initialzn_calc - Phase I system The initial Simplex tableau...

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Unformatted text preview: Phase I system The initial Simplex tableau is: x1 x2 x3 x4 x5 x6 x7 x8 rhs ------------------------------------------------- 1 1 1 1 0 0 1 0 100 0.9 0.3 -0.6 -1 -1 0 0 1 0 0.2 0.1 0 -0.3 0 1 0 0 0 ------------------------------------------------- (-w) 0 0 0 0 0 0 1 1 0 To get a tableau w.r.t. B = (7,8,6) we need to subtract 1st 2 rows from (-w) row. subtract 1st row from (-w) row x1 x2 x3 x4 x5 x6 x7 x8 rhs ------------------------------------------------- 1 1 1 1 0 0 1 0 100 0.9 0.3 -0.6 -1 -1 0 0 1 0 0.2 0.1 0 -0.3 0 1 0 0 0 ------------------------------------------------- (-w) -1 -1 -1 -1 0 0 0 1 -100 subtract 2 nd row from (-w) row x1 x2 x3 x4 x5 x6 x7 x8 rhs --------------------------------------------------- 1 1 1 1 0 0 1 0 100 0.9 0.3 -0.6 -1 -1 0 0 1 0 0.2 0.1 0 -0.3 0 1 0 0 0 --------------------------------------------------- (-w) -1.9 -1.3 -0.4 0 1 0 0 0 -100 Now we have the Phase I tableau for B = (7,8,6): Since we are minimizing column 1 looks good, tie for min ratio, can pivot in row 2 or 3. column 1 looks good, tie for min ratio, can pivot in row 2 or 3....
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initialzn_calc - Phase I system The initial Simplex tableau...

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