# Example 2, Page 238
A = matrix([[1/2,1/2], [1/2,1/2]])
lambda1 = A.eigenvalues()[0]
lambda2 = A.eigenvalues()[1]
x1 = A.eigenmatrix_left()[1][0]
x2 = A.eigenmatrix_left()[1][1]
print lambda1, x1
print lambda2, x2