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I've looked through the search but I couldn't find what I specifically want.

I have the following

\begin{equation}
\begin{split}
Very long equation
\end{split}
\end{equation}

Now, I have half a page left where I want to place that equation, but it is a little bit longer. The result is that LaTeX places the formula on the next page. Is there a way so that LaTeX automatically splits the equation over the two pages?

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    Jonas, I've marked up your code by leaving a blank line before the block starts. I've also removed the $ around 'LaTeX': the style we go for here is simply mixed case for TeX, LaTeX, etc.
    – Joseph Wright ♦
    Apr 5, 2011 at 16:19
  • You should consider breaking your formula in two or more pieces and put a line or paragraph with some explanation in-between.
    – Hendrik Vogt
    Apr 5, 2011 at 16:57

1 Answer 1

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Not if you use split. Section 3.9 of the amsmath package documentation says that

Certain equation environments wrap their contents in an unbreakable box, with the consequence that neither \displaybreak nor \allowdisplaybreaks will have any effect on them. These include split, aligned, gathered, and alignedat.

The same section explains how to get the effect you need, using a different environment such as align or multline.

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    Thanks. I see I also need to do: ``\allowdisplaybreaks[1]'' or something like that in the preamble.
    – JT_NL
    Apr 5, 2011 at 16:42
  • @Jonas T - Indeed. I have edited my answer to make it clearer.
    – Ian Thompson
    Apr 5, 2011 at 16:53
  • 2
    Just a clarification: adding \allowdisplaybreaks to the Preamble allows a break to occur anywhere. If you don't want a specific line to be broken, then instead of using \\ to break a line, use \\*.
    – Guilherme Salomé
    Dec 4, 2016 at 15:10

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