Given two lag operator polynomials A(L) and B(L),
a polynomial addition C(L) = A(L) + B(L)with
is the nonnegative scalar tolerance used to determine which coefficients
are included in the result. The default tolerance is
Specifying a tolerance greater than
0 allows the
user to exclude polynomial lags with near-zero coefficients. A coefficient
matrix of a given lag is excluded only if the magnitudes of all elements
of the matrix are less than or equal to the specified tolerance.
a polynomial addition.
If at least one of
a lag operator polynomial object, the other can be a cell array of matrices
(initial lag operator coefficients), or a single matrix (zero-degree
The addition operator (+) invokes plus, but the optional coefficient
available only by calling