.HelmholtzMedia.Interfaces.PartialHelmholtzMedium.EoS.d2ud2T

Information

returns internal energy derivative (d2u/dd2)@T=const

Interface

function d2ud2T
  input EoS.HelmholtzDerivs f;
  output Der2EnergyByDensity2 d2ud2T;
end d2ud2T;