- #26

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i x j does not equal j x i BECAUSE you are multiplying directions (vectors) in respect to each other.

**Think of multiplying the front edge of your desk (i) by the side (j). The answer we call k will point downwards through the top of your desk, hence -k.**

If we switcheroo and multiply the side (j) by front (i), by mathematical convention, k will point upwards.

If we switcheroo and multiply the side (j) by front (i), by mathematical convention, k will point upwards.

Stare at this: https://upload.wikimedia.org/wikipe...vector.svg/484px-Cross_product_vector.svg.png