ITC: lim_{K→∞} θ(r=1) = 1; Q_stoich = n·[M]_tot·V·ΔH (model-free endpoint)

Sympy-exact symbolic witness of the ITC stoichiometric-endpoint anchor in the Wiseman tight-binding regime. Setup: θ(r, K, M) = (1/2) · [1 + 1/(K·M) + r - sqrt((1 + 1/(K·M) + r)² - 4r)] as a sympy expression with r, K, M all positive…