2
\documentclass[a4paper,11pt]{book}
\usepackage{hyperref}
\usepackage[lastexercise,answerdelayed,exercisedelayed]{exercise}
\renewcommand{\AnswerName}{Exercise}


\begin{document}
{


\tableofcontents
\mainmatter

\chapter{Classical physics}
\section*{The good old days}
For every $\epsilon>0$
\begin{Exercise}[label={afaff}, name={Exercice}, difficulty={1}]
sfsf
\end{Exercise}
\begin{Answer}
aggsg f
\end{Answer}


\chapter{Modern physics}
\section*{Departure from classical physics}
There exists a $\delta>0$
\begin{Exercise}[label={dghd}, name={Exercice}, difficulty={2}]
b7dyfas789
\end{Exercise}
\begin{Answer}
hjsdgfkihsk 
\end{Answer}


\chapter{Neoclassical physics}
\section{Guess who's back}
\begin{Exercise}[label={NQCD}, name={Exercice}, difficulty={3}]
skjhfkshf
\end{Exercise}
\begin{Answer}
b78asghfkighkia
\end{Answer}


\part{Exercises}
\shipoutExercise

\part{Solutions}
\shipoutAnswer


\end{document}

In the last two parts, the exercises are shown without any reference to the chapters. How can I make them like this:

Chaptername

its exercises

chaptername

its exercises

etc

  • 1
    Welcome to TeX.SX. Another package you could try out is xsim. – Johannes_B Dec 22 '18 at 12:51
  • @Johannes_B It seems good I never used it but I already wrote hundreds of exercises using the exercise package. – Trump Dec 22 '18 at 12:56
  • 1
    Do you mean "customize"? I hope you mean "costumize". – Benjamin McKay Dec 22 '18 at 13:41
  • You can use this answer to get the number of exercises. – Paracosmiste Dec 25 '18 at 12:41
1

Maybe you would like to number to exercises within chapters.

I've used xassoccnt to print the total number of exercises.

I've modified \ExerciseHeader and \AnswerHeader to print the Chapter number and name before its exercises when you ship out them.

\documentclass[a4paper,11pt]{book}
\usepackage[lastexercise,answerdelayed,exercisedelayed]{exercise}
\renewcommand{\ExerciseName}{Exercice}
\renewcommand{\AnswerName}{Exercice}
\usepackage{totcount}
\regtotcounter{Exercise} % register the counter for getting the total
\usepackage{chngcntr}
\counterwithin{Exercise}{chapter}
\counterwithin{Answer}{chapter}
\usepackage{xassoccnt}
\NewTotalDocumentCounter{totalex}
\usepackage{titleref}
\usepackage{etoolbox}
\renewcommand{\ExerciseHeader}{ \stepcounter{totalex}\ifnumcomp{\value{Exercise}}{=}{1}{\ifnumcomp{\thechapter}{=}{1}{}{\vspace{10pt}}\noindent\Large\textbf{Chapter\ \thechapter\ \currenttitle}\par\vspace{10pt}}{}\noindent\normalsize\bfseries\ExerciseName\ \ExerciseHeaderNB\ \ExerciseHeaderDifficulty\par\medskip}
\renewcommand{\AnswerHeader}{\ifnumcomp{\value{Exercise}}{=}{1}{\ifnumcomp{\thechapter}{=}{1}{}{\vspace{10pt}}\noindent\Large\textbf{Chapter\ \thechapter\ \currenttitle}\par\vspace{10pt}}{}\noindent\normalsize\bfseries\AnswerName\ \ExerciseHeaderNB\ \ExerciseHeaderDifficulty\par\medskip}

\usepackage{hyperref}

\begin{document}
This document contains \TotalValue{totalex} solved exercises.

\tableofcontents
\mainmatter

\chapter{Classical physics}
\makeatletter

\makeatother
\section*{The good old days}
For every $\epsilon>0$
\begin{Exercise}[label={afaff}, difficulty={1}]
sfsf
\end{Exercise}
\begin{Answer}
aggsg f
\end{Answer}
\begin{Exercise}[difficulty={2}]
another exercise
\end{Exercise}
\begin{Answer}
another answer
\end{Answer}
\begin{Exercise}[difficulty={1}]
one more exercise
\end{Exercise}
\begin{Answer}
one more answer
\end{Answer}
\chapter{Modern physics}
\section*{Departure from classical physics}
There exists a $\delta>0$
\begin{Exercise}[label={dghd}, difficulty={2}]
b7dyfas789
\end{Exercise}
\begin{Answer}
hjsdgfkihsk 
\end{Answer}

\chapter{Neoclassical physics}
\section{Guess who's back}
\begin{Exercise}[label={NQCD}, difficulty={3}]
skjhfkshf
\end{Exercise}
\begin{Answer}
b78asghfkighkia
\end{Answer}

\part{Exercises}
\shipoutExercise

\part{Solutions}
\shipoutAnswer

\end{document}

enter image description here

enter image description here

  • Thank you. Just one more thing. The exercises are numbered continuously without the chap number. So in this example chap 3 begins with exercise 5. – Trump Dec 30 '18 at 19:08
  • @Trump Have you copied in your doc also these lines usepackage{chngcntr} \counterwithin{Exercise}{chapter} \counterwithin{Answer}{chapter}? – CarLaTeX Dec 30 '18 at 19:13
  • If I add them the exercises are numbered with chapter number. If I remove them the exercises are numbered continuously but only the name of the first chapter appears in the exercises part. – Trump Jan 1 at 17:45
  • @Trump Have you got this line \renewcommand{\ExerciseHeader}{ \stepcounter{totalex}\ifnumcomp{\value{Exercise}}{=}{1}{\ifnumcomp{\thechapter}{=}{1}{}{\vspace{10pt}}\noindent\Large\textbf{Chapter\ \thechapter\ \currenttitle}\par\vspace{10pt}}{}\noindent\normalsize\bfseries\ExerciseName\ \ExerciseHeaderNB\ \ExerciseHeaderDifficulty\par\medskip} in your actual document? – CarLaTeX Jan 1 at 17:48
  • Yes I get this. – Trump Jan 1 at 17:50

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