Apple Numbers '09 - Manual (Page 21)

Chapter 1 Numbers Tools and Techniques 21
Learn more about this editor in “Adding and Editing Formulas Using the Formula
Editor” on page 122.
The
 formula bar, always visible below the format bar, can also be used to create and
modify a formula in a selected table cell.
Open the
Function Browser.
Cancel button
Discard changes.
Accept button
Save changes. Change the formula
viewing size.
Text field
View or edit a formula.
Instructions for adding and editing formulas using this tool are in “Adding and
Editing Formulas Using the Formula Bar” on page 123.
Using the
 Function Browser is the fastest way to add a function. A function is a
predefined formula that has a name (such as SUM and AVERAGE).
Select a function to
view information
about it.
Search for a function.
Insert the selected function.
Select a category
to view functions in
that category.
To open the Function Browser, choose Show Function Browser from the Function
pop-up menu in the toolbar.