准确求特征值和特征向量归一化Matlab程序.doc

求特征值 A=3 -1 -2;2 0 -2;2 -1 -1A =3 -1 -22 0 -22 -1 -1 V,D=eig(A)V =0.7276 -0.5774 0.62300.4851 -0.5774 -0.24170.4851 -0.5774 0.7439D =1.0000 0 00 0.0000 00 0 1.0000D 为特征值，V 为每个特征值对应的特征向量特征向量归一化V =0.86850.47790.1315 S=V/sum(V)S =0.58770.32340.0890