Results 1 to 3 of 3

Math Help - Inverse of an Identity Matrix

  1. #1
    Fel
    Fel is offline
    Newbie
    Joined
    Jun 2009
    Posts
    15

    Inverse of an Identity Matrix

    Is the inverse of an identity matrix just itself? Or does it not have an inverse? Thanks.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Prove It's Avatar
    Joined
    Aug 2008
    Posts
    10,969
    Thanks
    1009
    Quote Originally Posted by Fel View Post
    Is the inverse of an identity matrix just itself? Or does it not have an inverse? Thanks.
    Yes, the identity matrix is self-inverse.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Rhymes with Orange Chris L T521's Avatar
    Joined
    May 2008
    From
    Santa Cruz, CA
    Posts
    2,844
    Thanks
    3
    Quote Originally Posted by Fel View Post
    Is the inverse of an identity matrix just itself? Or does it not have an inverse? Thanks.
    Yes, its just itself.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. [SOLVED] Finding the inverse of a matrix using it's elementary matrix?
    Posted in the Advanced Algebra Forum
    Replies: 3
    Last Post: March 7th 2011, 06:08 PM
  2. [SOLVED] Derivative of a matrix inverse and matrix determinant
    Posted in the Advanced Algebra Forum
    Replies: 1
    Last Post: February 24th 2011, 08:18 AM
  3. identity and inverse
    Posted in the Discrete Math Forum
    Replies: 6
    Last Post: July 26th 2010, 12:29 AM
  4. Replies: 3
    Last Post: March 1st 2010, 06:22 AM
  5. [SOLVED] Elementary matrix, restore to identity matrix
    Posted in the Advanced Algebra Forum
    Replies: 3
    Last Post: February 13th 2010, 09:04 AM

Search Tags


/mathhelpforum @mathhelpforum