[Tex/LaTex] Numbered subsection within unnumbered section

sectioning

How to add numbered subsections with unnumbered subsection in article template? I want the following format

Unnumbered section
   A First numbered subsection
   B Second numbered subsection
   so on.....

Best Answer

The star form of \section generates a section without number. Since the subsection number usually is build with the section number, \thesubsection needs to be redefined:

\documentclass{article}
\renewcommand*{\thesubsection}{\Alph{subsection}}

\begin{document}
\section*{Unnumbered section}
\subsection{First numbered subsection}
\subsection{Second numbered subsection}
\end{document}

Result