(A) ang.mom = 2.0 | H_red - E_nbody = -4.440892098500626e-16
(A) |d/dt reduced (N-body) - Hamilton eqs| = 1.41395212205353e-09
(B) grad at eq max|.| = 0.0
    spectrum: [ 0.      -1.629899j  0.      -1.j       -1.748305+0.j
  1.748305+0.j        0.      +1.j        0.      +1.629899j]  nu,kappa = 1.7483052855314314 1.6298991905688953
    {xi,eta} = (1+2.5592342123694536e-18j)  | check H2 -> nu*xi*eta: True (1.7483052855314312-3.609780303739472e-18j)
(C) smallest |m.lambda| over cubic monomials = 0.3701008094311049
    quartic direct coeff of xi^2 eta^2 = (-1.5476229975654219+6.390850683183461e-18j)
    Lie correction 1/2{H3,chi3}        = (-1.2254714906642112+0j)
    a = (-2.773094488229633+6.390850683183461e-18j)    [file: -2.7730944882]
    sigma* = 0.5504894700507981  c1 = 2 sigma* a = (-3.0531186304526394+7.036192011518889e-18j)    [file: -3.0531186305]

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