The New
Basis
The basis is changed by marking the entering cell with a
B and marking the leaving cell with an N. The cell flows,
dual variables and reduced costs are recomputed and shown
on the image. It is should be noted that the reduced costs
are determined by formulas in the worksheet cells. These formulas
must not be disturbed for proper option of the program.
The cell flows and dual variables are computed and placed
in the appropriate cell of the worksheet. These numbers may
be changed by the student, but they will be replaced by the
computer when the iteration button is clicked.
The complete set of iterations is shown on the next page.
Click on the link to see the optimum solution.
The Optimum
Solution
The process continues for some number of iterations. For
the example, eleven iterations were required to obtain the
optimum that is shown on the image. We know that it is optimum
because all the reduced costs are nonnegative.
A restart button is provided on the worksheet after the optimum
is found so the student can run the same problem with perhaps
a different operating option.
