General ⇒ Terms beside equations

[rasole]

Hi there,

I need to write the term of my equations beside the equation number, like [Hz] (Eq. 2.20).
The alignment of the equations must not be affected.
Any ideas?

Thanks

[Juanjo]

Is this what you are searching for?

Code: Select all

\documentclass{article}
\usepackage{amsmath}

\makeatletter
\def\tagform@#1{\maketag@@@{(\ignorespaces Eq.~#1\unskip\@@italiccorr)}}
\makeatother

\begin{document}

\begin{gather}
  a=b+c \\
  d=e+f
\end{gather}

\end{document}

[rasole]

Actually no, it's not the Eq.-thing but the [Hz] thing
I'll just attach an example

[Juanjo]

A simple hack could be

Code: Select all

\makeatletter
\def\tagform@#1{\maketag@@@{[Hz]\ (\ignorespaces Eq.~#1\unskip\@@italiccorr)}}
\makeatother

Anyway, this has side-effects if you use \eqref to cite equations. Your query is not clear enough, so perhaps there are bettter ways to proceed. Has [Hz] to appear in all equations? What is really that? By the way, which is the code you used to get the attached jpg? Why that code is not good enough?

[rasole]

The picture is made in MS Paint (shows what I want the final result to look like). I need help designing the code, so a can place such a term, the ['term'], after an equation, as I like.

[Juanjo]

The picture is made in MS Paint (shows what I want the final result to look like). I need help designing the code, so a can place such a term, the ['term'], after an equation, as I like.

OK about the picture, but you should still complete your answer. Does that term vary from equation to equation? Do you require to control it somehow?

[rasole]

Yes I need to supply a different unit to every of my equations. The following code works, but makes errors, why I don't know

Code: Select all

\begin{eqnarray}
	5 &=& 2 + 3 & [unit]
\end{eqnarray}

[localghost]

There is an interesting document you should take a look at [1]. Seems to be written by our member daleif. A search in the forum may yield other suitable results.

[1] The PracTeX Journal - TeX Users Group | Lars Madsen: Avoid eqnarray!


Best regards
Thorsten¹

[rasole]

Sorry, I'm not that good at this yet, so if I could get some kind of example. Maybe it's something about making a 3 column table (not actually a table because of the missing equation number then).

[localghost]

You can get a lot of examples by using the search function of the forum. Use the align environment provided by the amsmath package.

Code: Select all

\begin{align}
  F&=m\cdot a & \text{[Nm]}
\end{align}

Do some basic reading with lshort and l2tabu.