1. Open the word application on the computer, find the formula option in the upper right corner of the interface, and click Open.

2. In the jumped formula editor interface, insert brackets outside the matrix.

3. Insert rows and columns in it, click, and a matrix dialog box will appear, where we can enter the number of rows and columns.

4. In the matrix interface of the jump, enter the relevant parameters of the matrix.

5. Then enter the numbers in the matrix diagram.