Eig(A) - get eigenvalues in order of matrix

1 次查看（过去 30 天）
Neil Sengupta
Neil Sengupta 2017-7-19
回答： Walter Roberson 2017-7-19
I have a matrix that looks like the following:
A = [A 0 E; 0 B D; E 0 C]
I'm using the function eig(A)to get eigenvalues. Is there a way to get the eigenvalues in the order of the matrix? (e.g. have the first eigenvalue for the first row, second eigenvalue for the second row, and third eigenvalue for the third row)?

请先登录，再回答此问题。

回答（1 个）

Walter Roberson
Walter Roberson 2017-7-19
No. Eigenvalues are a global property, not associated with particular rows. For a 3 x 3 matrix, the eigenvalues are 3 roots of a cubic, with two of the solutions being complex conjugates of each other. There is no inherent way to order those, or to associate them with a particular row.

类别

在 Help Center 和 File Exchange 中查找有关 Linear Algebra 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by