A(1,1)=2.2
A(1,2)=6.6
A(1,3)=7.7
A(2,1)=6.4
A(2,2)=6.5
A(2,3)=3.6
A(3,1)=9.3
A(3,2)=7.6
A(3,3)=2.6

AA(1,1)=2.2
AA(1,2)=6.6
AA(1,3)=7.7
AA(2,1)=6.6
AA(2,2)=6.5
AA(2,3)=3.6
AA(3,1)=7.7
AA(3,2)=3.6
AA(3,3)=2.6


lamda1 = eig(A)

lamda2= eig (AA)

[X2,lamda2] = eig(A)

[X1,lamda1] = eig(AA)