矩阵转置运算

矩阵转置的运算规律:
(1) \((A+B)^T\) = \(A^T+B^T\)
(2) \((\lambda A)^T\) = \(\lambda A^T\)
(3) \((AB)^T\) = \(B^TA^T\)
(4) \((A^T)^T\) = \(A\)