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

/* code_begins */

{{{
l=matrix([[1,0,0,0],[2,1,0,0],[2,1,1,0],[3,2,4,1]])
u=matrix([[1,2,0,1,2,1],[0,0,2,2,0,0],[0,0,0,0,0,1],[0,0,0,0,0,0]])
A=l*u
A.rank()
A.left_kernel()
}}}

/* code_ends */

 * '''Solution by''': 
   * <g.mamatha>,  <student>, <prakasam engg college>
   * <VVL Amruthavalli>, <student>, <prakasam engg college>