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You can choose various unary and binary operators to build your Office Math formula. Unary refers to operators that affect one placeholder. Binary refers to operators that connect two placeholders. The lower area of the Elements pane displays the individual operators. The context menu of the **Commands** window also contains a list of these operators, as well as additional operators. If you need an operator that is not contained in the Elements pane, use the context menu or type it directly in the **Commands** window.

Open the context menu in the Commands window - choose

Unary/Binary OperatorsChoose

View - Elements; then on the Elements pane selectUnary/Binary Operatorsfrom the list box.

The following is a complete list of the unary and binary operators. The symbol next to the operator indicates that it can be accessed through the Elements pane (choose **View - Elements**) or through the context menu of the Commands window.

Plus

Inserts a **plus** with one placeholder. You can also type **+ ** in the **Commands** window.

Minus

Inserts a **minus** with one placeholder. You can also type **-** in the **Commands** window.

Plus/Minus

Inserts a **plus/minus** with one placeholder. You can also type **+-** in the **Commands** window.

Minus/Plus

Inserts a **minus/plus** with one placeholder. You can also type **-+** in the **Commands** window.

Addition (plus)

Inserts a **plus** with two placeholders. You can also type **+** in the Commands window.

Multiplication (dot)

Inserts a dot operator with two placeholders. You can also type **cdot** in the **Commands** window.

Multiplication (x)

Inserts an 'x' **multiplication** with two placeholders. You can also type **times** in the **Commands** window.

Multiplication (*)

Inserts an asterisk multiplication sign with two placeholders. You can also type ***** in the **Commands** window.

Subtraction

Inserts a subtraction sign with two placeholders. You can also type **-** in the **Commands** window.

Division (Fraction)

Inserts a fraction with two placeholders. You can also type **over** in the **Commands** window.

Division

Inserts a division sign with two placeholders. You can also type **div** in the **Commands** window.

Division (Slash)

Inserts a slash '/' with two placeholders. You can also type **/** in the **Commands** window.

Boolean NOT

Inserts a **Boolean NOT** with one placeholder. You can also type **neg** in the **Commands** window.

Boolean AND

Inserts a **Boolean AND** with two placeholders. You can also type **and** in the **Commands** window.

Boolean OR

Inserts a **Boolean OR** with two placeholders. You can also type **or** in the **Commands** window.

Concatenate

Inserts a **concatenation sign** with two placeholders. You can also type **circ** in the **Commands** window.

You can also insert user-defined unary operators by typing **uoper** in the **Commands** window, followed by the syntax for the character. This function is useful for incorporating special characters into a formula. For example, the command **uoper %theta x** produces a small Greek letter theta (a component of the **Office Math** character set). You can also insert characters not in the Office character set by choosing **Tools - Symbols - Edit**.

You can also insert user-defined binary commands by typing **boper** into the **Commands** window. For example, the command **y boper %theta x** produces the small Greek letter theta preceded by a **y** and followed by an **x**. You can also insert characters not in the Office character set by choosing **Tools - Symbols - Edit**.

By typing **oplus** in the **Commands** window, you insert a **circled plus operator** in your document.

Type **ominus** in the **Commands** window to insert a **circled minus operator**.

Type **odot** in the **Commands** window to insert a **circled dot operator** in the formula.

Type **odivide** in the **Commands** window to insert a **circled division operator** in the formula.

Type **a wideslash b** in the **Commands** window to produce two characters with a slash (from lower left to upper right) between them. The characters are set such that everything to the left of the slash is up, and everything to the right is down. This command is also available in the context menu of the **Commands** window.

Type **a widebslash b** in the **Commands** window to produce two characters with a slash (from upper left to lower right) between them. The characters are set such that everything to the left of the slash is down, and everything to the right is up. This command is also available in the context menu of the **Commands** window.

Type **sub** or **sup** in the Commands window to add indices and powers to the characters in your formula; for example, a sub 2.

If you want to use a colon ':' as division sign, choose

Tools - Symbolsor click theSymbolsicon on the Tools bar. Click theEditbutton in the dialogue box that appears, then select theSpecialsymbol set. Enter a meaningful name next toSymbol, for example, "divide" and then click the colon in the set of symbols. ClickAddand thenOK. ClickOKto close theSymbolsdialogue box too. Now you can use the new symbol, in this case the colon, by entering its name in the Commands window, for example,a %divide b = c.

When entering information manually in the Commands window, please note that a number of operators require spaces between the elements for the correct structure. This is especially true if you are using values instead of placeholders in your operators, for example, to construct a division 4 div 3 or a div b.