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Ch-10-Prob-5-New-박종우
2220 days ago by matrix
A=matrix(4,4,[1,0,1,1,0,1,1,1,1,1,1,0,1,1,0,1]) print A.charpoly().factor() print A.eigenvalues()
(x - 3) * (x + 1) * (x - 1)^2 [3, -1, 1, 1]
(x - 3) * (x + 1) * (x - 1)^2 [3, -1, 1, 1]
E=identity_matrix(4) print (A-E).rank() print (A+E).rank() print (A-3*E).rank()
2 3 3
2 3 3