The new formulation yields the solution XI = 0, and X2 = 400 lb (verify with TORA!), which
does not satisfy the implied requirement fOT SOO Ib of feed. This means that the constraint
XI + X2 ~ 800 must be used explicitly and that the protein and fiber constraints must remain exaClly
as given originally.
Along the same line of reasoning, one may be tempted to replace XI + X2 ;:::: 800 with
XI + X2 = 800. In the present example, the two constraints yield the same answer. But in general
this may not be the case. For example, suppose that the daily mix must include at least
500 lb of corn. In this case, the optimum solution will call for using 500 lb of corn and 350 Ib
of soybean (verify with TORA!), which is equivalent to a daily feed mix of 500 + 350 = 850 lb.
Imposing the equality constraint a priori will lead to the conclusion that the problem has no
The new formulation yields the solution XI = 0, and X2 = 400 lb (verify with TORA!), which
does not satisfy the implied requirement fOT SOO Ib of feed. This means that the constraint
XI + X2 ~ 800 must be used explicitly and that the protein and fiber constraints must remain exaClly
as given originally.
Along the same line of reasoning, one may be tempted to replace XI + X2 ;:::: 800 with
XI + X2 = 800. In the present example, the two constraints yield the same answer. But in general
this may not be the case. For example, suppose that the daily mix must include at least
500 lb of corn. In this case, the optimum solution will call for using 500 lb of corn and 350 Ib
of soybean (verify with TORA!), which is equivalent to a daily feed mix of 500 + 350 = 850 lb.
Imposing the equality constraint a priori will lead to the conclusion that the problem has no
การแปล กรุณารอสักครู่..