Creating circles around letters in Latex.

If you want to make circle around letters in LATEX you can create your own command using package tikz and use it.

\usepackage{tikz}
\newcommand*\mycirc[1]{%
  \begin{tikzpicture}
      \node[draw,circle,inner sep=1pt] {#1};
   \end{tikzpicture}}
\begin{document}

\mycirc{1}
\mycirc{2}

It will look like :