excel About Formulas

Virtually every successful spreadsheet application uses formulas. In fact, constructing formulas
can certainly be construed as a type of programming.
For a much more comprehensive treatment of Excel formulas and functions, refer to my
book, Excel 2010 Formulas (Wiley).
Formulas, of course, are what make a spreadsheet a spreadsheet. If it weren’t for formulas, your
worksheet would just be a static document — something that a word processor that has great
support for tables could produce.
A formula entered into a cell can consist of any of the following elements:
h Operators such as + (for addition) and * (for multiplication)
h Cell references (including named cells and ranges)
h Numbers or text strings
h Worksheet functions (such as SUM or AVERAGE)
A formula in Excel 2010 can consist of up to 8,192 characters. After you enter a formula into a
cell, the cell displays the result of the formula. The formula itself appears in the formula bar when
the cell is activated. For a better view of a lengthy formula, click and drag the thick border of the
formula bar to expand it vertically.