NewtonDerivatives_ps

record NewtonDerivatives_ps "Derivatives for fast inverse calculation of Helmholtz functions: p & s"
    extends Modelica.Icons.Record;

    SI.Pressure p "Pressure";
    SI.SpecificEntropy s "Specific entropy";
    DerPressureByDensity pd "Derivative of pressure w.r.t. density";
    DerPressureByTemperature pt "Derivative of pressure w.r.t. temperature";
    Real sd "Derivative of specific entropy w.r.t. density";
    Real st "Derivative of specific entropy w.r.t. temperature";
end NewtonDerivatives_ps;