#WHAT IF ANALYSIS EXCEL 2010 GOAL SEEK HOW TO#
#WHAT IF ANALYSIS EXCEL 2010 GOAL SEEK PLUS#

Next, we put the array formula for AвЂ“cI in the worksheet. Since Excel will automatically change this value we also put the 10 in the cell A11 so that we can recall the value of our initial guess. We now make an initial guess for the eigenvalue of 10 (cell B11). We have placed array A in range A4:D7 and the identity matrix with the same shape as A in range F4:I7.

#WHAT IF ANALYSIS EXCEL 2010 GOAL SEEK PLUS#

To accomplish this goal we create the Excel worksheet described in Figure 2.ДЇigure 2 вЂ“ Data for Example 1 plus Goal Seek dialog box We are seeking values c such that det( AвЂ“cI) = 0. Find the eigenvalues of the following matrix A.

#WHAT IF ANALYSIS EXCEL 2010 GOAL SEEK HOW TO#

We now show how to use Goal Seek to find the eigenvalues of a matrix.Д®xample 1:В An eigenvalue of a matrix A is a constant c with the property that det( AвЂ“cI) = 0. We can use Goal Seek, for example, to find the sample size required to achieve a specified power for various tests (see, for example, Power of a SampleВ or Power for t Distribution). Note that in Excel 2016, there is no What-If Analysis option instead, you use the Forecast option, and so the selection sequence is Data > Forecast|Goal Seek instead of Data > Data Tools|What-If Analysis > Goal Seek. Thus to find all the solutions will require repeated trials based on different guesses. If the iteration converges then Excel will return the solution x in the cell where you put your initial guess.ДЇor problems where there are multiple values of x such that f( x) = a, different initial guesses for x can yield different solutions. When you press OK, Excel tries to find a value of x such that f( x) в‰€ a. By changing cell should point to a cell which has the initial guess of the value of x. Set cell should point to the cell that contains a formula for f( x). A small dialog box appears and you need to enter values for the following fields: Note: visit our page about Goal Seek for more examples and tips.Excel provides a capability called goal-seeking which enables you to find roots of a polynomial equation and a variety of other problems which are typically solved using iterative methods.В Essentially you want to find a value of x such that f( x) = a for a constant a.Д®xcelвЂ™s goal-seeking capability can be found by going to the Data tab and pressing the small down arrow to the right of the What-If Analysis option from among the Data Tools and then selecting Goal Seek. You need to sell 90% of the books for the highest price to obtain a total profit of exactly $4700. Click in the 'By changing cell' box and select cell C4.

Click in the 'To value' box and type 4700.ДҐ. What if you want to know how many books you need to sell for the highest price, to obtain a total profit of exactly $4700? You can use Excel's Goal Seek feature to find the answer.Д¤. That's how easy what-if analysis in Excel can be. Next, select cell D10 (total profit) for the result cell and click on OK.Д¬onclusion: if you sell 70% for the highest price, you obtain a total profit of $4100, if you sell 80% for the highest price, you obtain a total profit of $4400, etc. Click the Summary button in the Scenario Manager.Дў. To easily compare the results of these scenarios, execute the following steps.ДЎ. Excel will change the value of cell C4 accordingly for you to see the corresponding result on the sheet. Note: to see the result of a scenario, select the scenario and click on the Show button. Next, add 4 other scenarios (70%, 80%, 90% and 100%).ДЇinally, your Scenario Manager should be consistent with the picture below: Enter the corresponding value 0.6 and click on OK again.Д¦. Type a name (60% highest), select cell C4 (% sold for the highest price) for the Changing cells and click on OK.ДҐ. On the Data tab, in the Forecast group, click What-If Analysis.Д¤. However, what-if analysis enables you to easily compare the results of different scenarios. Note: You can simply type in a different percentage into cell C4 to see the corresponding result of a scenario in cell D10. You can use the Scenario Manager to create these scenarios. Create Different ScenariosД«ut what if you sell 70% for the highest price? And what if you sell 80% for the highest price? Or 90%, or even 100%? Each different percentage is a different scenario. If you sell 60% for the highest price, cell D10 calculates a total profit of 60 * $50 + 40 * $20 = $3800.

What if analysis excel 2010 goal seek