Return temperature as a function of pressure p, specific entropy s and composition X
function T_psX input Modelica.SIunits.AbsolutePressure p "Pressure"; input Modelica.SIunits.SpecificEntropy s "Specific entropy"; input Modelica.SIunits.MassFraction[:] X "Mass fractions of composition"; output Modelica.SIunits.Temperature T "Temperature"; end T_psX;