I
n
[
]
:
=
x
=
0
;
s
=
1
;
P
l
o
t
1
s
2
π
-
2
(
x
-
x
)
2
2
s
,
{
x
,
-
2
s
,
2
s
}
O
u
t
[
]
=
-
2
-
1
1
2
-
1
.
0
-
0
.
5
0
.
5
1
.
0