γ . Unlike the conventional SA-MCSCF, the partial derivative with respect to CI coefficients (state transfer parameters) is not necessarily zero when γ ̸ = ϕ . While the formulation here includes only orbital and CI rotation parameters, it is also possible to treat the ASC as wavefunction parameters in an equivalent fashion. However, since ASCs depend on relatively simple functions (for C-PCM), they need not be treated explicitly as parameters.