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Math Help - sign of a determinant

  1. #1
    Member
    Joined
    Nov 2010
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    sign of a determinant

    hi, i have four different 4*4 determinants of integers , so is there a short cut for finding the sign of the determinant than by actually finding the value of it (by LU decompostion) ?
    Thanks.
    Last edited by pranay; August 7th 2011 at 12:20 PM.
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