Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Diagonal of a Matrix

  1. May 29, 2005 #1
    Dumb question, but just say you have a Matrix in the form

    0 0 0
    0 4 0
    0 0 5

    Is it still considered a diagonal matrix if the (1,1) entry is a 0?
  2. jcsd
  3. May 29, 2005 #2


    User Avatar
    Science Advisor
    Homework Helper

    Yes, that's still a diagonal matrix. The zero matrix is also a diagonal matrix, the definition doesn't care what's on the main diagonal, only that everything else is zero.
    Last edited: May 29, 2005
  4. May 29, 2005 #3
    Thank you!
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook