Thomas' Labs

Cross Product

Disclaimer

This site as of now just a technology demonstration and its claims should not be taken as true (even though I myself am pretty confident they are)

Definition

We shall define the cross product in terms of two properties we are interested in:

  • Distributive: vectors_9f9fba6f5f057e2bbba0b03c80ae5328eb4471b0.svg
  • Orthogonal: vectors_5a092724d896c9d302fae71d03fcf210e20cf0c8.svg

It is worth mentioning that given a pair of vectors in vectors_8b013bca1828fb8548227df2f3984bc248c5bcef.svg there exist an infinite amount of vectors that satisfy these properties, so it is also necessary to introduce the following relations between the basis vectors to properly define the cross product.

vectors_400ac34a5a3da88a1352d2454e30a7192e9e38d9.svg

We introduce the Levi-Civita symbol to condense our calculations.

vectors_1f0bfa5c124a2d85deba25f182438bbfa846e46f.svg

Based on this we may now derive a way to compute the cross product of two vectors

vectors_c6350d03d14fcb0f052dc541c6216fc478719801.svg

Properties

vectors_31929f3b7ce628bcc2a3b4391681e9e3a7fe4c20.svg