function criticalSurfaceTension_xi extends TILMedia.BaseClasses.PartialVLEFluidFunction; input SI.MassFraction[:] xi "Mass fractions of the first nc-1 components"; input TILMedia.Internals.VLEFluidName vleFluidName "VLEFluid name"; input Integer nc "Number of components"; output SI.SurfaceTension sigmac "Critical surface tension"; end criticalSurfaceTension_xi;