enumerate with non-standard numbering (1°, 2°, …)

Question

How can I get a list environment with numbers 1°, 2°, ...? LaTeX does not accept the symbol °.

Answer 1

Try a customization by the enumitem package and the textcomp package.

\documentclass[11pt]{article}
\usepackage[T1]{fontenc}
\usepackage{enumitem}
\usepackage{textcomp}

\begin{document}
  \begin{enumerate}[label={\arabic*\textdegree}]
    \item First
    \item Second
  \end{enumerate}
\end{document}

---

Addendum: With the right input encoding you can also insert ° directly.

\documentclass[11pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{enumitem}
\usepackage{textcomp}

\begin{document}
  \begin{enumerate}[label={\arabic*°}]
    \item First
    \item Second
  \end{enumerate}
\end{document}

Answer 2

The easiest way to obtain this would be to specify your enumerate label as \arabic*$^\circ$ via the enumitem package:

\documentclass{article}
\usepackage{enumitem}% http://ctan.org/pkg/enumitem
\begin{document}
\begin{enumerate}[label=\arabic*$^\circ$]
  \item Here is an item
  \item Here is another item
  \item This is the last item
\end{enumerate}
\end{document}​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

Other alignment options are also available, if needed. A similar output is obtained via the enumerate package's label specification 1$^\circ$:

\documentclass{article}
\usepackage{enumerate}% http://ctan.org/pkg/enumerate
\begin{document}
\begin{enumerate}[1$^\circ$]
  \item Here is an item
  \item Here is another item
  \item This is the last item
\end{enumerate}
\end{document}​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​