Let: A=[[10,1],[-2,7]]
aA :
The smaller eigenvalue is \lambda _(1)=
with associated eigenvector x_(1)=[].
The larger eigenvalue is \lambda _(2)=
with associated eigenvector x_(2)=
x_(2)=[].
bS, D and S^(-1) such that A=SDS^(-1) and D is a diagonal matrix.