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  1. Z

    Projections in Linear Algebra

    I'm fairly sure I'm right about the column space but I could use an explanation on perpendicular matrices if anyone can help.
  2. Z

    Projections in Linear Algebra

    Homework Statement Some of the details in this question are based off the use of matlab. If it's needed I can show the matrices that MATLAB creates. Let A = magic(8); A = A(:,1:3) and let S be the Column Space of A. For b = [1:8]' compute the projection of b onto the Column Space of A...
  3. Z

    Basic Calculus help with finding components

    I appreciate the answer. And, actually, now that I see it, this should've been really obvious. Thank you ^^
  4. Z

    Basic Calculus help with finding components

    I always seem to find this place whenever I'm in need of homework help, so I finally decided to register (and hopefully post in the right area). My given problem is Here are three displacements, each in meters: d1 = 4.2i + 2.7j - 7.9k, d2 = -1.0i + 2.0j + 3.0k, and d3 = 4.0i + 3.0j +...
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