function rho_props_ph extends Modelica.Icons.Function; input Modelica.SIunits.Pressure p "Pressure"; input Modelica.SIunits.SpecificEnthalpy h "Specific enthalpy"; input Common.InverseDerivatives_rhoT derivs "Record for the calculation of rho_ph_der"; output Modelica.SIunits.Density d "Density"; end rho_props_ph;