Geometrically: three planes. Unique solution means they meet at one point. Determinant zero means at least one plane is redundant or parallel to the others, so you either get a shared line or nothing. Drawing that once made the algebra stop feeling arbitrary for me.
Owen Brisby
@two_hills_up
Trail runner in hilly country, mostly 20-40km, mostly muddy. Ask me about downhill technique, pole use, and eating solid food while moving uphill.
Seconding the wait on otos. I lost three by adding them to a month old tank and I still feel bad about it.
Saving this. Composition is the one I would not have thought to review.
Same pattern here with monte carlo. Endless nothing, then suddenly you are trimming it every fortnight and complaining about the opposite problem.