How to protect text from being split by a float?

Question

Given following situation:

\begin{figure}[ht!]
    ...
\end{figure}
\begin{equation}
    ...    
\end{equation}
Some one-line text.
\begin{eqnarray}
    ...
    ...
\end{eqnarray}

how can I make sure that the float doesn't get placed between the equation and the equation array? Also the part to protect goes over two pages, if that's of any importance.

Answer 1

• The placeins package gives the command \FloatBarrier, which will make sure any floats will be put in before this point.

• The flafter package ensures that floats don't appear until after they appear in the code.

This means that you could use something like:

\usepackage{placeins} % put this in your pre-amble
\usepackage{flafter}  % put this in your pre-amble

...
\begin{figure}[ht!]
...
\end{figure}
\FloatBarrier % new bit
\begin{equation}
...    
\end{equation}
Some one-line text.
\begin{eqnarray}
...
...
\end{eqnarray}
% with the flafter package, this figure won't appear before this point
\begin{figure}[ht!]
...
\end{figure}

On another note, you might like to see this post: \eqnarray vs \align