TeX - LaTeX Asked by AYBRXQD on January 17, 2021
I’m writing a book that includes some chapters. In some chapters, it’s needed to prepare one or more appendices. Preparing a code for this style is simple as follows
documentclass{book}
usepackage{appendix}
usepackage{lipsum}
begin{document}
tableofcontents
chapter{one}
lipsum[4-10]
chapter{two}
lipsum[4-10]
begin{appendices}
chapter{app2.1}
lipsum[4-10]
chapter{app2.2}
lipsum[4-10]
end{appendices}
chapter{three}
begin{appendices}
chapter{app3.1}
lipsum[4-10]
end{appendices}
chapter{four}
lipsum[4-10]
chapter{five}
lipsum[4-10]
begin{appendices}
chapter{app5.1}
lipsum[4-10]
chapter{app5.2}
lipsum[4-10]
end{appendices}
end{document}
As is clear, the appendices are Appendix A, Appendix B, and so on, regardless of the chapter number. But I want to rename them according to the chapter number such as Appendix 2.A, Appendix 2.B, Appendix 3.A, and so on. How shall I change the code?
To make appendices behave that way, you should be using subappendices and sections.
documentclass{book}
usepackage{appendix}
usepackage{lipsum}
begin{document}
tableofcontents
chapter{one}
lipsum[4-10]
chapter{two}label{test}
lipsum[4-10]
begin{subappendices}
section{app2.1}
lipsum[4-10]
section{app2.2}
lipsum[4-10]
end{subappendices}
chapter{three}
begin{subappendices}
section{app3.1}
lipsum[4-10]
end{subappendices}
chapter{four}
lipsum[4-10]
chapter{five}
lipsum[4-10]
begin{subappendices}
section{app5.1}
lipsum[4-10]
section{app5.2}
lipsum[4-10]
end{subappendices}
end{document}
This version uses etoolbox to modify the appendices package.
documentclass{book}
usepackage{appendix}
usepackage{etoolbox}
usepackage{lipsum}
makeatletter
patchcmd{l@chapter}{setlength@tempdima{1.5em}}{setlength@tempdima{2.3em}}{}{1}
pretocmd{appendices}{edefcurrentchapter{thechapter}setcounter{@ppsaveapp}{0}}{}{2}
apptocmd{appendices}{renewcommand{thechapter}{currentchapter.Alph{chapter}}}{}{3}
makeatother
begin{document}
tableofcontents
chapter{one}
lipsum[4-10]
chapter{two}label{test}
lipsum[4-10]
begin{appendices}
chapter{app2.1}
lipsum[4-10]
chapter{app2.2}
lipsum[4-10]
end{appendices}
chapter{three}
begin{appendices}
chapter{app3.1}
lipsum[4-10]
end{appendices}
chapter{four}
lipsum[4-10]
chapter{five}
lipsum[4-10]
begin{appendices}
chapter{app5.1}
lipsum[4-10]
chapter{app5.2}
lipsum[4-10]
end{appendices}
end{document}
Correct answer by John Kormylo on January 17, 2021
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