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Sectioning
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Sectioning commands provide the means to structure your text 
into units. 

	\part ::part::
	\chapter (report and book class only) ::chapter:: 
	\section ::section::
	\subsection ::subsection::
	\subsubsection ::subsubsection::
	\paragraph ::paragraph::
	\subparagraph ::subparagraph::

All sectioning commands take the same general form, i.e., 

	\chapter[optional]{title} 

In addition to providing the heading in the text, the 
mandatory argument of the sectioning command can appear in 
two other places: 

	1. The table of contents
	2. The running head at the top of the page 

You may not want the same thing to appear in these other 
two places as appears in the text heading. To handle this 
situation, the sectioning commands have an optional 
argument that provides the text for these other two 
purposes. 

All sectioning commands have *-forms that print a title, 
but do not include a number and do not make an entry in the 
table of contents. 
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	\appendix ::appendix::
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The \appendix command changes the way sectional units are 
numbered. The \appendix command generates no text and does 
not affect the numbering of parts. 

The normal use of this command is something like 

\chapter{The First Chapter}
...
\appendix
\chapter{The First Appendix}