# Calculate values using data in table cells in Keynote on Mac

You can create formula or function cells that automatically perform calculations using the data in any cells you select. For example, you can compare values in two cells, calculate the sum or product of cells, and so on. The result of a formula or function appears in the cell where you entered it.

You can also use any of the more than 250 predefined mathematical functions included with Keynote to create formulas. There are functions for applications including statistics, engineering, and finance, some of which retrieve information remotely via the internet. Detailed information about each of these functions appears in the Functions Browser, which appears when you type an equal sign (=) in a cell, and in Formulas and Functions Help online.

If you want to add an equation or expression to your presentation without performing a calculation, see Add an equation with LaTeX or MathML.

## Use the Formula Editor like a calculator

You can enter number values in formulas to make calculations, just as you would in a calculator.

Click a blank cell where you want to add your formula, then type the equal sign (=) to open the Formula Editor.

Type the equation you want to calculate, using values and arithmetic operators (for example, +,-,*, and /).

For example, if you type the equal sign (=), then type “1+1” in the Formula Editor, the cell returns the result of 2. You can also use parentheses; if you type 4+6*(3-1), the cell returns the result of 16.

## Insert a formula

You can create simple or complex arithmetic formulas to perform calculations on the values in your tables.

Click the cell where you want the result to appear, then type the equal sign (=).

The Formula Editor opens. Drag the left side of the Formula Editor to move it. You can resize it by dragging from any of its outer edges.

Click a cell to use as the first argument in your formula, or type a value (for example, a number such as 0 or 5.20).

Type an arithmetic operator (for example, +, -, *, or /), then click a cell to use as the next argument in your formula, or type a value.

By default, + is inserted between cell references.

Continue adding operators and arguments until your formula is complete.

Press Return or click in the Formula Editor when you’re done.

If you click , you exit the Formula Editor without saving your changes.

If there’s an error in your formula, appears in the result cell. Click it to see the error message. If the message indicates another cell is causing the error, you can click the cell reference to select the cell with the error.

## Insert a function

Click the cell where you want the result of the function to appear, then type the equal sign (=).

The Formula Editor opens, and the Functions Browser appears on the right side of the window, displaying a list of all the functions. For help with a function, click it.

Drag the left side of the Formula Editor to move it. You can resize it by dragging from any of its outer edges.

Type a function name (or terms associated with the function, such as “address”) in the search field at the top of the Functions Browser, or browse the available functions, then double-click the name of the function you want.

The function appears in the Formula Editor with all of the required and optional arguments for the function.

You can get help for the function in the Functions Browser, choose values for the arguments, show the formula as text temporarily, or convert it to text permanently by clicking arrows in the Formula Editor (as shown below).

Converting the formula to text closes the Formula Editor and leaves the text version of the formula in the cell.

Select an argument in the function, then enter a value or select cells to include in the calculation by doing one of the following:

*Select a cell:*Click the cell.*Select a range of cells across multiple rows and columns:*Drag across the range of cells you want to include.*Add the values of a single row or column:*Click the column letter at the top of the column or the row number to the left of the row—or select all of the cells in the column or row.

Press Return or click in the Formula Editor when you’re done.

If you click , you exit the Formula Editor without saving your changes.

If there’s an error in your formula, appears in the result cell. Click it to see the error message. If the message indicates another cell is causing the error, you can click the cell reference to select the cell with the error.

## Compare values using a formula

You can use comparison operators to check whether the values in two cells are equal, or if one value is greater or less than the other. To do this, you must set up a statement within a cell, for example A1 > A2, meaning the value in cell A1 is greater than the value in cell A2. The result of the comparison operator is expressed as “true” or “false.”

Click the cell where you want the comparison result to appear, then type the equal sign (=).

The Formula Editor opens. Drag the left side of the Formula Editor to move it. You can resize it by dragging from any of its outer edges.

Select a cell whose value you want to compare, or type a value to compare.

Type a comparison operator (>, >=, =, <>, <, or <=), then select a cell whose value you want to compare, or type a value to compare.

Press Return or click in the Formula Editor when you’re done.

If you click , you exit the Formula Editor without saving your changes.

If there’s an error in your formula, appears in the result cell. Click it to see the error message. If the message indicates another cell is causing the error, you can click the cell reference to select the cell with the error.

## Refer to cells in formulas

In your formulas, you can include references to cells, ranges of cells, and whole columns or rows of data—including cells in other tables and on other slides. Keynote uses the values in the referenced cells to calculate the result of the formula. For example, if you include “A1” in a formula, it refers to the value in cell A1 (the cell in Column A and Row 1.)

The examples below show the use of cell references in formulas.

If the referenced range is more than one cell, the starting and ending cells are separated by a single colon.

COUNT(A3:D7)

If the reference is to a cell in another table, the reference must contain the name of the table.

Table 2::B2

Note that the table title and cell reference are separated by a double colon (::). When you select a cell in another table for a formula, the name of the table is automatically included.

If the reference is to a cell in a table on another slide, the slide name must also be included.

SUM(Slide 2::Table 1::C2:G2)

The slide name, table title, and cell reference are separated by double colons.

To refer to a column, you can use the column letter. The formula below calculates the total of the cells in the third column:

SUM(C)

To refer to a row, you can use the row number. The formula below calculates the total of the cells in the first row:

SUM(1:1)

To refer to a row or column with a header, you can use the header name. The formula below totals all the cells in the row with the header “Revenue”:

SUM(Revenue)

The formula below multiplies the sum of the column named “Number of Guests” by the value in cell B2 in another table on another slide.

## Change an existing formula

You can edit an existing formula so that it refers to different cells.

Double-click the result cell with the formula you want to edit.

The Formula Editor opens, displaying the formula. Drag the left side of the Formula Editor to move it.

Do any of the following:

*Change the cell references:*Select the existing cell addresses you want to change, then select the new cells.*Remove cell references:*Place the insertion point within the argument area for the function, select the unwanted cell references, then press Delete on your keyboard.*Add more cell references:*Place the insertion point within the argument area for the function, then select the new cells you want to add.

Press Return or click in the Formula Editor when you’re done.

If you click , you exit the Formula Editor without saving your changes.

## Preserve row or column references in formulas

You can set row and column references in a formula to be absolute so that you can use the same formula somewhere else without changing the cell references.

If you don’t preserve the row or column references, if you move the formula (by cutting and pasting it elsewhere or by adding new rows and columns to the table), the references change relative to the formula’s new location.

Double-click the result cell with the formula you want to edit.

The Formula Editor opens, displaying the functions. Drag the left side of the Formula Editor to move it.

Click the triangle on the token representing the cell range you want to preserve.

Select Preserve Row or Preserve Column for the start or end addresses of the selected range.

Press Return or click in the Formula Editor when you’re done.

If you click , you exit the Formula Editor without saving your changes.