For vectors we can use Inertia tensor. But if I want to use bivectors (Rotors), what should I use for the inertia tensor? I want to make a 2d game and progressively to 4d.

  • $\begingroup$ My response to a question here( physics.stackexchange.com/a/704043/99319 ) might help, but doesn't answer your question. What you need is an equation for $\dot{\widetilde{A}}$ which uses $\widetilde{L}$, $\widetilde{A}$, and the moment of inertia tensor's equivalent in the body frame. $\endgroup$
    – Laff70
    Apr 18, 2022 at 17:57
  • 1
    $\begingroup$ Not really an answer, but Section 3.4 of Doran & Lasenby's Geometric Algebra for Physicists text covers this topic. $\endgroup$
    – Kyle Kanos
    Apr 18, 2022 at 22:27


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