Wednesday, December 4, 2013

the simplex method

the graphical method  shows that the optimum LP solution is always associated 

with a corner point of solution space.

this result is key to the development of the general algebraic simplex method for solving any LP

model.

The transition from the geometric corner-point solution to the simplex method entails a computational
procedure that determines the corner points algebraically.

This is accomplished by first converting all the inequality constraints into equations and then manipluating 
the resulting equations in systematic manner.

A main feature of the simplex method is that it solves the LP in iterations.

Each iteration moves the solution to a new corner point that has the potential
to improve the value of the objective fuction .

The process ends when no further improvements can be realized .

The simplex method involves tedious and voluminous computations .

Which makes the computer  an essential tool for solving LP Problems.

The computational rules of the simplex method are thus designed to facilitate automatic computations.