[Tex/LaTex] How to enumerate equations

equationslistsnumbering

I want to enumerate equations in the following way:

An equation is in the same line as the bullet sign.
All equations are align to the left.
The number of an equation is align to the right.

Any suggestions how to make it?

Best Answer

Does this help?

\documentclass{article}
\makeatletter
\newdimen\mymathindent
\newenvironment{bulletequation}%
    {\@beginparpenalty\predisplaypenalty
     \@endparpenalty\postdisplaypenalty
     \refstepcounter{equation}%
     \trivlist \item[]\leavevmode
       \hb@xt@\linewidth\bgroup $\m@th% $
         \displaystyle
         \hskip\mymathindent}%
        {$\hfil % $
         \displaywidth\linewidth\hbox{\@eqnnum}%
       \egroup
     \endtrivlist}
\makeatother
\begin{document}
\begin{itemize}
\item \begin{bulletequation} 1+2=3\end{bulletequation}
\end{itemize}
\end{document}

Related Solutions

[Tex/LaTex] How to number a few equations together

The amsmath package provides the split environment. You can use a split environment inside an align environment or inside an equation environment; a little example:

\documentclass{article}
\usepackage{amsmath}

\begin{document}

\begin{align}
\begin{split}
  a   &= x_{ij} \\
  b_j &= y_j 
\end{split}
\end{align}

\end{document}

enter image description here

[Tex/LaTex] How to write long equation

I would also recommend that you use the align environment, but would recommend that you:

not break lines when you are in brackets if possible
in the cases where it is necessary to break within a brackets to somehow visually indicate that. Here I have used a slightly larger bracket, but perhaps an even larger bracket or a square bracket would be better to allow for easily finding the matching brackets. I have also added extra indentation when this is the case

enter image description here

Notes:

You parenthesis are not balanced. I have a comment in the code to indicate where and have left that as is.
The [showframe] option of the geometry package was used to show where the margins are. So, the code fits within the default width of the article class. This might need to be adjusted based on your text width dimentions.

Code:

\documentclass{article}
\usepackage[showframe]{geometry}
\usepackage{amsmath}

\begin{document}
\begin{align*}
y_{0}
&= (r_{73} + 1)r_{9} 
+ ((r_{73} + 1)r_{93} + r_{73} + 1)r_{108} 
+ ((r_{73} + 1)r_{93} + r_{73} + 1)r_{110}\\
&\quad+ ((r_{73} + 1)r_{93} + r_{73} + 1)r_{98}
+ ((r_{73} + 1)r_{93} + (r_{73} + r_{93})r_{115} + r_{73} +1)r_{123}\\
&\quad+ ((r_{73} + 1)r_{93} + (r_{73} + r_{93})r_{115} + r_{73} + 1)r_{85}\\
% This is a long expression
&\quad+ \big((r_{73} + 1)r_{93} + (r_{73} + r_{93})r_{115} + ((r_{68} + 1)r_{73} 
 + ((r_{68} + 1)r_{73} + r_{68}+ 1)r_{93} \\
&\quad\qquad+((r_{73} + 1)r_{93} + r_{73} + 1)r_{110} + ((r_{68} + 1)r_{73} + (r_{68} + 1)r_{93} + (r_{73} + r_{93})r_{110})r_{115}\\
&\quad\qquad+ r_{68} + 1)r_{131}
+r_{73} + 1\big)r_{88} \\
% -------------------------------------
&\quad+ ((r_{68} + 1)r_{73} % Not sure where this opening ( is supposed to close
+ ((r_{68} + 1)r_{73} + r_{68} + 1)r_{93} \\
% Another long expression:
&\quad+ \big((r_{68}r_{73} + r_{68}
r_{93} + r_{68}r_{73} +r_{68})r_{110} + ((r_{68} + 1)r_{73} + (r_{68} + 1)r_{93} \\
&\quad\qquad+ (r_{68}r_{73} + r_{68}r_{93})r_{110})r_{115} + r_{68} + 1 \big)r_{131}\\
% ----------------------
&\quad+ (r_{15} + r_{36} +r_{48} + r_{6} + r_{61} + r_{7})r_{73} \\
%
% Another long expression:
&\quad+ \big((r_{73} + r_{93})r_{108} + (r_{73} + r_{93})r_{110}
+ (r_{73} + r_{93})r_{98} + (r_{15} +r_{36} + r_{48} + r_{6} + r_{61} + r_{7})r_{73} \\
&\quad\qquad+ (r_{15} + r_{36} + r_{48} + r_{6} + r_{61} + r_{7} + r_{9})r_{93} \\
&\quad\qquad+ r_{73}r_{9} + 1\big)r_{115} \\
% -----------------------------------------------
% Another long expression:
&\quad+ \big((r_{73} + 1)r_{9} 
+ (r_{15} + r_{36} + r_{48} + r_{6} + r_{61} + r_{7})r_{73}
+ r_{15} + r_{36} + r_{48} + r_{6} + r_{61} + r_{7} + 1\big)r_{93}\\
% -----------------------------------------------
% Rest are single terms so we can break them anywhere
&\quad+r_{103} + r_{11} + r_{113} + r_{12} + r_{128} + r_{14} + r_{15}
+ r_{20} + r_{36} + r_{41} + r_{48} + r_{53} + r_{6} + r_{61} + r_{66}\\
&\quad+ r_{7} + r_{90}
\end{align*}
\end{document}

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