\dot{o} \ddot{o} and so on, should do the trick. Edit: For more than two dots, e.g. \dddot{o}, you need the package amsmath, which allows you a maximum of 4 dots \ddddot{o} (not strikingly beautiful ) For higher dot derivatives take a look at this post Dec 16, 2015 · Open your document in Google Docs, and put your cursor where you want to put a symbol. Click Insert>Special Characters from the Google Docs menu. 2. Google has tons of special characters to choose from, and finding what you need can be difficult. A simple shortcut is to draw the symbol into the box below the search bar. Google will show you ... Nov 30, 2014 · To put a tilde over a letter, we can use either \tilde or \widetilde. As for which one to use in which situation, compiling a document with the following as its part can help comparison. To put a bar over a letter, we can use either \bar or \overline. It seems that \bar is to \overline what \tilde is to \widetilde. Aug 10, 2016 · This article will show you how to add a dot or line over a number in a Word document to indicate a repeating decimal. Type your number first, then go to the Insert tab and look for the Symbol section to the right: Click on the little down arrow below Symbol Anxiety heart rate 130.