# 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* presentation:

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

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

** 4.2. ** Enter * 2*.

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

In the list of symbols choose:

** 4.4. ** Under **Equation Tools**, on the **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* presentation:

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

** 2. ** Under **Equation Tools**, on the **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:

See also how to create other types of equations.

See also this tip in French: Comment insérer une équation avec des fractions, des racines carrées et des exposants.