Lindo and its tableau

Mood:  a-ok
Now Playing: Kabhi Kabhi (one of my favorite songs!)
Topic: LP Software

I’m thinking that probably for the tableau when it comes to problems with excess and artificial variables, that the way to treat this is to first convert the problem into a two-phase problem, with the new objective function …

…Just did that … found out it doesn’t work, since there is a number in the objective function, and all numbers in the objective function must be associated with a variable. Oh well, not sure what method it is using to solve these problems, but I did the tableau and pivot actions several time, and although when I am doing it, it is claiming the solution is infeasible, it eventually reaches an optimal solution. I wonder if this is the interior point algorithm … I don’t think I have ever done that algorithm – so, probably why I don’t understand what Lindo is doing.