Abstract
We present an explicit form for the central force that describes the orbit of some roulette curve, and interpret the orbit of the roulette curve as an algebraic curve F(1, x, y) = 0 associated to the homogeneous polynomial F(t, x, y) of a matrix A. The hodograph of the orbit is obtained as the boundary generating curve of the numerical range of A.
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Chien, MT., Nakazato, H. Numerical Range for Orbits Under a Central Force. Math Phys Anal Geom 13, 315–330 (2010). https://doi.org/10.1007/s11040-010-9082-y
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DOI: https://doi.org/10.1007/s11040-010-9082-y