# Left-alignment like Fleqn-option only for specific equations

I want to left-align some equations. (Note: I want to align the equations themselves, not code inside of the equations.)

I have the following example code:

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

\text{I want to left-align this equation}

$$\text{and this one,}$$

$$\text{but not this one and others.}$$

\end{document}


How can I achieve this? The equations don't neccessarily have to be left-adjusted to the left text border, the more important goal is to align them to each other.

-

You can use the flalign and flalign* environments from amsmath.

\documentclass{minimal}
\usepackage{amsmath}
\begin{document}
\noindent The quick brown fox jumps over the lazy dog.
\begin{equation*}
A = B
\end{equation*}
\begin{flalign*}
C = D &&
\end{flalign*}
\begin{flalign*}
E = F &&
\end{flalign*}
\end{document}


Does not work with \split in equation environment

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Thanks a lot, I already had tried flalign, but as I didn't know about the & at the end, it didn't work then... – meep.meep Apr 28 '11 at 11:30

I wanted to show an eplain version:

\input eplain
\leftdisplays
\hbox{I want to left-align this equation} \eqno(1.1)
$$\hbox{and this one,}$$
\centereddisplays
$$\hbox{but not this one and others} \eqno(1.2)$$
\bye


because of the following remark from the documentation:

It is usually poor typography to have both centered and left-justified displays in a single publication, though.

-
I agree with you on that issue. I just want to use this in my appendix. But Thanks for this notice anyway :) – meep.meep Apr 28 '11 at 16:18