How to get a square matrix out of a augmented matrix?

Say there is a input square matrix: A

And we create a identity matrix of the same order as A and name it B

Then we create a augmented matrix Ag = [A, B]

now I perform some operation on the Ag matrix and now I want to print the changed B matrix within the Ag matrix. How can I do that?

Answer 1

[KSSV]

n = 5 ; 
A = rand(n) ;  % square matrix
B = eye(size(A)) ;  % Identity matrix
Ag = [A B] ;   % augemented matrix 

[Shankhadeep Saha]

Now I peform some operations on Ag and after that I want to extract the changed B matrix only. How do I do that?

[KSSV]

You can extract that part using:

BChange = Ag(:,n+1:end)

[Shankhadeep Saha]

It worked! Thanks a lot!! :)

[KSSV]

Thanks is acepting/ voting the answer. :)