MATLAB: Cell Array and Matrix polynimial

cell arraysmatricesmatrix arraymatrix manipulation

How do I subtract matrix polynomials? I want to subtract D which is a cell array from Y a matrix polynomial
syms s
X=[1 2 3 4; 5 6 7 8];
Y=(s-2)*X;
D = {[1 2 ] , [1 3] ; [1 6] , [5 2]  };
M=Y-D
Currently i'm getting error for this code saying 'Error using mupadmex Cell input must have string contents.'

Best Answer

 syms s
X=[1 2 3 4; 5 6 7 8];
Y=(s-2)*X;
D = {[1 2 ] , [1 3] ; [1 6] , [5 2]  };
M=Y-cell2mat(D)
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