# Vectors and ClassicThesis (with eulermath)

Normaly I use ClassicThesis with the eulermath option. When I started to use vectors, I redefined the standard command as

\renewcommand{\vec}{\mathbf}


The problem is that that the letter written whit mathbf is completely different to the letter written in eulermath. How can I fix this problem?

This is a MWS:

\documentclass[%
10pt,%
a4paper,%
onside,%
footinclude,%
BCOR5mm,%
{scrartcl}

\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}

\usepackage[french]{babel}

\usepackage{amsmath}

\renewcommand{\vec}{\mathbf}

\usepackage[%
nochapters,%
beramono,%
eulermath,%
pdfspacing,%
listings]%
{classicthesis}

\author{Author}
\title{Test}
\date{}

\begin{document}

\maketitle

As you can see, there is a big difference:
$a \neq \vec{a}$

\end{document}

-
You get bold Euler with \mathbold: Section 4.1.3 in the documentation of eulervm. –  egreg Oct 4 '12 at 21:55

The eulermath option loads the eulervm package, which distinguishes the standard \mathbf command from its own command \mathbold which uses Euler Bold.

\renewcommand{\vec}{\mathbold}


If you want a redefinition that's independent of the eulermath option, you can say

\ifthenelse{\boolean{@eulermath}}
{\renewcommand{\vec}{\mathbold}}
{\renewcommand{\vec}{\mathbf}}


Sorry for the non spaced colon, but I can't stand it. :)

-
Thank you! =). (The spaced colon is obtained with french option in babel package... ;) ). –  R. M. Oct 5 '12 at 6:00

\mathbf is the math access for the text bold font.

If you load bm package after the euler fonts are set up you can use \bm as shown above .

\documentclass[%
10pt,%
a4paper,%
onside,%
footinclude,%
BCOR5mm,%
{scrartcl}

\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}

\usepackage[french]{babel}

\usepackage{amsmath}

\renewcommand{\vec}{\mathbf}

\usepackage[%
nochapters,%
beramono,%
eulermath,%
pdfspacing,%
listings]%
{classicthesis}

\usepackage{bm}
\author{Author}
\title{Test}
\date{}

\begin{document}

\maketitle

As you can see, there is a big difference:
$a \neq \vec{a} \bm{a}$

\end{document}

-