Projections onto Subspaces and Least Squares projection matrix

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Taught by OCW
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Lesson Description:

Projections onto Subspaces and Least Squares projection matrix -- Lecture 15. Learn what a projection is in Linear Algebra and how to compute a projection.

Gilbert Strang, 18.06 Linear Algebra, Spring 2005. (Massachusetts Institute of Technology: MIT OpenCourseWare), http://ocw.mit.edu (Accessed November 22, 2008). License: Creative Commons BY-NC-SA.
More info at: http://ocw.mit.edu/terms

Additional Resources:
Questions answered by this video:
  • What does it mean to project a vector onto another vector?
  • How do you compute a projection matrix?
  • Why do you project a vector or matrix?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson explains what a projection is and how to find the projection vector. A very important lesson in the grand scheme of Linear Algebra, and very well-taught.