NewtonDerivatives_ph

record NewtonDerivatives_ph "Derivatives for fast inverse calculations of Helmholtz functions: p & h"
    extends Modelica.Icons.Record;

    SI.Pressure p "Pressure";
    SI.SpecificEnthalpy h "Specific enthalpy";
    DerPressureByDensity pd "Derivative of pressure w.r.t. density";
    DerPressureByTemperature pt "Derivative of pressure w.r.t. temperature";
    Real hd "Derivative of specific enthalpy w.r.t. density";
    Real ht "Derivative of specific enthalpy w.r.t. temperature";
end NewtonDerivatives_ph;