partial function densityDerivativeWRTmassFraction_dTxin extends TILMedia.BaseClasses.PartialVLEFluidObjectFunction; input SI.Density d "Density"; input SI.Temperature T "Temperature"; input SI.MassFraction[:] xi "Mass fractions of the first nc-1 components"; input Integer compNo "Component ID"; input TILMedia.Internals.TILMediaExternalObject vleFluidPointer; output SI.Density drhodxi_ph "Derivative of density wrt mass fraction of water at constant pressure and specific enthalpy"; end densityDerivativeWRTmassFraction_dTxin;