kappa - R simplifies to: 0
N=4 (lam = a^2 b^2/(a^2+b^2)): 2
N=6 (lam = a^2 b^2/(a+b)^2): -(a - 2*b)*(a + b)**2/(b**2*(2*a + b))
a=1.6 b=1.0 N= 3: R = 15.5089057112847649508085 ; max|kappa_geom - R| = 2.91e-48
a=1.6 b=1.0 N= 4: R = 2.0 ; max|kappa_geom - R| = 8.02e-51
a=1.6 b=1.0 N= 5: R = 0.959078572541470303493739 ; max|kappa_geom - R| = 1.2e-50
a=1.6 b=1.0 N= 6: R = 0.6438095238095238095238095 ; max|kappa_geom - R| = 2.67e-51
a=1.6 b=1.0 N= 7: R = 0.5005990548144856177961943 ; max|kappa_geom - R| = 4.01e-51
a=1.6 b=1.0 N= 8: R = 0.4216048404567681481779028 ; max|kappa_geom - R| = 2.67e-51
a=1.6 b=1.0 N= 9: R = 0.3727544853099319593065906 ; max|kappa_geom - R| = 6.68e-52
a=1.6 b=1.0 N=10: R = 0.3401709219346239101938022 ; max|kappa_geom - R| = 2.67e-51
a=2.0 b=1.0 N= 3: R = 35.02775637731994646559611 ; max|kappa_geom - R| = 2.7e-47
a=2.0 b=1.0 N= 4: R = 2.0 ; max|kappa_geom - R| = 8.02e-51
a=2.0 b=1.0 N= 5: R = 0.4162986272329500404210134 ; max|kappa_geom - R| = 2.0e-51
a=2.0 b=1.0 N= 6: R = 0.0 ; max|kappa_geom - R| = 3.9e-51
a=2.0 b=1.0 N= 7: R = -0.1771943301253541489603447 ; max|kappa_geom - R| = 6.68e-51
a=2.0 b=1.0 N= 8: R = -0.2714636234592769274047629 ; max|kappa_geom - R| = 2.0e-51
a=2.0 b=1.0 N= 9: R = -0.3284664944098390492977496 ; max|kappa_geom - R| = 4.68e-51
a=2.0 b=1.0 N=10: R = -0.365922242006808960386107 ; max|kappa_geom - R| = 6.01e-51
a=1.0 b=0.35 N= 3: R = 138.3064131052169858305433 ; max|kappa_geom - R| = 1.19e-45
a=1.0 b=0.35 N= 4: R = 2.0 ; max|kappa_geom - R| = 2.67e-50
a=1.0 b=0.35 N= 5: R = -1.220416387826717129527482 ; max|kappa_geom - R| = 3.47e-50
a=1.0 b=0.35 N= 6: R = -1.899261832392531480677377 ; max|kappa_geom - R| = 1.6e-50
a=1.0 b=0.35 N= 7: R = -2.1596344787304341919689 ; max|kappa_geom - R| = 5.35e-51
a=1.0 b=0.35 N= 8: R = -2.290264095835396554527352 ; max|kappa_geom - R| = 1.07e-50
a=1.0 b=0.35 N= 9: R = -2.366408081220097631773117 ; max|kappa_geom - R| = 1.07e-50
a=1.0 b=0.35 N=10: R = -2.415224642636489653135259 ; max|kappa_geom - R| = 1.6e-50
