function der_temperature_psxi extends TILMedia.BaseClasses.PartialGasObjectFunction; input SI.AbsolutePressure p "Pressure"; input SI.SpecificEntropy s "Specific entropy"; input SI.MassFraction xi[:] "Mass fraction"; input TILMedia.Internals.TILMediaExternalObject gasPointer; input Real der_p "Pressure"; input Real der_s "Specific entropy"; input Real der_xi[:] "Mass fraction"; output Real der_T "Temperature"; end der_temperature_psxi;