[Tex/LaTex] Appendix Section Title

Question

I am writing a paper in the "article" document class.

When it proceeds to my appendix, I would like the two sections to have titles to appear as "Appendix A. Some notation" and "Appendix B. Some more notation". So I trited

\appendix                                     
\section{Some notation}
\section{Some more notation}

However, I got "A Some notation" and "B Some more notation" as titles. How can I fix this problem?

I read through old relevant threads, but the answers do not seem to work well.

Answer 1

The title option and the appendices environment of the appendix package can do that:

\documentclass{article}

\usepackage[title]{appendix}

\begin{document}

\section{title 1}
\section{title 2}

\begin{appendices}
\section{Some Notation}

\section{Some More Notation}
\end{appendices}

\end{document}