Me ajudem por favor conferir se está correto minha resposta

Polinômio Característico: [  1.   3.  -3. -11.  -6.]
Autovalores: [ 2. -3. -1. -1.]

Autovetores:
Autovalor 2.000000000000001:
[ 0.5 -0.5 -0.5  0.5]
Autovalor -3.000000000000001:
[-3.01511345e-01 -9.04534034e-01  1.35122215e-16  3.01511345e-01]
Autovalor -1.0000000000000002:
[ 0.66679943  0.73119426  0.06439483 -0.12878967]
Autovalor -0.9999999999999981:
[-0.15795739  0.26717066  0.42512805 -0.8502561 ]
Rank dos Autovetores: 4

A matriz A é diagonalizável? True

Base Ortonormal:
[[ 0.5        -0.59160798  0.57338806  0.26688224]
 [-0.5        -0.76063883 -0.1739157  -0.3757418 ]
 [-0.5         0.25354628  0.79894472 -0.21771912]
 [ 0.5         0.08451543  0.05164096 -0.86034316]]

Matriz P:
[[ 5.00000000e-01 -3.01511345e-01  6.66799429e-01 -1.57957386e-01]
 [-5.00000000e-01 -9.04534034e-01  7.31194262e-01  2.67170665e-01]
 [-5.00000000e-01  1.35122215e-16  6.43948330e-02  4.25128051e-01]
 [ 5.00000000e-01  3.01511345e-01 -1.28789666e-01 -8.50256103e-01]]

Matriz P^{-1}:
[[ 0.66666667 -0.66666667 -2.         -1.33333333]
 [ 1.1055416  -1.1055416   3.31662479  1.1055416 ]
 [ 1.62705857 -0.17930543  2.89550629  1.08914229]
 [ 0.53762429 -0.7569178  -0.43858702 -1.73312911]]

Matriz P^{-1}AP:
[[ 2.00000000e+00 -1.03397092e-16  5.36046812e-16 -8.66011870e-16]
 [-4.51119692e-15 -3.00000000e+00  6.04492230e-16  5.72604554e-16]
 [-2.57330652e-15  1.36384794e-15 -1.00000000e+00 -6.62027823e-16]
 [ 9.39943481e-16  5.23653002e-16  2.55075535e-17 -1.00000000e+00]]