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

/* code_begins */

{{{
A=matrix([[1,16,0], [2,20,2], [0,4,1]])
print A
~ A}}}

/* code_ends */

 * '''Solution by''': 
   *  <P.Venkateswarlu>, <Student>, <VITS>
   *  <K.Santhosh Kumar Reddy>, <Student>, <VITS>