3
3
.
.
3
3
A
A
d
d
v
v
a
a
n
n
c
c
e
e
d
d
V
V
i
i
e
e
w
w
O
O
p
p
e
e
r
r
a
a
t
t
i
i
o
o
n
n
s
s
I
I
n
n
f
f
o
o
Following chapters explain how to perform advanced operations with the Views.