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Simplex Method Steps
10
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Step 1: Problem Formulation
Formulate the linear programming problem in standard form, where all the constraints are inequalities with non-negative right-hand sides, and the objective function is to be maximized.
Step 5: Perform Pivoting
Conduct the pivot operation to transform the pivot element to 1 and create zeros in the rest of the pivot column using row operations.
Step 8: Iterating
If the current tableau is not optimal, repeat Steps 3 to 7 using the updated simplex tableau until an optimal solution is obtained or the problem is found to be unbounded.
Step 4: Identify Pivot Row
Locate the pivot row by dividing the rightmost column values by their corresponding positive values in the pivot column, choosing the row with the smallest non-negative quotient.
Step 2: Constructing the Initial Simplex Tableau
Convert the standard form into an initial simplex tableau by introducing slack, surplus, and artificial variables as necessary to handle inequalities.
Step 3: Identify Pivot Column
Determine the entering variable by identifying the column in the simplex tableau that corresponds to the most negative coefficient in the objective function row.
Step 6: Update the Simplex Tableau
After pivoting, update the simplex tableau to reflect the new basic feasible solution (new values in the rows and columns according to the row operations performed).
Step 7: Check for Optimality
Verify if the current simplex tableau represents the optimal solution by checking if there are no negative coefficients in the objective function row, except possibly in the artificial variable columns.
Step 9: Identify Optional Solutions
If there is more than one zero in the objective function row, corresponding to non-basic variables, there may be alternative optimal solutions to evaluate.
Step 10: Interpret the Solution
Analyze the final simplex tableau to deduce the optimal values for the original variables of the problem and interpret them with respect to the context of the linear programming problem.
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