1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Non-square matrices

  1. Nov 4, 2007 #1
    I need help proving the following:

    1 A non-square matrix cannot have both a left and a right inverse
    2 If a non-square matrix has a left(right) inverse, it has infinitely many.
    3 If m<n, a non-square matrix has a right inverse if and only if rank A=m
  2. jcsd
  3. Nov 4, 2007 #2
    construct a non square matrix and try to find its inverse and see what happens.
  4. Nov 4, 2007 #3

    Okay, but how does that show point 1 and 3
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Non-square matrices