r
e
a
l
p
a
r
t
o
f
e
i
g
e
n
v
a
l
u
e
s
v
s
.
D
a
β
2
.
4
B
2
0
x
1
0
0
.
9
x
2
0
7
D
a
m
0
.
0
3
4