3 ms·

the outer product is the tensor product of two vectors https://en.wikipedia.org/wiki/Outer_product https://en.wikipedia.org/wiki/Outer_product

• bsaul 13y ago
  Could that be the start of an introduction to tensor products or even tensors in general ? Start with cartesian product ( or maybe even sql joins ? ) and generalize ? It's probably much more intuitive to us developpers than vector products ( unless you're in 3D graphics or physic engine of course )
  • j2kun 13y ago
    I'd read an article like that.
  • mrcactu5 13y ago
    absolutely. I am doing a minitature sql join. other database operations may have similar interpretations in terms of vector spaces. math - when it works - is a layer of abstraction unifying several different-looking experiences.