||'''Book'''|| Advanced Engineering Mathematics || ||'''Author'''|| Erwin Kreyszig || ||'''Edition'''|| 8th Edition || /* code_begins */ {{{ a=matrix([[205,16,81],[0,-13,2],[0,0,16]]) print a b=det(a) print b }}} /* code_ends */ * '''Solution by''': *, , *, , *, , *, , *, , *, ,