def LiqEtlp_pT(P,T,x_N2):
	x = (P-5.60778537e+02)/2.47804900e-01
	y = (T--1.75406333e+02)/8.02400667e-02
	z = (x_N2-7.60655126e-01)/1.14637409e-02
	output = \
	    1*-8.87631520e+02
	liq_etlp = output*1.00000000e+00+0.00000000e+00
	return liq_etlp