Math & Science ⇒ Formular with unit to the right?

[halfling]

Hey

I'm needing help to find an easy way to wright this?



Is there any simple code instead of this code.

Code: Select all

\begin{minipage}[H]{0.9\linewidth}
 \centering
\begin{eqnarray}
\nonumber
\mathscr{R}_1 & \ll & \mathscr{R}_4 \\
\nonumber
&\Updownarrow & \\
\nonumber
\frac{l_1}{\mu_0\cdot\mu_r\cdot A_1} &\ll& \frac{l_4}{\mu_0\cdot\mu_r\cdot A_4} \label{eq:reluctant}
\end{eqnarray}
\end{minipage}
\begin{minipage}[H]{0.1\linewidth}
 \flushright
\begin{eqnarray}
\nonumber
 \left[\Omega\right] \nonumber\\
\nonumber\\
\left[\Omega\right] 
\end{eqnarray}
\end{minipage}

hope some one can help
and thanks

[localghost]

There is a much simpler way to do that, respectively two.

Code: Select all

\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[latin1]{inputenc}
\usepackage{kpfonts}
\usepackage{amsmath}
\usepackage{mathtools}

\parindent0em

% Setup for other tag formats (mathtools)
\newtagform{brackets}{[}{]}

\begin{document}
  \usetagform{brackets}
  \begin{align}
    \mathscr{R}_1 &\ll\mathscr{R}_4 \tag{$\Omega$}\\
    &\;\Updownarrow \nonumber \\
    \frac{l_1}{\mu_0\cdot\mu_r\cdot A_1} &\ll\frac{l_4}{\mu_0\cdot\mu_r\cdot A_4}\tag{$\Omega$}\label{eqn:reluctant}
  \end{align}
  \usetagform{default}
  \begin{align}
    \mathscr{R}_1 &\ll\mathscr{R}_4 &\left[\Omega\right] \\
    &\;\Updownarrow \nonumber \\
    \frac{l_1}{\mu_0\cdot\mu_r\cdot A_1} &\ll\frac{l_4}{\mu_0\cdot\mu_r\cdot A_4}&\left[\Omega\right]\label{eqn:reluctant}
  \end{align}
\end{document}

For more information about such modifications to math expressions refer to the manual of amsmath and mathtools (from the mh bundle). Useful stuff is available with the "Math mode" document.


Best regards and welcome to the board
Thorsten¹

[halfling]

Thanks for the reply but it was not what i was looking for it is not the reference of the equation that i wanted to replaces.

But some thing like this:
EQUATION [UNIT] (REF NR)
A+B = C [A] (1.1)

I know it looks like it on the picture
Me fault that I can't wright the right question!

Thanks for the links it will make the use of amsmath easier.

[localghost]

Take a careful look at the second align environment in the code above. It's exactly what you want. I was not sure what you wanted to have. That's why I introduced two possible solutions. Here's a reduced example.

Code: Select all

\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[latin1]{inputenc}
\usepackage{kpfonts}
\usepackage{amsmath}

\parindent0em

\begin{document}
  \begin{align}
    \mathscr{R}_1 &\ll\mathscr{R}_4 &\left[\Omega\right] \\
    &\;\Updownarrow \nonumber \\
    \frac{l_1}{\mu_0\cdot\mu_r\cdot A_1} &\ll\frac{l_4}{\mu_0\cdot\mu_r\cdot A_4}&\left[\Omega\right]\label{eqn:reluctant}
  \end{align}
\end{document}

[halfling]

I need to have the unit and equation ref as far right as possible on the page
while the equation is center on the page

with the align default option the equation is to the left and the unit is centered between the equation and equation ref

I want

Code: Select all

							EQUATION									[unit] (ref)

align default is

Code: Select all

							EQUATION						[unit] 					(ref)

Hope this helps on what I mean

[gmedina]

Hi halfling,

try adding some horizontal space to the code provided by localghost:

Code: Select all

\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[latin1]{inputenc}
\usepackage[mathscr]{eucal}
\usepackage{amsmath}

\begin{document}

\begin{align}
  \hspace{3.6cm}\mathscr{R}_1 &\ll\mathscr{R}_4 &\hspace{4.3cm}\left[\Omega\right] \\
  &\;\Updownarrow \nonumber \\
  \frac{l_1}{\mu_0\cdot\mu_r\cdot A_1} &\ll\frac{l_4}{\mu_0\cdot\mu_r\cdot A_4}&\left[\Omega\right]\label{eqn:reluctant}
\end{align}

\end{document}

[halfling]

It cut work, but the problem I see by using, this method is that I have to guess how long the horizontal space must be depending on the length of the equation.

But thanks for the suggestion.

[gmedina]

Then use flalign instead of align:

Code: Select all

\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[latin1]{inputenc}
\usepackage[mathscr]{eucal}
\usepackage{amsmath}

\begin{document}

\begin{flalign}
  &&\mathscr{R}_1 &\ll\mathscr{R}_4 &&\left[\Omega\right] \\
  &&&\;\Updownarrow \nonumber \\
  &&\frac{l_1}{\mu_0\cdot\mu_r\cdot A_1} &\ll\frac{l_4}{\mu_0\cdot\mu_r\cdot A_4}&&\left[\Omega\right]\label{eqn:reluctant}
\end{flalign}

\end{document}

[halfling]

Thanks for all the help

The last replay was what I looked for

So my problem is solved

Thanks again