
w
]
O
u
t
[
]
=
1
2
A
b
s
[
-
2
+
w
]
,
A
r
g
1
2
(
-
2
+
w
)