Lattice vectors Memes

That smug Pepe face when you've found the professor's cryptonite! Rhombohedral lattices are notoriously complex crystal structures with non-orthogonal axes and unequal spacing. Converting these to Cartesian coordinates requires a transformation matrix that would make even seasoned physicists sweat. It's like asking someone to manually compute SHA-256 encryption—technically possible but practically sadistic. The professor thought they were untouchable until you hit them with the crystallographic equivalent of "show your work." Now who's sweating through their tweed jacket?