If you insert a symbol column in word, you need to use the formula editor to enter the formula. For the rest of the environment, I suggest you play sogou Pinyin. Right-click on "Soft Keyboard" and there are many symbols to input.

In OFFICEWORD2003, click the: Insert-) object on the menu bar, select "Microsoft Formula 3.0" in the pop-up dialog box, and then click OK, and a toolbar with advanced mathematical symbols will appear. Click the corresponding symbol to insert it into the word document.