h
o
r
i
z
o
n
t
a
l
a
x
i
s
-
1
5
v
e
r
t
i
c
a
l
a
x
i
s
8
0
r
o
t
a
t
i
o
n
a
n
g
l
e
0
2
(
c
o
s
(
α
)
(
x
-
h
)
+
s
i
n
(
α
)
(
y
-
k
)
)
2
a
+
2
(
s
i
n
(
α
)
(
x
-
h
)
-
c
o
s
(
α
)
(
y
-
k
)
)
2
b
1
a
=
5
3
.
8
0
b
=
9
9
.
2
1
h
=
-
1
5
k
=
8
0
α
=
0
Σ
=
1
.
0
2