Math & Science ⇒ Maths and enumerate

[jonathan webley]

I'm trying to format a very long enumerated list (over a 100 items). Some of the items are several lines of only text but others are just maths. However, if I use a maths environment such as flalign, vertical space is inserted and the maths does not start on the same line as the item number.

The same thing happens if I use a table.

Is there a way of formatting the list so that the maths starts on the same line as the item number?

Code: Select all

\documentclass{article}
\usepackage{amsmath, amssymb}
\begin{document}
\begin{enumerate}
	\item inline maths: $a=b$
	\item  \begin{flalign*}
         & \text{Since} & 2y &= 4x & \\
         &              &  y &= x \\
         \end{flalign*}
\end{enumerate}

\begin{tabular}{r l}
1. & inline maths: $a=b$ \\
2. & {\begin{flalign*}
        & \text{Since} & 2y &= 4x & \\
        &              &  y &= x \\
      \end{flalign*}}
\end{tabular}
\end{document}

[localghost]

You have to operate in in-line math mode. But the flalign* environment is a displayed one. Some modifications will do the trick.

Code: Select all

\documentclass{article}
\usepackage{amsmath}
\begin{document}
  \begin{enumerate}
    \item inline maths: $a=b$
     \item $\begin{aligned}
              & \text{Since} & 2y &= 4x & \\
              &              &  y &= x
            \end{aligned}$
  \end{enumerate}

  \begin{tabular}{rl}
    1. & inline maths: $a=b$ \\
    2. & $\begin{aligned}
            & \text{Since} & 2y &= 4x & \\
            &              &  y &= x
          \end{aligned}$
  \end{tabular}
\end{document}

Best regards and welcome to the board
Thorsten

[jonathan webley]

That's a good solution, thanks. However, the item number is centered vertically with regard to the item content. Is is possible so that the top line of the item content is aligned with the item number?

[Stefan Kottwitz]

Hi Jonathan,

Is is possible so that the top line of the item content is aligned with the item number?

yes, just use the optional parameter t:

Code: Select all

\begin{aligned}[t] ...

Stefan

[jonathan webley]

Thanks! That works really well and gives the great looking output we expect from LaTeX.