SIMPLEX METHOD FOR CASIO CFX-9850/9860GB PLUS
About this program: This is not one of my
programs. It's a program that comes archived in a Casio calculator and it
has to be loaded for use. No problem, that only takes a half minute.
I'll tell you how to do it later. This is an excellent program for doing
standard maximization, mixed, and minimization problems. It uses positive
slack variables for ≥ inequalities. So,
you must reformulate the inequalities and the objective function for some
non-standard problems. It handles standard maximization problems with no
other change than entering positive slack variables. I suggest you use
this program if you know the method that uses positive slack variables for ≥, or
if you have the time to learn it. I have a program that I have written
that uses negative slack variable for ≥, but it is probably not as robust as
this program. It's listed as using negative slack variables on the program
list on this Website want to try to use it..
Loading: Okay, so how do I load it.
Now for using it: Let's do this a maximization problem:
Using slack variables, the first tableau
will be this:
Plug that into matrix A; go to your program and execute it and your answer will be displayed.
Simple minimization problem:
(That's about all you can do with this program.)
Construct the first tableau to enter in
Matrix A like this:
| -1 - 3
1 0 0 -5|
Enter that into matrix A; execute the
program and you'll have this:
So, 14 is the minimum value (the positive of the answer), and y1=1; y2=2.
Last Revised: 8/15/03