This fixes the case where there are variables labeled differential, but no derivative that goes with them. This should be fine. We'll just need to make sure we don't assume that a derivative exists if a differential variable does. This also fixes missed variable bounds for TS solvers, in case somebody wants to use a bounded nonlinear solver.
This fixes the case where there are variables labeled differential, but no derivative that goes with them. This should be fine. We'll just need to make sure we don't assume that a derivative exists if a differential variable does. This also fixes missed variable bounds for TS solvers, in case somebody wants to use a bounded nonlinear solver.