||'''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
}}}
print matrix(RR,[[-3/5,4/5,-8/5],[1/10,-1/20,1/10],[-2/5,1/5,3/5]])
 print 
 A = matrix(RR,[[-3/5,4/5,-8/5],[1/10,-1/20,1/10],[-2/5,1/5,3/5]])
 print A 
 print A.parent() 
 print A = matrix(QQ, [[-3/5,4/5,-8/5],[1/10,-1/20,1/10],[-2/5,1/5,3/5]])
 print A 
 print A.parent()      
A = matrix(RR,[[-3/5,4/5,-8/5],[1/10,-1/20,1/10],[-2/5,1/5,3/5]])
print A 
A = matrix(CDF,[[-3/5,4/5,-8/5],[1/10,-1/20,1/10],[-2/5,1/5,3/5]])
print A

/* code_ends */

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