(%i1) A : matrix([ 1, 2, - 3],[ - 2, 0, 4],[ 0, 4, - 2],[ - 2, - 4, a]) ;
(A) ( 1 2 3 2 0 4 0 4 2 2 4 a )
(%i4) X : A $
X : rowop( X, 2, 1, - 2) $
X : rowop( X, 4, 1, - 2) ;
0 errores, 0 advertencias (X) ( 1 2 3 0 4 2 0 4 2 0 0 a 6 )

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