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giulioforesto / planets

A 2D plotted planets movement simulator
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Choreography action computation and G. Minton's thesis #35

Open gabrielfougeron opened 9 years ago

gabrielfougeron commented 9 years ago

Comparing our procedure and G. Minton's showed :

[] That my computation of the action could be reduced by a factor of n (the number of bodies in the simulation), using the translationnal symmetry property. The analysis should be repeated with several cycles. [] That using FFTs might help somewhere .... but I still do not know where.

gabrielfougeron commented 9 years ago

The FFT part goes like this : The gradient of the action is actually the FFT of another function (related to the force). see 4.4 in G Minton's thesis