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

/* code_begins */

{{{

k=var('k')
a=matrix([[1,4,-2],[1,7,-6],[0,3,k]])
print a
a.det()
solve(a.det(),k)
a=matrix([[1,4,-2],[1,7,-6],[0,3,-4]])
print a
a.inverse()/*this gives error message that the matix should not be nonsingular*/

}}}

/* code_ends */

 * '''Solution by''': 
   * <tejaswi>, <student>, <prakasam>
   * <Your Name>, <Profession>, <Organization>