Bruce Watson bruce2 at mun.ca
Wed Jan 28 19:01:41 CET 2009

I am trying to get Mike Piff's answers.sty working with multicol. The
snippet below the signature will illustrate the problem.

Basically, I can't make answers.sty hyphenate the exercise numbers. For
example, the answer number corresponding to exercise number 3-1 is
listed as 31; that is, it won't seem to print the hyphen.

The author of answers.sty is no longer at the email address in the
package. If anyone has a solution to this I'd appreciate it.

Thanks.  bruce2.

--
=================================================
Bruce Watson - Dept of Mathematics and Statistics
Memorial University, St. John's,NF, Canada A1C5S7
(709)737 8793    http://www.math.mun.ca/~bruce2
=================================================

\documentclass[12pt]{book}
\usepackage{amsfonts} \usepackage{amsmath} \usepackage{amssymb}
\usepackage{multicol} \usepackage{enumerate}

\Newassociation{sol}{Solution}{ans}

\begin{document}

\pagenumbering{arabic}
\setcounter{page}{1}
\Opensolutionfile{ans}[anstest]

\chapter{Introduction}

The first chapter here

\section{Exercises}
\begin{enumerate}
\item  First question here.

\item Second question here.

\item   Find the derivative of each function.
\begin{multicols}{2}
\begin{enumerate}[\theenumi-1]
\item $f(x)= x5-4$
\begin{sol}
$\displaystyle 5x4$
\end{sol}

\item $f(x) = x4 \sin3 (x)$
\item $f(x) = \frac{x2 + 4}{x2 - 20}$
\begin{sol}
$\displaystyle -\frac{48x}{(x2-20)2}$
\end{sol}
\item $f(x) = \frac{\sin x}{1 + \cos x}$
\item $f(x) = \frac{\sin x}{1 + \cos x}$
\item $f(x) =(1+x)3(1-x)2$

\end{enumerate}
\end{multicols}
\end{enumerate}

\Closesolutionfile{ans}
\vskip .1 in
\newpage