wangzi226
2011-03-11, 14:39
我想求一个带符号的矩阵的特征向量，可出现问题了，您看看该如何解决，谢谢
a={{24.5175 - 0.5 ng_hi1^2, 0.31831 - 0.31831 ng_hi1^2,
1.94909*10^-17 - 1.94909*10^-17 ng_hi1^2, -0.106103 +
0.106103 ng_hi1^2}, {0.31831 - 0.31831 ng_hi1^2,
2.2836 - 0.5 ng_hi1^2, 0.31831 - 0.31831 ng_hi1^2,
1.94909*10^-17 - 1.94909*10^-17 ng_hi1^2}, {1.94909*10^-17 -
1.94909*10^-17 ng_hi1^2, 0.31831 - 0.31831 ng_hi1^2,
2.27196 - 0.5 ng_hi1^2,
0.31831 - 0.31831 ng_hi1^2}, {-0.106103 + 0.106103 ng_hi1^2,
1.94909*10^-17 - 1.94909*10^-17 ng_hi1^2,
0.31831 - 0.31831 ng_hi1^2, 24.4825 - 0.5 ng_hi1^2}}
Eigenvectors[a]
结果提示
Eigenvectors::eivec0:Unable to find all eigenvectors
我不知道该怎么弄了，还忘多多帮忙，谢谢
a={{24.5175 - 0.5 ng_hi1^2, 0.31831 - 0.31831 ng_hi1^2,
1.94909*10^-17 - 1.94909*10^-17 ng_hi1^2, -0.106103 +
0.106103 ng_hi1^2}, {0.31831 - 0.31831 ng_hi1^2,
2.2836 - 0.5 ng_hi1^2, 0.31831 - 0.31831 ng_hi1^2,
1.94909*10^-17 - 1.94909*10^-17 ng_hi1^2}, {1.94909*10^-17 -
1.94909*10^-17 ng_hi1^2, 0.31831 - 0.31831 ng_hi1^2,
2.27196 - 0.5 ng_hi1^2,
0.31831 - 0.31831 ng_hi1^2}, {-0.106103 + 0.106103 ng_hi1^2,
1.94909*10^-17 - 1.94909*10^-17 ng_hi1^2,
0.31831 - 0.31831 ng_hi1^2, 24.4825 - 0.5 ng_hi1^2}}
Eigenvectors[a]
结果提示
Eigenvectors::eivec0:Unable to find all eigenvectors
我不知道该怎么弄了，还忘多多帮忙，谢谢