LaTeX Counters

Everything LaTeX numbers for you has a counter associated with it. The name of the counter is the same as the name of the environment or command that produces the number, except with no \. Below is a list of the counters used LaTeX's standard document styles to control numbering.

part	part	figure	enumi
chapter	subparagraph	table	enumii
section	page	footnote	enumiii
subsection	equation	mpfootnote	enumiv
subsubsection

Here are the commands to be used with counters:

\addtocounter{counter}{value} increments counter by the amount, which can be negative
\alph{counter}, \Alph{counter} print the value of the counter as a lower or upper case letter.
\arabic{counter} print the value of the counter as am arabic number
\fnsymbol{counter} print the counter as a footnote symbol
\newcounter define a new counter
\roman{counter}, \Roman{counter} print the value of the counter as a roman letter using lower or upper case letters
\setcounter{counter}{value} assign the value to the counter
\usecounter{counter} to be used in list environment.
\value{counter} get the value of the counter.

\addtocounter

 \addtocounter{counter}{value}

The command increments the counter by the amount specified by the value argument. The value argument can be negative.

\alph, \Alph

 \alph{counter} \Alph{counter}

This command causes the value of the counter to be printed in alphabetic characters. The \alph command causes lower case alphabetic alphabetic characters, i.e., a, b, c... while the \Alph command causes upper case alphabetic characters, i.e., A, B, C...

\arabic

 \arabic{counter}

The \arabic command causes the value of the counter to be printed in arabic numbers, i.e., 3.

\fnsymbol

 \fnsymbol{counter}

The \fnsymbol command causes the value of the counter to be printed in a specific sequence of nine symbols that can be used for numbering footnotes.

\newcounter

 \newcounter{foo}[counter]

The \newcounter command defines a new counter named foo. The optional argument [counter] causes the counter foo to be reset whenever the counter named in the optional argument is incremented.

\roman, \Roman

 \roman{counter} \Roman{counter}

This command causes the value of the counter to be printed in roman numerals. The \roman command causes lower case roman numerals, i.e., i, ii, iii..., while the \Roman command causes upper case roman numerals, i.e., I, II, III...

\setcounter

 \setcounter{counter}{value}

The \setcounter command sets the value of the counter to that specified by the value argument.

\usecounter

 \usecounter{counter}

The \usecounter command is used in the second argument of the list environment to allow the counter specified to be used to number the list items.

\value

 \value{counter}

The \value command produces the value of the counter named in the mandatory argument. It can be used where LaTeX expects an integer or number, such as the second argument of a \setcounter or \addtocounter command, or in

      \hspace{\value{foo}\parindent}

It is useful for doing arithmetic with counters.

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