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import numpy as np A = np.array([[3,-1],[-1,3]]) print('打印A:\n{}'.format(A)) a, b = np.linalg.eig(A) print('打印特征值a:\n{}'.format(a)) print('打印特征向量b:\n{}'.format(b))
打印A: [[ 3 -1] [-1 3]] 打印特征值a: [4. 2.] 打印特征向量b: [[ 0.70710678 0.70710678] [-0.70710678 0.70710678]]
import numpy as np A = np.array([[-1,1,0],[-4,3,0],[1,0,2]]) print('打印A:\n{}'.format(A)) a, b = np.linalg.eig(A) print('打印特征值a:\n{}'.format(a)) print('打印特征向量b:\n{}'.format(b))
打印A: [[-1 1 0] [-4 3 0] [ 1 0 2]] 打印特征值a: [2. 1. 1.] 打印特征向量b: [[ 0. 0.40824829 0.40824829] [ 0. 0.81649658 0.81649658] [ 1. -0.40824829 -0.40824829]]
import numpy as np A = np.array([[-2,1,1],[0,2,0],[-4,1,3]]) print('打印A:\n{}'.format(A)) a, b = np.linalg.eig(A) print('打印特征值a:\n{}'.format(a)) print('打印特征向量b:\n{}'.format(b))
打印A: [[-2 1 1] [ 0 2 0] [-4 1 3]] 打印特征值a: [-1. 2. 2.] 打印特征向量b: [[-0.70710678 -0.24253563 0.30151134] [ 0. 0. 0.90453403] [-0.70710678 -0.9701425 0.30151134]]
import numpy as np A = np.array([[1,2,2],[2,1,2],[2,2,1]]) print('打印A:\n{}'.format(A)) a, b = np.linalg.eig(A) print('打印特征值a:\n{}'.format(a)) print('打印特征向量b:\n{}'.format(b))
打印A: [[1 2 2] [2 1 2] [2 2 1]] 打印特征值a: [-1. 5. -1.] 打印特征向量b: [[-0.81649658 0.57735027 0. ] [ 0.40824829 0.57735027 -0.70710678] [ 0.40824829 0.57735027 0.70710678]]
import numpy as np A = np.array([[2,-3,1],[1,-2,1],[1,-3,2]]) print('打印A:\n{}'.format(A)) a, b = np.linalg.eig(A) print('打印特征值a:\n{}'.format(a)) print('打印特征向量b:\n{}'.format(b))
打印A: [[ 2 -3 1] [ 1 -2 1] [ 1 -3 2]] 打印特征值a: [2.09037533e-15+0.00000000e+00j 1.00000000e+00+5.87474805e-16j 1.00000000e+00-5.87474805e-16j] 打印特征向量b: [[0.57735027+0.j 0.84946664+0.j 0.84946664-0.j ] [0.57735027+0.j 0.34188085-0.11423045j 0.34188085+0.11423045j] [0.57735027+0.j 0.17617591-0.34269135j 0.17617591+0.34269135j]]
import numpy as np A = np.array([[2,-1,2],[5,-3,3],[-1,0,-2]]) print('打印A:\n{}'.format(A)) a, b = np.linalg.eig(A) print('打印特征值a:\n{}'.format(a)) print('打印特征向量b:\n{}'.format(b))
打印A: [[ 2 -1 2] [ 5 -3 3] [-1 0 -2]] 打印特征值a: [-0.99998465+0.00000000e+00j -1.00000768+1.32949166e-05j -1.00000768-1.32949166e-05j] 打印特征向量b: [[ 0.57735027+0.00000000e+00j 0.57735027+7.67588259e-06j 0.57735027-7.67588259e-06j] [ 0.57735913+0.00000000e+00j 0.57734584+1.53518830e-05j 0.57734584-1.53518830e-05j] [-0.57734141+0.00000000e+00j -0.5773547 +0.00000000e+00j -0.5773547 -0.00000000e+00j]]
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