||'''Book'''|| Advanced Engineering Mathematics ||
 ||'''Author'''|| Erwin Kreyszig ||
 ||'''Edition'''|| 8th Edition ||

/* code_begins */

{{{
k=var('k')
a=matrix([[k,1],[4,k]])
print a
a.det()
solve(a.det(),k)
a.pivots()
a=matrix([[1,1],[4,2]])
a.swap_rows(1,0)
a.pivots()

}}}

/* code_ends */

 * '''Solution by'''
   * sneha,student,pec
   * divya,student,pec