rho/rho1 a/d 1 0.1 1 0.2 1.01844 0.3 1.03723 0.4 1.09568 0.5 1.15742 0.6 1.22265 0.7 1.30103 0.8 1.3997 0.9 1.50584 1 2 1.38448 3 2.15963 4 2.83217 5 3.60828 6 4.40192 7 5.12361 8 5.94211