Akm = {{1, 0, A(1,0)} , 
       {3, 0, A(3,0)} , 
       {5, 0, A(5,0)} , 
       {5,-5, (-1)*(A(5,5)) + (I)*(B(5,5))} , 
       {5, 5, A(5,5) + (I)*(B(5,5))} }