facNa02 := [5.2679089237238-.74276208585887*u+.10137037876191e-1*x-.\
27661699236590e-2*u^2-.39881108901718e-2*u*x-.15481015465780e-1*x^2-.\
31388321662194e-3*u^3+.75495813433307*u^2*x-.65699405980978e-2*x^2*u+.76041072\
749872*x^3, -1.3288471665658+2.6600829396392*u+.40125340486119e-1*x-.\
49260209215779e-2*u^2+1.3282165568239*u*x+1.3248666828414*x^2];
t1n := 6.843;
berror1 := .10246453072353e-2;