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Understanding Operators

Summary: An explanation of the operators used in Excel. (This tip works with Microsoft Excel 97, Excel 2000, Excel 2002, and Excel 2003.)

Operators are symbols used in a formula to define the relationship between two or more cell references, or between two or more values. They cause Excel to perform some action. For instance, consider the following formula:

= B3 + B4

In this case, the plus sign is the operator. This is not the only operator that Excel supports, however. There are several types of operators supported by Excel. Operators of the most common type, arithmetic, are shown here:

Operator Meaning
+ Addition
- Subtraction
* Multiplication
/ Division
% Percent (placed after a value)
^ Exponentiation

Excel also supports Boolean, or comparison, operators. These operators are used to compare two values or expressions, returning either the logical value TRUE or FALSE. These are special values supported by Excel to represent the outcome of a comparison. Comparison operators are used most often in arguments for logical functions. For example, consider the following formula:

=IF(B3 > 99,"Limit has been exceeded","")

This formula uses the IF function to determine whether the value contained in cell B3 is greater than 99. If it is, the indicated text message is displayed in the cell containing this formula. Otherwise, nothing is displayed.

As you develop more complex Excel worksheets, you will find yourself relying more and more on comparison operators. The comparison operators are listed in Table 1-3.

Operator Meaning
= Equal to
> Greater than
>= Greater than or equal to
< Less than
<= Less than or equal to
<> Not equal to

Finally, Excel also provides a text operator, which is used to combine (or concatenate) text. This operator is the ampersand (&) character.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (1921) applies to Microsoft Excel versions: 97 | 2000 | 2002 | 2003

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