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Simplex Method Steps

10

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Step 1: Problem Formulation

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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.

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Step 5: Perform Pivoting

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Conduct the pivot operation to transform the pivot element to 1 and create zeros in the rest of the pivot column using row operations.

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Step 8: Iterating

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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.

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Step 4: Identify Pivot Row

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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.

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Step 2: Constructing the Initial Simplex Tableau

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Convert the standard form into an initial simplex tableau by introducing slack, surplus, and artificial variables as necessary to handle inequalities.

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Step 3: Identify Pivot Column

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Determine the entering variable by identifying the column in the simplex tableau that corresponds to the most negative coefficient in the objective function row.

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Step 6: Update the Simplex Tableau

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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).

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Step 7: Check for Optimality

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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.

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Step 9: Identify Optional Solutions

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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.

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Step 10: Interpret the Solution

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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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