 Complex inclination (source code)

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= Complex inclination
{title2=$y=I e^{i\Omega}$}

Complex inclination packages small <orbital inclination> $I$ and <longitude of ascending node> $\Omega$. It differs from <complex eccentricity>. Linear <Laplace-Lagrange secular theory> gives $\dot{\mathbf y}=iB\mathbf y$, whose <matrix exponential> solution decomposes into nodal <secular eigenmodes>.

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