El día 24 de junio de 2008 11:07, V(R) <[EMAIL PROTECTED]> escribió: > Me parece que el what-if sheet, solo es una referencia a que es el área de > la imagen llamada what-if.png... es decir, el segundo what-if está para > indicar que se trata del área donde se encuentra la imagen > > (what-if sheet area) > Lo que aparece en la ayuda de la OOo Calc 3.0 m20 build 9318 en referencia a las "what if operations" son estas dos entradas (disculpen la extensión):
"Solver Opens the Solver dialog. A solver allows to solve equations with multiple unknown variables by goal seeking methods. To access this command... Choose Tools - Solver To solve equations with the solver The goal of the solver process is to find those variable values of an equation that result in an optimized value in the target cell, also named the "objective". You can choose whether the value in the target cell should be a maximum, a minimum, or approaching a given value. The initial variable values are inserted in a rectangular cell range that you enter in the By changing cells box. You can define a series of limiting conditions that set constraints for some cells. For example, you can set the constraint that one of the variables or cells must not be bigger than another variable, or not bigger than a given value. You can also define the constraint that one or more variables must be integers (values without decimals), or binary values (where only 0 and 1 are allowed). The default solver engine supports only linear equations". "Applying Multiple Operations Multiple Operations in Columns or Rows The Data - Multiple Operations command provides a planning tool for "what if" questions.In your spreadsheet, you enter a formula to calculate a result from values that are stored in other cells. Then, you set up a cell range where you enter some fixed values, and the Multiple Operations command will calculate the results depending on the formula. In the Formula field, enter the cell reference to the formula that applies to the data range. In the Column input cell/Row input cell field, enter the cell reference to the corresponding cell that is part of the formula. This can be explained best by examples: Examples You produce toys which you sell for $10 each. Each toy costs $2 to make, in addition to which you have fixed costs of $10,000 per year. How much profit will you make in a year if you sell a particular number of toys? Calculating With One Formula and One Variable 1.To calculate the profit, first enter any number as the quantity (items sold) - in this example 2000. The profit is found from the formula Profit=Quantity * (Selling price - Direct costs) - Fixed costs. Enter this formula in B5. 2.In column D enter given annual sales, one below the other; for example, 500 to 5000, in steps of 500. 3.Select the range D2:E11, and thus the values in column D and the empty cells alongside in column E. 4.Choose Data - Multiple operations. 5.With the cursor in the Formulas field, click cell B5. 6.Set the cursor in the Column input cell field and click cell B4. This means that B4, the quantity, is the variable in the formula, which is replaced by the selected column values. 7.Close the dialog with OK. You see the profits for the different quantities in column E. Calculating with Several Formulas Simultaneously 1.Delete column E. 2.Enter the following formula in C5: = B5 / B4. You are now calculating the annual profit per item sold. 3.Select the range D2:F11, thus three columns. 4.Choose Data - Multiple Operations. 5.With the cursor in the Formulas field, select cells B5 thru C5. 6.Set the cursor in the Column input cell field and click cell B4. 7.Close the dialog with OK. You will now see the profits in column E and the annual profit per item in column F. Multiple Operations Across Rows and Columns OOo-dev allows you to carry out joint multiple operations for columns and rows in so-called cross-tables. The formula cell has to refer to both the data range arranged in rows and the one arranged in columns. Select the range defined by both data ranges and call the multiple operation dialog. Enter the reference to the formula in the Formula field. The Row input cell and the Column input cell fields are used to enter the reference to the corresponding cells of the formula. Calculating with Two Variables Consider columns A and B of the sample table above. You now want to vary not just the quantity produced annually, but also the selling price, and you are interested in the profit in each case. Expand the table shown above. D2 thru D11 contain the numbers 500, 1000 and so on, up to 5000. In E1 through H1 enter the numbers 8, 10, 15 and 20. 1.Select the range D1:H11. 2.Choose Data - Multiple Operations. 3.With the cursor in the Formulas field, click cell B5. 4.Set the cursor in the Row input cell field and click cell B1. This means that B1, the selling price, is the horizontally entered variable (with the values 8, 10, 15 and 20). 5.Set the cursor in the Column input cell field and click in B4. This means that B4, the quantity, is the vertically entered variable. 6.Close the dialog with OK. You see the profits for the different selling prices in the range E2:H11. Related Topics Multiple operations Using Scenarios" -- Alejandro Rene "El Corrector Empedernido" Fernandez Blanco Fechas para el Cuarto Festival Internacional de Cine Independiente de La Plata: del 18 al 26 de octubre de 2008. Posible Fecha para el Quinto Festival Latinoamericano de Instalación de Software Libre (FLISOL): 25 de abril de 2009. Software Freedom Day: tercer Sabado de cada Septiembre. Miembro de PLUG (Argentina). www.plug.org.ar Petitorio contra el Programa de Malversacion miPC http://www.petitiononline.com/noamipc1/ Colaborador Segundo Encuentro Estratégico de Software Libre - CRISOL Argentina 2006 http://www.crisolargentina.org.ar Coordinador General de FLISOL La Plata 2005, 2007 y 2008: http://www.flisol.info/FLISOL2008/Argentina/LaPlata --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
