||'''Book'''|| Linear Algebra || ||'''Author'''|| Gilbert Strang || ||'''Edition'''|| || /* code_begins */ {{{ A=matrix([[2,3,1],[1,-2,1],[-1,0,-2]]) B = A.with_rescaled_row(0, 3) B.add_multiple_of_row(1,0,-1) r=A.det() e=B.det() print r print e }}} /* code_ends */ * '''Solution by''': * , , * , , * , ,