1

The conditional appears in the center of the line, I would like to left align the conditional. I have tried quite a few things and ultimately settled on the following. Is there a way to left align the entire conditional for the whole line so it is aligned with more text?

\documentclass{article}

\usepackage{amsmath, array}

\begin{document}

$M( \langle U_1, \dots, U_n \rangle ) \to \langle Y_1, \dots, Y_n \rangle $ where

\[
Y_i = 

\begin{cases}

1 & \text{if }  U_i \in \Sigma \\

0 & \text{if }  U_i \notin \Sigma \\

\end{cases}

\]

More text

\end{document}

enter image description here

  • Welcome to TeX.SX! You should consider using an align (or similar) environment ;-) – user31729 Jun 21 '15 at 19:36
1

One can replace \[ with \par\medskip\( and replace \] with \)\par\medskip. Not necessary in this case, but one may also need a \displaystyle added after the \(. Depending on your value of \parindent, a \noindent may also be needed.

\documentclass{article}
\usepackage{amsmath, array}
\begin{document}
$M( \langle U_1, \dots, U_n \rangle ) \to \langle Y_1, \dots, Y_n \rangle $ where
\par\medskip\(
Y_i = 
\begin{cases}
1 & \text{if }  U_i \in \Sigma \\
0 & \text{if }  U_i \notin \Sigma \\
\end{cases}
\)\par\medskip
More text
\end{document}

enter image description here

0

You could use the flalign environment and put every equation between two &. Add \nonumber or \notag if you don't want your equations numbered.

\documentclass{article}
\usepackage{amsmath}
\usepackage{array}
\usepackage{lipsum}

\begin{document}
    \lipsum[2]

    \begin{flalign} 
        &M( \langle U_1, \dots, U_n \rangle ) \to \langle Y_1, \dots, Y_n \rangle \qquad \text{where} & \nonumber \\ 
        &Y_i = \begin{cases}
            1 & \text{if }  U_i \in \Sigma \\
            0 & \text{if }  U_i \notin \Sigma \\
        \end{cases} & \nonumber
    \end{flalign}

    \lipsum[2]
\end{document}

enter image description here

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