%
% Example 1 from Sec 5.2
%
A = [2 3; 3 -6]
eig(A)
[X,D] = eig(A)

%
% Example 3 from Sec 5.2
%
A = [5 -2 6 -1; 0 3 -8 0; 0 0 5 4; 0 0 0 1]
eig(A)
