[HN Gopher] A better approach to gravity: how we made EGM2008 fa...
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       A better approach to gravity: how we made EGM2008 faster
        
       Author : sphw
       Score  : 8 points
       Date   : 2024-12-02 21:55 UTC (1 hours ago)
        
 (HTM) web link (www.elodin.systems)
 (TXT) w3m dump (www.elodin.systems)
        
       | perihelions wrote:
       | Do I understand right, that it's summing ~2 million spherical
       | harmonic terms, and the optimization part is that that's
       | accomplished in ~200 ms? Does this force field feed into
       | something like a Runge-Kutta solver for predicting orbits? (I
       | don't know much about orbital mechanics).
        
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       (page generated 2024-12-02 23:00 UTC)