sample file sect1.tex

The file sect1.tex contains only the contents of Section 1 of the document. The main LaTeX file, MyDoc.tex, inserts the contents of sect1.tex into the document by using the command 
\input set1.tex

A link to the actual file sect1.tex, and some comments about its contents, are at the bottom of this page.

\section{This is the first section}		% file "sect1.tex"

This is the first section.
Below are examples of the three kinds of lists.
(Inspired users can also define their own
``generalized list'' style.)

\subsection{Unnumbered list}

\begin{itemize}
\item These entries are ``itemized''.
\item They are not numbered, just indicated with a ``bullet''
	(a black dot).
\item Entries are separated with a bit of vertical space.
\end{itemize}


\subsection{Numbered list}

The second common kind of list is {\em enumerated}.

\begin{enumerate}
\item These entries are numbered.
\item You would use this kind of list when the order is important,
	or to emphasize the total number of items.
\item Entries are again separated with extra vertical space.
\end{enumerate}


\subsection{Descriptive list}

This kind of list is great for defining
a number of words or expressions,
i.e., for glossaries.
Here are some definitions of the kinds of
mathematical environments
explained in Goldstein \cite{Gold3}
and in \S2.

\begin{description}
\item[Text Formulae]  are usually short formulae (sometimes a
	single variable) which occur within a line of
	text.\footnote{Notice how $x$ looks better than x}

\item[Displayed Formulae] are formulae which are set off from
	the text; they get entire lines of their
	own.\footnote{Naturally, displayed formulae tend
	to be larger than equivalent formulae in text}

\item[Multi-line formulae] are those that are too big to fit
	into one line, or multiple formulae which need to
	be aligned with each other in some
	way.\footnote{Very long equations must be
	broken into separate lines manually}
\end{description}

LINKS

Notice that you don't have to specify numbers when using the macros \section or \subsection or \item or \footnote. LaTeX automatically provides the numbering when you compile the document. Therefore you can insert, delete, or reorder any of these things without worrying about the numbering, because it gets recalculated when you recompile the document.