But wait â reconsider: âinvariant under $90^\circ$ rotationâ means $ R\mathbfv = \mathbfv $, which we solved gives $ x = -y $ and $ x = y \Rightarrow x = 0, y = 0 $. So only trivial fixed vector. - AMAZONAWS

📅 March 6, 2026 👤 scraface

Mar 06, 2026

$But wait â reconsider: âinvariant under $90^\circ$ rotationâ means $ R\mathbf{v} = \mathbf{v} $, which we solved gives $ x = -y $ and $ x = y \Rightarrow x = 0, y = 0 $. So only trivial fixed vector.$

📚 You May Also Like These Articles