TeX - LaTeX Stack Exchange is a question and answer site for users of TeX, LaTeX, ConTeXt, and related typesetting systems. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

where one can see a big dot (and circle) over W. I am using \dot{W} and \mathring{W} but seems not big enough.

share|improve this question
up vote 14 down vote accepted
\documentclass{article}
\usepackage{accents}
\begin{document}
$\accentset{\bullet}{b}$
\end{document}
share|improve this answer
1  
This in fact answered another question of mine: How to write a big dot as in the dot product of vectore? The word 'bullet' reminded me! – Host-website-on-iPage Dec 10 '13 at 6:57

You can do the same with the amsmath package command \overset

\usepackage{amsmath} 

$\overset{\bullet}{W}$

see also the thread How to make a larger “\dot” to change the size of the dot.

share|improve this answer
1  
Welcome to TeX.SX! You can have a look at our starter guide to familiarize yourself further with our format. – yo' Jan 15 '15 at 1:41
\documentclass{article}
\usepackage{stackengine}
\renewcommand\useanchorwidth{T}
\newcommand\obullet[1]{\ensurestackMath{\stackon[1pt]{#1}{\mkern2mu\bullet}}}
\newcommand\ocirc[1]{\ensurestackMath{\stackon[1pt]{#1}{\mkern2mu\circ}}}
\begin{document}
$\ocirc{W}\obullet{x}$
\end{document}

enter image description here

If you need it to preserve the math style...

\documentclass{article}
\usepackage{stackengine,scalerel}
\renewcommand\useanchorwidth{T}
\newcommand\obullet[1]{\ThisStyle{\ensurestackMath{%
  \stackon[1pt]{\SavedStyle#1}{\SavedStyle\kern.6\LMpt\bullet}}}}
\newcommand\ocirc[1]{\ThisStyle{\ensurestackMath{%
  \stackon[1pt]{\SavedStyle#1}{\SavedStyle\kern.6\LMpt\circ}}}}
\begin{document}
$\ocirc{W}\obullet{x};
\scriptstyle\ocirc{W}\obullet{x};
\scriptscriptstyle\ocirc{W}\obullet{x}
$
\end{document}

enter image description here

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.