.TILMedia.BaseClasses.PartialGasObjectFunctions.densityDerivativeWRTspecificEnthalpy_psxi .TILMedia.BaseClasses.PartialGasObjectFunctions.densityDerivativeWRTspecificEnthalpy_psxipartial function densityDerivativeWRTspecificEnthalpy_psxi = TILMedia.BaseClasses.PartialGasObjectFunctionPrototypes.densityDerivativeWRTspecificEnthalpy_psxi;