The cross product summation index notation with permutations

Subscribe for More Lessons: https://YouTube.com/WeSolveThem Tip for Good Service: https://PayPal.me/WeSolveThem Thousands of free solutions: https://WeSolveThem.com This is a video lesson to show another way to set up the cross product for index notation. It is just for practice, and has no practical use for our tensor calculus (for now at least).