 <p>You can display the <a href="http://www.fileformat.info/info/unicode/char/2609/index.htm" rel="nofollow noreferrer">Unicode character U+2609</a>, which incorporates the circle and the dot in a single character.</p> <p>Since that number 2609 is hexadecimal, you need to convert from hex string to decimal number with <a href="http://es.mathworks.com/help/matlab/ref/hex2dec.html" rel="nofollow noreferrer"><code>hex2dec</code></a>, and then interpret that decimal number as a Unicode character with <a href="http://es.mathworks.com/help/matlab/ref/char.html" rel="nofollow noreferrer"><code>char</code></a>. That character can then be shown on the current axis using <a href="http://es.mathworks.com/help/matlab/ref/text.html" rel="nofollow noreferrer"><code>text</code></a>. It can also be used in figure title, axis labels etc, juyst like any other string.</p> <p>For repeated use, define the character in a variable</p> <pre><code>dotcircle = char(hex2dec('2609')); </code></pre> <p>and then you can use it conveniently. For example:</p> <pre><code>axis([0 1 0 1]) title(['Example with character "' dotcircle '"']) text(.25,.25, dotcircle, 'fontsize',20, 'color',[.3 .3 .3]) text(.5,.5, dotcircle, 'fontsize',40, 'color','r') text(.75,.75, dotcircle, 'fontsize',60, 'color','b') </code></pre> <p><img src="https://i.stack.imgur.com/HeD26.png" alt="enter image description here"></p>