Hello everyone,
I just started using LaTeX and I have an issue with the \mathbb command. Letters work just fine, but when I am trying to use double-struck numbers, e.g. with \mathbb{1}, this character
shows up instead of the blackboard bold number 1. I did find out I can circumvent this by creating combining the characters "1" and "I" to make somewhat of a double-struck "1", but I would still like to know what is going wrong when I use \mathbb.
Any help would be appreciated.
Fonts & Character Sets ⇒ Blackboard bold numbers; trouble with \mathbb
Blackboard bold numbers; trouble with \mathbb
Last edited by Stefan Kottwitz on Fri Jan 20, 2012 12:58 am, edited 1 time in total.
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- Stefan Kottwitz
- Site Admin
- Posts: 10340
- Joined: Mon Mar 10, 2008 9:44 pm
Blackboard bold numbers; trouble with \mathbb
Welcome to the board!
\mathbb (of amsfonts) supports only letters, not digits. You could use bbm:
Or dsfont:
Stefan
\mathbb (of amsfonts) supports only letters, not digits. You could use bbm:
Code: Select all
\documentclass{article}
\usepackage{bbm}
\begin{document}
\[
\mathbbm{1}
\]
\end{document}
Code: Select all
\documentclass{article}
\usepackage{dsfont}
\begin{document}
\[
\mathds{1}
\]
\end{document}
LaTeX.org admin
Re: Blackboard bold numbers; trouble with \mathbb
Thanks for the quick response.
I have a follow-up beginner's question right away: Is there an easier way of installing dsfont in MiKTeX than figuring out by myself where to put the individual files, as the documentation suggests? As it appears to me the dsfont package cannot be installed via the package manager in MiKTeX.
I have a follow-up beginner's question right away: Is there an easier way of installing dsfont in MiKTeX than figuring out by myself where to put the individual files, as the documentation suggests? As it appears to me the dsfont package cannot be installed via the package manager in MiKTeX.
- localghost
- Site Moderator
- Posts: 9202
- Joined: Fri Feb 02, 2007 12:06 pm
Blackboard bold numbers; trouble with \mathbb
Search the package list in the MiKTeX Package Manager (MPM) for the doublestroke package and install it.299792458 wrote:[…] I have a follow-up beginner's question right away: Is there an easier way of installing dsfont in MiKTeX than figuring out by myself where to put the individual files, as the documentation suggests? As it appears to me the dsfont package cannot be installed via the package manager in MiKTeX.
Thorsten
How to make a "Minimal Example"
Board Rules
Avoidable Mistakes
¹ System: TeX Live 2025 (vanilla), TeXworks 0.6.10
Board Rules
Avoidable Mistakes
¹ System: TeX Live 2025 (vanilla), TeXworks 0.6.10