The quadratic coefficient, a 2 , and

Status. The construction of $\mathsf{D}$ from ${\dot{a}}_2$: identified II2. The value of $\mathsf{D}$: open; the one sentence to locate is XIV-H's input:EC quoting (eq:a2). The symbol ${\dot{a}}_2$ in the integrand of the patch's discussion is replaced by the displayed defining relation (eq:Dfrom); this is (G2).