Here's a fantastic article explaining scalars, matrices and tensors: http://www.grc.nasa.gov/WWW/k-12/Numbers/Math/documents/Tensors_TM2002211716.pdf http://www

Here's a fantastic article explaining scalars, matrices and tensors: http://www.grc.nasa.gov/WWW/k-12/Numbers/Math/documents/Tensors_TM2002211716.pdf http://www.grc.nasa.gov/WWW/k-12/Numbers/Math/documents/Tens... Explanation of why dot and cross products are defined that way: http://physics.stackexchange.com/questions/14082/what-is-the-physical-significance-of-dot-cross-product-of-vectors-why-is-divi http://physics.stackexchange.com/questions/14082/what-is-the...