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matrix inside matrix when multiplying symbolic matrices

The problem seems to be the K = C2^(16/57). Taking the root of a matrix is not trivial and solutions don't always exist. That's why MATLAB cannot resolve this expression. Try for example:

A = syms('A',[3,3]);    % create 3x3
symbolic matrix
B = A^(1/3);            % calculate the 3rd root
of A

The result will be

ans = matrix([[a1_1, a1_2, a1_3],
[a2_1, a2_2, a2_3], [a3_1, a3_2, a3_3]])^(1/3)

The same happens in your case. If you look closely, you will see that the matrix expression in S(1,1) is of the form matrix(...)^(32/57)

Categories : Matlab

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