General ⇒ \mathbb{1} not working

[hanfmampf]

Hi guys,

I figured that unfortunately \mathbb{} is not working with numbers as input. Does anyone know how to produce a comparable result? I already did some inquiery on this subject, but to no avail...

I would be glad if someone could help me!

[gmedina]

Hi,

you can try loading the bbm package. A little example:

Code: Select all

\documentclass{article}
\usepackage{amsmath}
\usepackage{bbm}

\begin{document}

$\mathbbm{1}$

\end{document}

[hanfmampf]

It works, thank you for your help!

Meanwhile a friend could help me as well and he suggested to use \mathds{}. Now I must decide which one i like better xD.

[Stefan Kottwitz]

Hi,

usually I prefer the doublestroke package with

Code: Select all

\usepackage{dsfont}
...
$\mathds{R}, \mathds{1}$

at least the number 1 is available, it's frequently used as a symbol. Have a look at blackboard.ps , it demonstrates some blackboard bold typefaces, you will find also numbers there.

Stefan