equationspage-breaking
I have a series of equations steps, about 20 lines or so. I would like to have it automatically decide page break when necessary, but it resists and always tries to stay in a whole page, rendering the previous page a lot of while space.
I tried \allowdisplaybreaks and \displaybreak, but doesn't seem to work.
{\allowdisplaybreaks\begin{equation}\allowdisplaybreaks[4]
\begin{split}\allowdisplaybreaks
\alpha\beta\gamma&=abc\\
=def\\
=ghi\\
\end{split}
\end{equation}}
none of the 3 approaches seem to work
That is a bad sentence. Do you get any errors?
Here is an example of the documentation of amsmath with split
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{equation}\label{e:barwq}
\begin{split}
H_c&=\frac{1}{2n} \sum^n_{l=0}(-1)^{l}(n-{l})^{p-2}
\sum_{l _1+\dots+ l _p=l}\prod^p_{i=1} \binom{n_i}{l _i}\\
&\quad\cdot[(n-l )-(n_i-l _i)]^{n_i-l _i}\cdot
\Bigl[(n-l )^2-\sum^p_{j=1}(n_i-l _i)^2\Bigr].
\end{split}
\end{equation}
\end{document}
As already pointed out by @David Carlisle, you should not put a longtable into a figure environment. Here is the new code. I had to change the width for not knowing what you used there. Just change it back. I also switched off the commands in the caption.
% arara: pdflatex
\documentclass{article}
\usepackage{longtable}
\usepackage[%
,demo
]{graphicx}
\begin{document}
\begin{longtable}{l l}
\endfirsthead
{{\bfseries \tablename\ \thetable{} -- continued from previous page}} \\
\endhead
\endfoot
\endlastfoot
\textbf{a)} & \textbf{b)} \\
\includegraphics[width=5cm]{images/FAs1} & \includegraphics[width=5cm]{images/FAs2}\\
\textbf{c)} & \textbf{d)} \\
\includegraphics[width=5cm]{images/FAs3} & \includegraphics[width=5cm]{images/FAs4}\\
\textbf{e)} & \textbf{f)} \\
\includegraphics[width=5cm]{images/FAs5} & \includegraphics[width=5cm]{images/FAs6}\\
%
\newpage
%
\textbf{g)} & \textbf{h)} \\
\includegraphics[width=5cm]{images/FAs7} & \includegraphics[width=5cm]{images/FAs8}\\
\textbf{i)} & \textbf{j)} \\
\includegraphics[width=5cm]{images/FAs9} & \includegraphics[width=5cm]{images/FAs10}\\
\caption{Fatty acids found in %\nig in \wt and \crt % commented out for not knowing what that is.
}
\label{fig:FAs}
\end{longtable}
\end{document}
Best Answer
From page 6 of the amsmath manual:
Put differently, use an
alignenvironment -- along with something like\allowdisplaybreaks.Personally I always try to break up long sequences of equations with a few words or sentences.