I am trying to set a counter chapter with float like this :
\setcounter{chapter}{2.3}
I am getting this error alc Error: `.' invalid at this point.
[Tex/LaTex] set counter chapter with float
chaptersfloats
Related Solutions
Package aliascnt can be used for aliasing the counter. It also takes care for the other companion macros of a counter (e.g.\the<counter> or \theH<counter> for hyperref). Therefore the following example uses the class book for a more complicate counter. \newaliascnt is called before \newfloat, because then \newfloat detects the new "counter" and does not assign a counter register.
The line \addtocounter{equation}{-1} can be automated by adding it to \caption inside environment eqfloat.
\documentclass[a4paper]{book}
\usepackage[margin=25pt, labelfont=bf]{caption}
\usepackage{amsmath, amsfonts, pifont, float, color, url}
\usepackage[pdftex, plainpages=false, pdfpagelabels,
bookmarks=true]{hyperref}
\usepackage{aliascnt}
\newaliascnt{eqfloat}{equation}
\newfloat{eqfloat}{h}{eqflts}
\floatname{eqfloat}{Equation}
\newcommand*{\ORGeqfloat}{}
\let\ORGeqfloat\eqfloat
\def\eqfloat{%
\let\ORIGINALcaption\caption
\def\caption{%
\addtocounter{equation}{-1}%
\ORIGINALcaption
}%
\ORGeqfloat
}
\begin{document}
\chapter{Test}
\begin{eqfloat}
\begin{equation}
E = mc^2
\end{equation}
\caption{Equation caption here.}
\label{eq:example}
\end{eqfloat}
See \ref{eq:example}.
\end{document}
A proposition:
- Don't use floating figures, remove
\begin{figure}...\end{figure}around the graphics and caption - Use
captionpackage and\captionof{figure}{foo text}instead of standard\captioncommand - Redefine the figure output command
\thefigureto obtain the\thetheorem.\arabic{figure}output - (Optional) Use a resetting of figure counter by theorem, i.e.
@addtoreset{figure}{theorem}If this is not wanted, just comment that line
\documentclass{book} % can't use thesis.cls here, since unknown!!!
\usepackage{caption}%
\usepackage[demo]{graphicx}%
\usepackage{amsthm}%
\newtheorem{theorem}{Theorem}[section]
\newtheorem{corollary}[theorem]{Corollary}
\newtheorem{definition}[theorem]{Definition}
\newtheorem{lemma}[theorem]{Lemma}
\newtheorem{proposition}[theorem]{Proposition}
\theoremstyle{definition} %Added by me
\newtheorem{example}[theorem]{Example}
%\makeatletter %Added by me
%\let\c@theorem\c@figure
%\makeatother
\makeatletter
\@addtoreset{figure}{theorem}
\makeatother
\let\StandardTheFigure\thefigure
\renewcommand{\thefigure}{\thetheorem.\arabic{figure}}
\begin{document}
\chapter{My first chapter}
\section{The very first section}%
\begin{theorem}
\( E = m c^2 \)
\end{theorem}
\begin{center}
\includegraphics{somefig}
\captionof{figure}{The Figure}
\end{center}
\begin{theorem}
\( E^2 = p^2 c^2 + \left({m c^2}\right)^2 \)
\end{theorem}
\begin{center}
\includegraphics{somefig}
\captionof{figure}{Another figure}%
\end{center}
\end{document}
Best Answer
Counters only accept integers values, so try this:
Or