matlab求特征方程
时间: 2023-11-20 20:53:42 浏览: 80
特征方程是一个矩阵的特征值满足的方程,可以使用MATLAB中的eig函数来求解。假设A是一个n阶方阵,则其特征方程为|A-λI|=0,其中I是n阶单位矩阵,λ是特征值。可以使用eig函数来求解特征值和特征向量,例如:
```
A = [1 2 3; 4 5 6; 7 8 9];
[V,D] = eig(A);
```
其中V是特征向量矩阵,D是特征值矩阵。特征向量矩阵的每一列对应一个特征向量,特征值矩阵的对角线上的元素对应着特征值。
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