1. If the formula editor is installed in OFFICE, you can click menu-Insert-Object-Formula, and then click the tool button of the relevant structure, and enter the integer symbol \ fraction \ exponent as needed.
2. If the formula editor is not installed on your computer, you must install it before you can enter mathematical symbols such as integer \ fraction \ exponent.
The specific method is as follows: prepare the OFFICE installation disk, then open word, right-click in the right margin of the title bar of word, click Customize in the pop-up menu, then click the command, click Insert in the command, then find the formula editor in the insert, and hold down the left key to let it open the title bar of the word document. Then you click on this formula editor, prompting you to insert the installation disk. Just follow the prompts. When you want to use it in the future, just click the formula editor.