# Insert a vertical bar with integration limits into the equation

For example, the ** Newton-Leibnitz formula**:

Sure, you can add the vertical bar and superscript and subscript, but the formula look is not perfect:

To create a good-looking vertical bar with integration limits, do the following:

** 1. ** Add the formula in your document as usual (see
how to add different types of
equations).

** 2. ** In the place, where it is needed, add the vertical
line by typing:

,**\vert**or*\vbar*- use the symbol
**Vertical line**in the keyboard.

** 3. ** Add superscript and subscript as a matrix: under
**Equation Tools**, on the **Design** tab, in the **Structures** group, click the
**Matrix** button. In the **Matrix** list choose **3x1 Empty Matrix**:

- In the top box, type the symbol
,*b* - In the middle box, type the symbol
**space**, - In the bottom box, type the symbol
.*a*

** 4. ** Format the vertical line:

** 4.1. ** Select the vertical line:

** 4.2. ** Under **Equation Tools**, on the **Design**
tab, in the **Conversions** group, click the button **Text** to highlight it:

** 4.3. ** Change the font and its size as you prefer.

See also Adjusting spacing and alignment in an equation to customize the look of integration limits after the vertical line.