1. Go to Add or Remove Programs in Control Panel, find the installed Office2003 entry in the window, and then click the Change button to the right of the entry.

2. In the dialog box that opens, click Add or Remove Features, and then click Next. In the "New" dialog box, select the item "Select advanced customization of application".

3. in the list bar of the dialog box, expand "Office tools->; Formula Editor ",click Run all programs from this computer, and then click the Update button to install the formula editor tool.

Second, edit the formula in PPT.

1, enter PPT, and click "Insert->; Object ",in the dialog box that opens, find and click" Microsoft Formula 3.0? . Open the Formula Editor window. In the upper part of the window, various formula symbols are listed, and the formula editing area is below.

2. Click on a mathematical symbol, and the specific symbol type will be expanded for selection.

3. Enter or insert numbers and symbols in the dashed box in the formula editing area. ......

4. After editing the formula, click Menu-> Menu on the formula editor window. Exit and return to the presentation ",and the formula will be inserted into the current slide. The position and size of the formula can be adjusted.