MGFexponential          Evaluate the moment generating function (MGF)
                        of the exponential distribution or a derivative
                        of the MGF
MGFgamma                Evaluate the moment generating function (MGF)
                        of the gamma distribution or a derivative of
                        the MGF
MGFmixedgamma           Evaluate the moment generating function (MGF)
                        of the mixed gamma distribution or a derivative
                        of the MGF
equilib                 Calculate the equilibrium of a linear facility
                        model
facilityR0              Calculate basic reproduction number R0
facilityeq              Calculate the equilibrium of a facility
                        transmission model
meanlengthofstay        Calculate the mean length of stay for a linear
                        facility model
