How to prevent a linebreak before align/equation environment in itemize?

Question

The following code

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

\begin{itemize}
\item 
\begin{align}
a&=b\\
&=d
\end{align}
\item 
\begin{equation}
a=b\\
=d
\end{equation}
\end{itemize}

\end{document}

produces

How to avoid the linebreak after the bullet and have the equations (1 and 3) begin on the same line (with the bullet)? I should perhaps emphasize that I want to preserve the numbering of the equations.

I think you want the aligned environment, used as $\begin{aligned}[t]....$ — cmhughes, Jan 11 '16 at 13:59
@cmhughes I've already tried this (sorry, should have mentioned) and it does not preserve the equation numbering, does it? — wondering, Jan 11 '16 at 14:04
looks quite a lot like: http://tex.stackexchange.com/questions/58141/equations-inside-enumerate-aligned-on-items-number — cmhughes, Jan 11 '16 at 16:14
@cmhughes Yes, and an answer is there. What shall I do to connect the two questions? — wondering, Jan 12 '16 at 20:25
@wondering -- if you've identified an answer, you can vote to close your question as a duplicate. i'll start that process. — barbara beeton, Jan 15 '16 at 21:12

John Kormylo · Answer 1 · 2016-01-15T17:12:14.533

3

One can eliminate the \vspace*{-\baselineskip} from the other solution by using \abovedisplayskip=-\baselineskip instead. Note that equation uses \abovedisplayshortskip.

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

\rule{1pt}{43\baselineskip}% force pagebreak

\begin{itemize}% changes below are local to this environment
\abovedisplayskip=-\baselineskip
\belowdisplayskip=0pt
\abovedisplayshortskip=-\baselineskip
\belowdisplayshortskip=0pt
\item\begin{align}
a&=b\\
&=d
\end{align}
\item\begin{equation}
a=b\\
=d
\end{equation}
\end{itemize}

\end{document}

edited Jan 15 '16 at 17:12

answered Jan 11 '16 at 15:08

John Kormylo

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Thank you. However, I still have a problem with the multline environment, for which your solution (and the other, mentioned in the comment by cmhughes) does not work. Sure, it is not mentioned in the question, but if you knew how to deal with it, too, it would be very helpful. – wondering Jan 12 '16 at 21:26
I modified my solution based on the referenced solution and page breaking experiments. – John Kormylo Jan 15 '16 at 17:14

How to prevent a linebreak before align/equation environment in itemize?

1 Answers1

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