2 ms·

I wonder how he would explain rhombuses with negative area. In uni we defined determinants starting with systems of linear equations and showing that hey, all

I wonder how he would explain rhombuses with negative area. In uni we defined determinants starting with systems of linear equations and showing that hey, all these formulas for solving m-by-n systems can be generalised using this one monstrous equation, that has a simple recursive definition. We'll call it a determinant.

jpdoctor 13y ago
> I wonder how he would explain rhombuses with negative area. The rhombus is in the II or IV quandrant. Alternatively, the endpoint of the vector sum is of the form (-x, y) or (x, -y), where x and y are positive numbers.