Hello,
I am new to Mathematica and I failed at finding a way to tell Mathematica that the entries in a matrix is also matrices and I would like to ask for help doing this. As example
M ={{A, B},{C, D}};
but A,B,C and D are also 2 by 2 matrices and hence do not commute. I need to find the eigenvalues of the matrix but treating A,B,C,D as matrices and not numbers.
Thanks in advance.
