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27 de octubre de 2011
209 days ago by stephanymarin@Tecpabellon
MS= MatrixSpace(QQ,3,4) A = MS([[1,1,1,20],[1,1,-3,0],[-1,1,0,-1]]) A
[ 1 1 1 20] [ 1 1 -3 0] [-1 1 0 -1]
[ 1 1 1 20] [ 1 1 -3 0] [-1 1 0 -1]
A.echelon_form ()
[1 0 0 8] [0 1 0 7] [0 0 1 5]
[1 0 0 8] [0 1 0 7] [0 0 1 5]