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

/* code_begins */

{{{
a=matrix([[1,1,1,1],[1,1,1,2],[1,1,3,1],[1,4,1,1]])
a.det()
}}}

/* code_ends */

 * '''Solution by''': 
   * Manisha,student,snist
     Deepthi,student,snist