Question

The nature of the eigen matrix displayed in MATLAB is ___________

(a) Unsorted

(b) Sorted

(c) Sorted in Ascending order

(d) Sorted in Descending order

I got this question in quiz.

My question is based upon Linear Systems in portion Beyond the Basics of MATLAB

Answer 1

Right option is (a) Unsorted

To elaborate: The eig(a,’matrix’) command will return the eigen values of the matrix ‘a’ in a matrix form. But, it will give it in an unsorted manner- the elements will be placed on the principal diagonal. To sort them, we need to use the sort command- this will sort the columns in ascending order.