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

/* code_begins */

{{{
           /*15(a)*/

a=matrix([[1,1,1,1],[0,0,0,0],[0,0,0,0]])
print a
a.rank()
          /*15(b)*/
a=matrix([[1,0,1,0],[0,1,0,1],[0,0,0,0],[0,0,0,0]])
print a
a.rank()
           /*15(c)*/
a=matrix([[1,-1,1,-1],[0,0,0,0],[0,0,0,0]])
print a
a.rank()
}}}

/* code_ends */

 * '''Solution by''': 
   * <k.sivalatha> <student> <prakasam engg.coll.>

   * <N.srija> <student> <prakasam engg.coll.>

   * <k.Triveni> <student> <prakasam engg.coll.>