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Matrix prerequisities for Gauss elimination

  1. Dec 23, 2011 #1
    hi all,

    Is there any matrix pre-requisities for Gauss elimination. Working on linear equations, I think I 've composed the global(stiffness) matrix of the LHS of linear equation.And found on the net the working code which uses Gauss elimination method, in the code beginning it checks non-zero values of diagonal term, if it founds algorithm exits.
    Since I'm not fully conversant everything in depth, I assume that none of the diagonal products shouldn't be zero and therefore my global stiffness matrix is ill conditioned?

    Any comment will be appreciated,
     
  2. jcsd
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