Just as SumFunctional implements the sum of several independent functionals, this new class SumFunctionalConstrainedLinearization implements the sum of linearizations (or, equivalently, the linearization of the sum).
Just as SumFunctional implements the sum of several independent functionals, this new class SumFunctionalConstrainedLinearization implements the sum of linearizations (or, equivalently, the linearization of the sum).