The problem I am having now is getting it to replicate the example problem with JM Baillard's simplex routine in our 41C program library on the site. Returns not the correct answer but "problem infeasible".

Either I am setting up the problem wrong, or the 49G program can't cope with equality constraints--just less-than and greater-than.

I will do a little more homework on linear programming and see what I come up with. It really is cool, though, to have an LP routine on a handheld device.

Les