Specifications

=
c
2
√ (x
1
- x
0
)
2
+ (y
1
- y
0
)
2
c
( )
= cos
)
( )
cos
)
( )
)
)
)
)
()
()
b
()
()
R
( )
( )
()
()
R
( )
( )
()
()
R
B
D
A
C
q
c
h
a
p
a/
p
= c/a
b
/
q
= c/
b
a
2
= c
p
b
2
= c
q
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
b
2
= c
(
p+q
)
=
R
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
aa
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
√
(
a
1
-b
1
)
1
1
2
+ (a
2
2
a
-b
2
b
)
2
2
2
+ … + (a
2
n
- b
n
)
n
n
2
=
√
∑
n
(a
∑
i
- b
i
i
)
i
i
2
i=1
c
os
R
D
A
q
c
p