1

Is there a way to add a chapter such that instead of incrementing the chapter number it takes the previous one and adds a letter suffix to it?

Reason being that I have a set of notes for a course I'm teaching. I already have printed some chapters for students and wish now to insert an additional chapter for this semester in the correct place, without disturbing the existing numbering.

\chapter{First original chapter}
% Numbered as Chapter 1

\chapter{Added chapter}
% I want this chapter to be Chapter 1A or 1a etc.

\chapter{Second original chapter}
% Numbered as Chapter 2
  • Do you need it to work with a table of contents, or merely with the chapter layout? – Steven B. Segletes Sep 25 '19 at 20:14
1

Nesting the additional chapter in an additional environment does it:

\documentclass{book}

\newenvironment{additional}
{\addtocounter{chapter}{-1}\renewcommand{\thechapter}{ \arabic{chapter}A}}
{}

\begin{document}

\chapter{First original chapter}
\begin{additional}
\chapter{Added chapter}
% I want this chapter to be Chapter 1A or 1a etc.
\end{additional}
\chapter{Second original chapter}
% Numbered as Chapter 2

\end{document} 
  • Very clever!!!! – Steven B. Segletes Sep 25 '19 at 20:20
  • Very clever indeed! Thank you! – Peadar Sep 25 '19 at 20:45

Not the answer you're looking for? Browse other questions tagged or ask your own question.