5 ms·

You could have learned them from a very algebraic source, I suppose.

• dboreham 9y ago
  Not sure how that could happen without going through high school math, but I suppose anything is possible.
  • gizmo686 9y ago
    Linear algebra is not offered in most US highschools.
    • dboreham 9y ago
      Matrices and matrix arithmetic, including determinants is covered in "Algebra 2" here in a small town in a flyover state.