MATLAB: Create a block diagonal matrix with same repeating block

Question

I have a matrix K of dimensions n x n. I want to create a new block diagonal matrix M of dimensions N x N, such that it c

Answer 1

s = 'A,';
s = repmat(s,[1,n2]);
s = ['B=blkdiag(', s(1:end-1),');'];
eval(s);

It can be faster than using kron-eye.