1
عمومی::
بالا مثلثی
lower and adjoint upper triangular system from the manuscript of A.
, ek} C Km, one can characterize such matrices more abstractly: U G Kmxm is an upper triangular matrix if and only if12
Lower triangular matrices are the adjoints of upper triangular matrices.
For an invertible upper triangular matrix, it holds that UVk C Vk and due to dimensional reasons even that UVk = Vk.
Therefore, U-1Vk = Vk (k = 1 : m) and U-1 is upper triangular as well.
واژگان شبکه مترجمین ایران