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Why do my satellites fall out of orbit?

Start with fewer bodies, can you simulate two masses with a spring or an earth/moon system? Track the total kinetic energy and potential energy of the system to verify that your integrator is (...
MPIchael's user avatar
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c++ software packages to solve linear systems subject to constraints

deal.II has a tutorial showing how to solve the obstacle problem, which has one-sided bounds constraints, using an active set approach. PETSc also has a variational inequality solver SNESVINEWTONRSLS ...
Daniel Shapero's user avatar

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