Abstract
A procedure is developed that, in two iterations, solves the hyperbolic Kepler's equation in a very efficient manner, and to an accuracy that proves to be always better than 10−20 (relative truncation error). Earlier work on the elliptic equation has been extended by the development of a new procedure that solves to a maximum relative error of 10−14.
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Gooding, R.H., Odell, A.W. The hyperbolic Kepler equation (and the elliptic equation revisited). Celestial Mechanics 44, 267–282 (1988). https://doi.org/10.1007/BF01235540
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DOI: https://doi.org/10.1007/BF01235540