Microsoft Office Tutorials and References
In Depth Information
Specifying variable cells
Figure 18-25 The Solver lists the constraints and uses defined cell and range names whenever
Notice that two of the constraints have range references on the left side of the comparison
operator. The expression $D$2:$D$7>=$G$15 stipulates that the value of each cell in D2:D7
must be 6 or greater, and the expression $F$2:$F$7<=$G$14 stipulates that the value of
each cell in F2:F7 must be no greater than 33.30 percent. Each of these expressions is a
shortcut way of stating six separate constraints. If you use this kind of shortcut, the
constraint value on the right side of the comparison operator must be a single cell reference, a
range of the same dimensions as the range on the left side, or a constant value. We could
have entered constant values as constraints, but this way we can change the numbers on
the spreadsheet (where we can see them) and rerun the Solver.
After completing the Solver Parameters dialog box, click Solve. In the advertisement
campaign example, the Solver succeeds in finding an optimal value for the objective cell while
meeting all the constraints and displays the dialog box shown in Figure 18-26. The values
displayed on your worksheet at that time result in the optimal solution. You can leave these
values in the worksheet by selecting the Keep Solver Solution option and clicking OK, or
you can restore the original values by selecting the Restore Original Values option and
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