MATLAB: How to assign matrix value to a symbolic variable inside a matrix

cell arraysmatrixmatrix array

The error is in the line in %…I got that the error is coming because of the unmatched dimension of left hand side and right hand side of that line. I want to assign the first element of the matrix A, a matrix value again . How can I possibly do that?
c = input('c ');
g = input('g ');
st = input('st ');
syms Lambda_n C_nrt a_r
M = cell(c+1,1);
a_t = min([1:c+1;repmat(c-g+1,1,c+1)]);
for i = 1:c+1
    if i <= c-g
    MCell = repmat({zeros(c+2-i)}, 1, a_t(i));
    else
      
       ACell = zeros(c+2-i,c+2-i, 'sym');
       if st==1 
        A(1,1) = Lambda_n;
       else
           A(1,1) = kron(C_nrt,eye(st)); %error line
       end
   MCell = repmat({A}, 1, a_t(i))
        
    end
    M{i} = blkdiag(MCell{:});
    
end
B=blkdiag(M{:})

Best Answer

A numeric array in MATLAB can only hold a single element. You need to use a cell array. Change the line to
A{1,1} = kron(C_nrt,eye(st));
You will need to adapt the code accordingly.
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