Math & Science ⇒ blackboard braces (.,.) and [.,.] and letter i

[Turkurz]

Hello!

I would like to create a different looking braces (.,.) and [.,.], by making them blackboard, to denote intervals in the real number system, so that they look different from the usual ordered pair (.,.).

I have tried using \mathbb, but it doesn't work. Then I tried the option using the bbm package (suggested in http://www.latex-community.org/forum/vi ... f=5&t=1289), but I get only the normal braces. Same with using the bbold package, and I also get only the normal braces.

Any suggestions?

P.S. I know it can be done, because I have seen it here:
http://tug.ctan.org/pkg/blackboard (the file blackboard.ps)
It would be highly preferrable that the solution is in vector graphics.

[localghost]

[…] I know it can be done, because I have seen it here:
http://tug.ctan.org/pkg/blackboard (the file blackboard.ps)
It would be highly preferrable that the solution is in vector graphics.

Take a look at the source (*.tex) file. You can find it under »Location on CTAN« on the page you linked.


Best regards
Thorsten

[Turkurz]

Hmm, I have loaded the .tex sourcefile and tried to compile it, but failed. It is a very strange document. It doesn't even have a preamble or \begin{document}...\end{document}. How is this supposed to be compiled?

[localghost]

It's a plain TeX document. You could compile it on the command line.

Code: Select all

pdftex blackboard.tex

But this will not be necessary. Take a look at the bbm or bbold package.

[Turkurz]

I have searched the bbold documentation http://tug.ctan.org/tex-archive/fonts/bbold/bbold.pdf and tried this:

Code: Select all

\documentclass{book}
\usepackage[english]{babel}
\usepackage{bbold}


\begin{document}

    $\mathbb{()}$, $\mathbb{[]}$\\
    \textbb{()}, \textbb{[]}\\
    \bbfamily () []
\end{document}

The first option doesn't seem to change the braces. The other two don't make vector graphics, but something ugly and fractured.

Any suggestions?