||'''Book'''|| Linear Algebra ||
 ||'''Author'''|| Gilbert Strang ||
 ||'''Edition'''||  ||

/* code_begins */

{{{
A=matrix(QQ, ([1,2,0,2],[-1,-2,1,1],[1,2,-3,-7]))
print A
print
b=vector([1,0,-2])
c=A.augment(b.transpose())
print
print c.echelon_form()

}}}

/* code_ends */

 * '''[1 2 0 2 1]
[0 0 1 3 1]
[0 0 0 0 0]''': 
   * <jyothi>, <student>, <vits>
   * <Your Name>, <Profession>, <Organization>