Recent content by Circular_Block

  1. C

    Showing something satisfies Inner Product - Involves Orthogonal Matrices

    Doing that you'll end up with (ATx)⋅x right?
  2. C

    Showing something satisfies Inner Product - Involves Orthogonal Matrices

    Homework Statement [/B] Let Z be any 3×3 orthogonal matrix and let A = Z-1DZ where D is a diagonal matrix with positive integers along its diagonal. Show that the product <x, y> A = x · Ay is an inner product for R3. Homework Equations None The Attempt at a Solution I've shown that x · Dy is...