I think in multi-variable calculus, moment of inertia is a point in space. angular momentum [torque?] can be represented as a vector i think. I don’t remember - haven’t taken calculus nor physics for a LONG while…

I’m looking for my old books and if I find anything, i’ll let you know. it may be faster to look online.

:yes:

Does anyone have any ideas regarding implementing angular velocity caused by collision. I know that I must use moment of intertia for that (which is a matrix, and i have no idea why it is so. Because we were taught in high school that moment of intertia is just one number).