[Tex/LaTex] Align definition of variables of an equation right (not next to the equation)

alignamsmathequations

this question has been asked before but I never saw a "perfect" solution for this problem.

I use the equation block for my equations and I want the definition of the variables to show at the right, next to the equation number, not next to the equation. I have managed this (by accident) for two of my equations that stand together in one align block.

\begin{align}
f(n) &= 8,199 \times 10^{-6} n + 8,418 & \{n \in \mathbb{N}\} \label{equ:Laufzeit} \\
t_e &\leq \frac{t_i}{5} & \{t_e \in \mathbb{Q}^+\},\;\{t_i \in \mathbb{N}\;|\;5f(n) \leq t_i \leq +\infty\} \label{equ:MinInterval}
\end{align}

But for my other equation i can't make it work…I think it would look "cleaner" if they would all align right

\begin{equation}
t_e \leq \frac{t_i}{5} \quad \{t_e \in \mathbb{Q}^+\},\;\{t_i \in \mathbb{N}\} \label{equ:MaxAusführungszeit}
\end{equation}

Its just a style thing so not that urgent but I would like to know if there is a sulution.

Tanks 🙂

Best Answer

You can try with flalign

\documentclass{article}
\usepackage{amsmath,amssymb}

\begin{document}

\noindent Some equations:
\begin{flalign}
&& f(n) &= 8,199 \times 10^{-6} n + 8,418 & \{n \in \mathbb{N}\} \label{equ:Laufzeit} \\
&& t_e &\leq \frac{t_i}{5} & \{t_e \in \mathbb{Q}^+\},\;\{t_i \in \mathbb{N}\;|\;5f(n) \leq t_i \leq +\infty\} \label{equ:MinInterval}
\end{flalign}

\begin{flalign}
&& t_e \leq \frac{t_i}{5} && \{t_e \in \mathbb{Q}^+\},\;\{t_i \in \mathbb{N}\} \label{equ:MaxAusführungszeit}
\end{flalign}

\end{document}

Related Solutions

[Tex/LaTex] List of equations, including equation contents and caption

Since you want a cheat sheet, I'd recommend the extract package. With a slightly different MWE:

\documentclass{article}
\usepackage[
  active,
  header=false,
  copydocumentclass=true,
  generate=\jobname-Cheatsheet,
  extract-env={equation},
  extract-cmdline={synopsis},
  ]{extract} % http://ctan.org/pkg/extract
\begin{extract*}
% Items executed in both the main and extracted document
% (extract manual, section 5.1)
\usepackage{amsmath}
\end{extract*}
\begin{extract}
% Items executed only in extracted document
\def\synopsis#1{#1}
\end{extract}
\def\synopsis#1{}
\begin{document}
First Euler observed that
\synopsis{Euler's equation tying together the five fundamental constants of mathematics}%
\begin{equation}
1 + e^{i \Pi} = 0.
\end{equation}

Then, Gauss discovered the normal distribution:
\synopsis{Normal distribution}%
\begin{equation}
P(x) = \frac{1}{{\sigma \sqrt {2\pi } }}e^{{{ - \left( {x - \mu } \right)^2 } \mathord{\left/ {\vphantom {{ - \left( {x - \mu } \right)^2 } {2\sigma ^2 }}} \right. \kern-\nulldelimiterspace} {2\sigma ^2 }}}
\end{equation}

Finally, Einstein proclaimed: 
\synopsis{Equivalence of mass and energy}%
\begin{equation}
E = m C^2
\end{equation}
\end{document}

you get an original document of:

enter image description here

and an extracted document of:

\documentclass{article}
% Items executed in both the main and extracted document
% (extract manual, section 5.1)
\usepackage{amsmath}
% Items executed only in extracted document
\def\synopsis#1{#1}

\begin{document}

\synopsis{Euler's equation tying together the five fundamental constants of mathematics}%

\begin{equation}
1 + e^{i \Pi} = 0.
\end{equation}

\synopsis{Normal distribution}%

\begin{equation}
P(x) = \frac{1}{{\sigma \sqrt {2\pi } }}e^{{{ - \left( {x - \mu } \right)^2 } \mathord{\left/ {\vphantom {{ - \left( {x - \mu } \right)^2 } {2\sigma ^2 }}} \right. \kern-\nulldelimiterspace} {2\sigma ^2 }}}
\end{equation}

\synopsis{Equivalence of mass and energy}%

\begin{equation}
E = m C^2
\end{equation}

\end{document}

and:

enter image description here

This also works with your original \caption command.

[Tex/LaTex] Align equations within one line

The posted code does not have the spacing shown, but generates errors due to the blank lines, this version runs without error

\documentclass[]{scrbook}
\usepackage[fleqn]{amsmath}
\usepackage{amssymb}

\begin{document}
%\setlength{\mathindent}{0cm}

\begin{subequations}\label{eq:MINLP}

   \begin{align}
     \min &\sum_{j=1}^{NE}(y_{j}-V_{1,j})^{2} 
     \tag{\ref{eq:MINLP}}\\
     \mathrm{s.t.} \quad & f_{j,k}(V_{n,j},V_{2n,j},V_{2n+1,j}) \le
     M_{n,j,k}^{\mathrm{up}}(1-\delta_{n,k}) && n \in \mathcal{N}_{b},\,
     k \in  \mathcal{F},\, j \in \mathcal{E} \\
     & f_{j,k}(V_{n,j},V_{2n,j},V_{2n+1,j}) \ge M_{n,j,k}^{\mathrm{lo}}
    (1-\delta_{n,k}) && n=a+b 
   \end{align}
\end{subequations}
\end{document}

Best Answer

Related Solutions

[Tex/LaTex] List of equations, including equation contents and caption

[Tex/LaTex] Align equations within one line

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