If you don’t have Microsoft Word, you can download it for free from the Google Play Store (Android) or App store (iOS).
To see this option on a phone, you will need to tap the pencil icon above the text area to edit the document. Tap the up arrow on the right side of the menu that appears above your keyboard. If you’re using a tablet, the ribbon with Home, Insert, Draw, and Layout appears above the text area.
Click the Script icon to open a drop-down menu. Hover over each button and a tooltip will appear telling you what it is. Select the basic subscript option, and two squares will appear in your equation, one below the other: □□ Click the first square and type in the value you’d like to display: 5□ Click the second square and type in the subscript value: 53
You can also highlight the text in the equation and alter the font size and style as usual.
Click the arrow next to the Equations icon for a drop-down selection of common equations. Click the arrow, then click “Insert New Equation” to type your own. Click the icon itself to open up a larger menu of equation options on the ribbon.
Your text cursor must be at a blank point in the document to access this command. (For example, if you have an existing object selected, this command is greyed out. )
This menu also includes the “save as new equation” command, useful for equations you plan to use frequently. This adds the selected equation to the drop-down menu when you click the arrow next to the Equations icon.
Once you’ve inserted an equation, a small window will open with various symbols. Click these buttons and select the symbol you need to add it to the equation. Word 2003 does not have the same formatting options as later versions. Some equations may look less professional than you’re used to.
Close all Microsoft Office programs. Navigate to Start → Control Panel → Add or Remove Programs. Select Microsoft Office → Change → Add or Remove Features → Next. Click the + symbol next to Office Tools. Select Equation Editor and click Run, then Update. Follow the onscreen instructions. If you’re unlucky, you may need the Word 2003 install CD.
