General ⇒ create legend over symbols used

[katjag]

I'd like to create a legend over symbols, e.g. containing boxes of different colors and diffent types of arrows. Next to the symbol the description what it means should be.
Is there a possibility to realize this in LaTeX? I thought about using a table or a minipage but I can't manage to include a figure.

[gmedina]

I am not sure I understood your question. The following example uses the \overset command of the amsmath packages to place a box with some information above the usual functional symbol. The example looks ugly, but I only meant it as ... well, an example:

Code: Select all

\documentclass{article}
\usepackage{xcolor}
\usepackage{amsmath}

\begin{document}

text text text 
$\overset{\colorbox{blue}{\parbox{3.7cm}{\centering%
 $A$ is the domain of $f$\\%
 $B$ is the codomain of $f$\\[1em]%
 \colorbox{gray}{\textcolor{red}{Other notation:}}\\[0.5em]%
 $A\xrightarrow{f}B$}}}%
 {f:A\rightarrow B}$
text text text

\end{document}

Anyway, to have extensible arrows, harpoons, hookarrows and sophisticated boxing you can use the packages in the mh bundle. To be able to use color, use the xcolor package; and use the fancybox package for ornamental boxes.

Edit: I added the links to the packages.