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

/* code_begins */

{{{
l=matrix([[1,0],[4,1]])
l
b=matrix([[2],[11]])
b
c=l.inverse()*b
c
U=matrix([[2,4],[0,1]])
U
x=U.inverse()*c
x

}}}

/* code_ends */

 * '''Solution by''': 
   * RAVICHANDRA,STUDENT,VIGNAN INSTITUTE OF TECHNOLOGY AND SCIENCE