# How to insert an equation with fractions, square roots and exponents

**normal**, or

**Gaussian distribution**.

How to add an equation in your document, see Working with Microsoft Equation.

To insert, for example, the **normal**, or **Gaussian distribution**, do the following:

In the * Professional* present:

** 1. ** In your own equation enter * f(x)=*.

** 2. ** On the **Equation Tools Design** tab, in the
**Structures** group, click the **Fraction** button:

In the **Fraction** list choose **Stacked Fraction**:

** 3. ** Enter * 1* in the top of your fraction.

** 4. ** In the bottom of your fraction, do the following:

** 4.1. ** On the **Equation Tools Design** tab, in the
**Structures** group, click the **Radical** button. In the **Radical** list choose **Square
root**:

** 4.2. ** Enter * 2*.

** 4.3. ** On the **Equation Tools Design** tab, in the
**Symbols** group, click the **More** button:

In the list of symbols choose:

** 4.4. ** On the **Equation Tools Design** tab, in the
**Structures** group, click the **Script** button. In the **Script** list choose
**Superscript**:

** 4.5. ** In the base box of script choose .

** 4.6. ** In the upper right box of script enter
* 2*.

** 5. ** In the left of your formula choose **Script** again to
enter * e* in the base box, in the upper right box enter

*and choose again*

**-****Fraction**etc.:

In the * Linear* present:

** 1. ** In your own equation enter * f(x)=1/*.

** 2. ** On the **Equation Tools Design** tab, in the
**Symbols** group, choose or simply * \sqrt*.

** 3. ** In the brackets enter * 2* (or

*), (or*

**\pi***) and*

**\sigma***:*

**^2**Then you enter a space key, this linear formula transformed to the professional format:

** 4. ** Enter * e^(-(x-* (or

*),*

**\mu***, (or*

**)^2/(2***) and then*

**\sigma***:*

**^2))**Then you enter a space key, second part of your linear formula transformed to the professional format: