Improved numerical plotting of elliptical orbits using radial action coordinates -- has the symmetry of Leibniz radial theory based on inertia versus gravity been ignored?

Ivan R. Kennedy, Michael T. Rose, Angus N. Crossan

We that show two body gravitational orbits may be plotted using a radial reference frame rather than the customary Newtonian rectilinear inertial frame. Infinitesimal calculus cofo…