1.8: Projection Matrices - Mathematics LibreTexts
https://math.libretexts.org/Bookshelves/Differential_Equations/Applied_Linear_Algebra_and_Differential_Equations_(Chasnov)/02%3A_II._Linear_Algebra/01%3A_Matrices/1.08%3A_Projection_Matrices
WebMay 30, 2022 · 1.8: Projection Matrices. The two-by-two projection matrix projects a vector onto a specified vector in the x x - y y plane. Let u u be a unit vector in R2 R 2. The projection of an arbitrary vector x = x1,x2 x = x 1, x 2 onto the vector u = u1,u2 u = u 1, u 2 is determined from. Proju(x) = (x ⋅ u)u = (x1u1 +x2u2) u1,u2 .
DA: 86 PA: 37 MOZ Rank: 49