Factorization into A = LU

Factorization into A = LU
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Taught by OCW
Gilbert Strang, 18.06 Linear Algebra, Spring 2005. (Massachusetts Institute of Technology: MIT OpenCourseWare), http://ocw.mit.edu (Accessed November 16, 2008). License: Creative Commons BY-NC-SA.
More info at: http://ocw.mit.edu/terms
Factorization into A = LU -- Lecture 4. How to use transposes of matrices and inverses, and permutation matrices.
  • When is a matrix invertible?
  • What is the transpose of a matrix?
  • What is LU?
  • How are permutations used in Linear Algebra?
  • What is a permutation matrix?
  • When is the inverse of a matrix just its transpose?
This lesson elaborates on lecture #3 and delves a bit deeper into transposes and does a good job of introducing permutation matrices. A good but somewhat redundant lecture.
  • Currently 3.0/5 Stars.
Reviewed by MathVids Staff on November 19, 2008.
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