Talk:ETP closed form solution

Error in forced conditions derivation
It looks like eq. (3.3h) should be $$h(t) = h_0 + \Delta h \left[ u(t) + \frac{C_M}{H_M} \delta (t) \right]$$. (The square brackets are missing.) As a result there should be $$\Delta h$$ term added to all the remaining equations wherever $$\frac{C_M}{H_M}$$ appears.