求特征根和特征向量,我怎么算最大特征根的特征向量都是负的,高人能把过程写给我看看不,1.000000.869250.896810.922121.150421.000001.031711.060831.115060.969261.000001.028221.084450.942660.972551.00000

Question

求特征根和特征向量,我怎么算最大特征根的特征向量都是负的,高人能把过程写给我看看不,
1.00000 0.86925 0.89681 0.92212
1.15042 1.00000 1.03171 1.06083
1.11506 0.96926 1.00000 1.02822
1.08445 0.94266 0.97255 1.00000

Answer 1

>> [v,d]=eig([1.00000 0.86925 0.89681 0.92212;
1.15042 1.00000 1.03171 1.06083;
1.11506 0.96926 1.00000 1.02822;
1.08445 0.94266 0.97255 1.00000])
v =
0.4592 -0.1531 + 0.3688i -0.1531 - 0.3688i 0.4875
0.5282 -0.2406 - 0.0474i -0.2406 + 0.0474i -0.5857
0.5120 0.7399 0.7399 -0.4523
0.4980 -0.3267 - 0.3553i -0.3267 + 0.3553i 0.4633

d =
4.0000 0 0 0
0 0.0000 + 0.0000i 0 0
0 0 0.0000 - 0.0000i 0
0 0 0 -0.0000

>>
最大特征值为4
v 的第1列为对应的特征向量