(*						      *)
(* Numerical Mathematics and Computing, Fifth Edition *)
(* Ward Cheney & David Kincaid		              *)
(* Brooks/Cole Publ. Co.			      *)
(* (c) 2003                                           *)
(* No warranties implied or expressed.	              *)
(* File: exp3					      *)

(* linear programming example 3 *)
(* minimize objective function subject to equality constraints *)
ConstrainedMin[u1 + v1 + u2 + v2 + u3 + v3, 
{2*y1 + 3*y2 - 5*y3 - u1 + v1 == 4, 
 y1 - y2 - u2 + v2 == 2, 
 y1 + 2*y2 - 3*y3 - u3 + v3 == 7}, 
{u1, v1, u2, v2, u3, v3, y1, y2, y3}]