MA3231 Linear Programming

  September 5, 2017

  The file matlab_pivot.txt needs to be saved in four different files.

  Three .m files are included:
	* dict.m
	* ratios.m
	* lppivot.m

  Also, there is a preamble. The first line defines the important data
structures such as A, b, c as global variables. After this line is entered
into MATLAB, the user enters their problem-specific data (A,b,c,z=0) and
then feeds MATLAB the remaining lines of the preamble: these define
	* m,n which MATLAB computes as the numbers of rows/cols, resp., of A
	* bas and nonbas, which MATLAB guesses are the initial basic and
	 non-basic variables: it assumes the last m columns of A are an
 	 identity matrix
	* myeps, a number below which the program will treat values as zero

  Once you set things up with these few lines, and if dict.m, ratios.m and
lppivot.m are loaded properly, your MATLAB session should allow you to perform
the Simplex Method in this step-by-step fashion to check your hand
calculations.

  If you detect any errors or have difficulties, please contact me.