dyn_solve               Solving ordinary differntial equations (ODEs)
                        on a specified time squence.
dynemu_GP               Fit Gaussian process (GP) emulators for
                        One-step-ahead approach
dynemu_exact            Predictive posterior computation via exact
                        closed-form expression for one-steap-ahead
                        Gaussian process (GP) emulators
dynemu_mc               Predictive posterior computation via Monte
                        Carlo (MC) approximation for one-steap-ahead
                        Gaussian process (GP) emulators
dynemu_pred             Predictive posterior computation for dynamic
                        systems using one-steap-ahead approach by
                        Gaussian process (GP) emulators
