# Blackboard bold letters

This is a very short question : how do I produce the blackboard bold letters in the second column (the one that reads "Text") of this document? It seems to me that the package eulervm uses the same blackboard bold as the standard math font in Latex, and I would like to replace the standard blackboard bold with that of the linked document.

\documentclass[11pt]{scrartcl}
\usepackage{amsmath, amsfonts, amssymb, amsthm}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\renewcommand{\rmdefault}{pplx}
\usepackage{eulervm}
\usepackage{dsfont}
\begin{document}
I want the blackboard bold letters from the \textit{second} column.
$\mathbb{ABCDEFG}\mathds{ABCDEFG}$
\end{document}

• that is the package documentation for a package called dsfont (so it says in the page you reference, so add \usepackage{dsfont} then use the latex commands shown in the table Sep 15, 2014 at 22:40
• @DavidCarlisle When I use the dsfont package (by adding \usepackage{dsfont} in the preamble), the blackboard bold letters I get in the document correspond to that of the third column. I don't know how to get those of the second column. Sep 15, 2014 at 22:45
• You've been on the site long enough to know that every question should have a complete small document that shows the problem: please edit the question:-) Sep 15, 2014 at 22:47
• \usepackage[sans]{dsfont} (which are not those in the left column, those of the first column resemble the \mathbb from fourier package). Sep 15, 2014 at 22:52
• @Manuel when I use the sans option for the package, I gt a different result. Sep 15, 2014 at 22:54

\documentclass[11pt]{scrartcl}
\usepackage{amsmath,amsfonts,amssymb,amsthm}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\renewcommand*\rmdefault{pplx}
\usepackage{eulervm}
\usepackage[bb=boondox]{mathalfa}
\begin{document}
I want the blackboard bold letters from the \emph{second} column.
$\mathbb{ABCDEFG}$
\end{document}


Instead of boondox you could use fourier, or esstix.

• This does it! Do you have any idea why it doesn't work with mathpi? Sep 15, 2014 at 23:21
• mathpi is not free; of course, is not installed by default (if I remember correctly). Sep 15, 2014 at 23:29

Example from the manual:

\documentclass{article}
\usepackage{dsfont}
\begin{document}
$\mathds{N}=\{0,1,2,\ldots\}$
$\mathds{ABCDEFGHIJKLMNOPQRSTUVWXYZ}$
\end{document}


\documentclass{article}
\usepackage[sans]{dsfont}
\begin{document}
$\mathds{N}=\{0,1,2,\ldots\}$
$\mathds{ABCDEFGHIJKLMNOPQRSTUVWXYZ}$
\end{document}


• Take a look at the comment section, I want a different blackboard bold. Sep 15, 2014 at 23:04
• @OlivierBégassat Indeed. But that was not clear when I posted this.
– cfr
Sep 15, 2014 at 23:23