Hi,
I'm afraid the decomposition object does not provide access to the factors of the decomposition. This is because, depending on the input matrix L, a different decomposition is used (LU decomposition, QR decomposition, Cholesky decomposition, ...). These decompositions use different numbers and types of matrices (P*L*U, Q*R*P, R'*R, ...), and can be represented in different ways (e.g., P can be a permutation matrix or a permutation vector).
Because of this, the decomposition object only supports linear system solving with the original matrix. To access the factors of the decomposition, call the specific decomposition function (LU, QR, CHOL, ...), based on the type of the decomposition that was returned.
