The equation keyboard can be used, when answering an open question or a mathematical equation question, to create mathematical equations. This is made available via the **Equation** button in the rich content editor or the **New Equation** button.

## Access the keyboard

When you want to add a mathematical equation to an open question, click on the **Equation** button. The equation keyboard will then open up. Click on the buttons to create your equation or use your keyboard to type.

When you answer a mathematical equation question, the keyboard will become available when you click on the **New Equation** button as shown below.

You can also use LaTeX in order to insert an equation in the answer field. You can do so by inserting two dollar signs ($$) before and after the desired equation. You can find an example below.

## Insert a custom matrix

The equation editor has a menu to insert a custom matrix, which can be opened by right-clicking on the equation field. Here you can create a matrix and select the number of rows and columns. You can also choose the preferred borders, such as parentheses or brackets. After the matrix is selected, you can add and remove rows and columns by right clicking the matrix.

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