A question on cross-reference

Question

Suppose I have several sections in my document. How may I cross-reference to a section so that it is updated if I make more sections?

Answer 1

Just create a label for the referenced section(s), and then refer to it (them) from anywhere else. LaTeX will automatically change the references if new sections are added. E.g.,

\section{The Referred Section}
\label{sec:mysectionlabel} % or whatever unique label you wish to use

% ... 

\section{Another Section}
\label{sec:anotherseclabel}  % only if you need to refer to this one also

As we mentioned in \S \ref{sec:mysectionlabel} above, ...