indicator = isEqLagOp(A,B) determines
if two lag operator polynomials A and B are
the same. indicator is a boolean indicator
for the equality test. TRUE indicates the two polynomials
are identical to within tolerance; FALSE indicates
the two polynomials are not identical to within tolerance.

indicator = isEqLagOp(A,B,'Tolerance',tolerance)

If at least one of A or B is
a lag operator polynomial object, the other can be a cell array of
matrices (initial lag operator coefficients), or a single matrix (zero-degree
lag operator).

Input Arguments

A

Lag operator polynomial object, as created by LagOp,
against which the equality of B is tested.

B

Lag operator polynomial object, as created by LagOp,
against which the equality of A is tested.

Name-Value Pair Arguments

Specify optional comma-separated pairs of Name,Value arguments.
Name is the argument
name and Value is the corresponding
value. Name must appear
inside single quotes (' ').
You can specify several name and value pair
arguments in any order as Name1,Value1,...,NameN,ValueN.

'Tolerance'

Nonnegative scalar tolerance used for testing equality. The
default is 1e-12. Specifying a tolerance greater
than the default relaxes the comparison criterion. Two polynomials
are deemed sufficiently close to indicate equality if the differences
in magnitude of all elements of all coefficient matrices at all lags
are less than or equal to the specified tolerance.

Default: 1e-12

Output Arguments

indicator

Boolean indicator for the equality test. true indicates
the two polynomials are identical to within tolerance; false indicates
the two polynomials are not identical to within tolerance.