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!

Help with 7x7 gauss jordan elimination program

  1. Sep 21, 2008 #1
    1. The problem statement, all variables and given/known data

    Hi, im new to gauss jordan elimination and our teacher onlt taught us how to solve a 3x3 equation and gave us a 7x7 problem to answer due tom.

    2m + 3n - p + q + 2r - s + 2t = 1
    m - n + p - q + r + s + t = 2
    2m + 2n - 2p + q - 2r + s - t = 1
    m - 2p + q - r - s + t = 1
    m - 2n + p - q + r + s + t = 2
    m + 2n + 2p + 2q + r - s + 2t = 1
    m - n - 2p - q - r + s + t = 2



    2. Relevant equations

    2m + 3n - p + q + 2r - s + 2t = 1
    m - n + p - q + r + s + t = 2
    2m + 2n - 2p + q - 2r + s - t = 1
    m - 2p + q - r - s + t = 1
    m - 2n + p - q + r + s + t = 2
    m + 2n + 2p + 2q + r - s + 2t = 1
    m - n - 2p - q - r + s + t = 2

    3. The attempt at a solution

    i tried solving it thrice . . . using different methods i saw on the internet, but im scared i dont want to fail. I realy need help pls help me out dudes.

    tahnks!
     
  2. jcsd
  3. Sep 21, 2008 #2

    Defennder

    User Avatar
    Homework Helper

    First thing you should do is to write out the equations in the form of a matrix:

    The entries of the matrix should consist only of the co-efficients of the unknowns. Then just juxtapose the numbers on the RHS of the system of equations to form an augmented matrix. Then perform row-reduction. Where are you stuck? It's hard to help if you don't show any work.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Help with 7x7 gauss jordan elimination program
Loading...