# Insert an Equation

You add an equation to your topic by inserting a mathml element.

- In the Content Library, double-click a topic.
- Put your cursor at the location where you want to insert the equation and on the toolbar, click the square root button .The system inserts the equation editor with an example equation (a+b).
- Edit the equation by doing the following:
- Click the example equation and select Edit in the context menu.
- In the equation editor, edit the equation as needed.Tip: You can hand write an equation by clicking . Return to the main equation editor interface by clicking .
- Click Save.The equation editor closes and you see your equation in the topic.

- Click the example equation and select Edit in the context menu.