(*						      *)
(* Numerical Mathematics and Computing, Fifth Edition *)
(* Ward Cheney & David Kincaid		              *)
(* Brooks/Cole Publ. Co.			      *)
(* (c) 2004                                           *)
(* No warranties implied or expressed.	              *)
(* File: taylor_series				      *)

(* two-variable Taylor series example *)
Series[Cos[Pi*x] + Sin[Pi*y] + Exp[x*y], {x,1,2}, {y,1,2}]
Normal[%]
% /. x->1+x
% /. y->1+y