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How to make \left, \right pairs of delimiter work over multiple lines?

I would like to type something like this:

\begin{equation}

  \begin{split}

    \left( ba ba ba \\

    ba ba ba \right)

  \end{split}

\end{equation}

But it contains error; I think it's because \left( and \right) should be in the same line. How can I type something like this, but in different lines? I think one of the solution is replaced \left( and \right) by \Big( and \Big). But I am not satisfied with it since \Big( is not "big" enough compared to \left(.

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How about \biggl( ... \biggr) or \Biggl( ... \Biggr)? –  Torbjørn T. Mar 29 '12 at 6:00
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marked as duplicate by Martin Scharrer Apr 3 '12 at 4:54

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2 Answers

up vote 15 down vote accepted

if you want the parentheses of the same height, use \vphantom and a combination of \left( ... \right. \\ \left. ... \right)

\documentclass{article}
\usepackage{amsmath}
\begin{document}

\begin{equation}
    \begin{split}
    \left( \int_1^2 ba ba \mathrm da \right. \\
    \left. ba ba ba \vphantom{\int_1^2} \right)
    \end{split}
\end{equation}

\end{document}

enter image description here

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Try this:

\documentclass{minimal}
\usepackage{amsmath}
\begin{document}

\begin{equation}
    \begin{split}
    \left( ba ba ba \right. \\
    \left. ba ba ba \right)
    \end{split}
\end{equation}

\end{document}

You were right about the fact that the \left and \right should be on the same line.

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7  
This will not give parentheses of the same size if the height of the contents on the two lines is different. –  eldering Mar 29 '12 at 8:56
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