Text Formatting ⇒ Referencing Item Numbers

[kapowza]

I have a question about referencing list items. I'm making a question sheet for my students. Some questions are phrased in the form "use the following information for questions 5, 6 and 7"

So, my latex code looks something like this:

Code: Select all

\begin{enumerate}
\item Question one goes here
\item Question two goes here\\
Use the following information for questions 3, 4 and 5. $x = 1$, $y = 2$ and $z = 3$.
\item Question three goes here
\item Question four goes here
\item Question five goes here
\end{enumerate}

Obviously, if I end up adding more questions before questions 3, 4 and 5, then I'd want it to say "use the following for questions 4, 5, and 6"...or whereever those questions end up. So, I'm wondering if there's some way to reference the item numbers in my enumerated list?

[gmedina]

Hi,

you can use the standard \label, \ref mechanism:

Code: Select all

\documentclass{article}

\begin{document}

\begin{enumerate}
  \item\label{ite:fir} First item.
  \item\label{ite:sec} Second item.
  \item\label{ite:thi} Third item.
  \item\label{ite:fou} Fourth item.
  \item\label{ite:fif} Fifth item.
\end{enumerate}

As you can see in items \ref{ite:sec}, \ref{ite:fou} and \ref{ite:fif}...

\end{document}

[kapowza]

Thanks! That's exactly what I was looking for.

[kapowza]

Just a quick followup question:

When I use the label/reference with a nested list, as in:

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\begin{enumerate}
\item Item
\begin{enumerate}[i]
  \item\label{ite:fir} First subitem.
  \item\label{ite:sec} Second subitem.
  \item\label{ite:thi} Third subitem.
\end{enumerate}
\item Next item
\end{enumerate}

As you can see in items \ref{ite:fir}, \ref{ite:sec} and \ref{ite:thi}...

The references include both the original item number and the sublist number. In other words, the references above appear as 9i, 9ii, 9iii. Whereas, I'd like the references to appear as just i, ii, iii. Is there a simple way to do this?

[Juanjo]

Presumably you are loading the enumerate package. Use enumitem instead, as shown below:

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\documentclass{article}
\usepackage{enumitem}

\begin{document}

\begin{enumerate}
\item Item
\begin{enumerate}[label=\roman*]
\item\label{ite:fir} First subitem.
\item\label{ite:sec} Second subitem.
\item\label{ite:thi} Third subitem.
\end{enumerate}
\item Next item
\end{enumerate}

As you can see in items \ref{ite:fir}, \ref{ite:sec} and \ref{ite:thi}...

\end{document}

[localghost]

The enumerate package is superseded by enumitem. Use the latter one and your code will work fine.

Code: Select all

\documentclass[11pt,a4paper,english]{article}
\usepackage[T1]{fontenc}
\usepackage[latin1]{inputenc}
\usepackage{babel}
\usepackage{enumitem}

\begin{document}
  \begin{enumerate}
    \item Item
      \begin{enumerate}[label={\roman*}]
        \item\label{ite:fir} First subitem.
        \item\label{ite:sec} Second subitem.
        \item\label{ite:thi} Third subitem.
      \end{enumerate}
    \item Next item
  \end{enumerate}

  \ref{ite:fir}
\end{document}

Best regards
Thorsten¹