Errors of two different representations of the dissipated solution specified by Eqs. (18)–(20). In the case of the upper panel, our representation procedure is terminated with a 37-term representation, because this representation reaches the precision requirement δ_r = 10⁻⁵. In the case of the lower panel, with slightly larger error in the frequency approximation, the representation is about 4 orders less precise, though the number of representation terms is increased to 150.