facF15b := [Complex(-.786655931291565302,-0.)*z+Complex(.523647303436801992,0.
)*z^2+Complex(.314777494632943084e-3,0.)*x*y^2+Complex(.234478769196507203e-3,
0.)*x^2*z+Complex(-.743101180575671115e-4,0.)*y^3+Complex(-.305113610570052984
,0.)*y+Complex(-1.57140246818715656,0.)*x*z+Complex(.252680671489067123e-3,0.)
*y^2*z+Complex(.523765736370067625,0.)*x*y+Complex(-.623242834003641621e-5,0.)
*x*y*z+Complex(.182788053450062491e-3,0.)*x*z^2+Complex(.383098336614362426e-3
,0.)*x^2-Complex(.158955051745113768e-3,0.)*x^2*y+Complex(.135898811891616810e\
-3,0.)*z^3+Complex(-.196701433025955656e-4,0.)*y*z^2+Complex(.5239800254884827\
70,0.)*x^3+Complex(.523998464046419920,0.)*y*z-Complex(.654919730887487340,0.)
*x+Complex(.792734354625165892e-4,0.)*y^2+Complex(.52332568633961,0.), 
Complex(.414636694655743044,0.)*z^2-Complex(.643368338396500448e-3,0.)*y*z+
Complex(.414265307046627063,0.)*y^2+Complex(-.141832652730429515e-3,0.)*x*z+
Complex(.136177261035298462e-3,0.)*x*y+Complex(1.24389033057428722,0.)*x^2+
Complex(-.206906758382997852,0.)*z+Complex(-.414947932182331502,0.)*y-Complex(
.830595826685447958,0.)*x+Complex(-.41476087664847,-0.)];
t15b := 7.421;
berror15b := .68935762042362e-3;