2

Consider I have a vector x containing different x_i values. I want x to be both blond and have arrow sign on top. But if I use $\vv\textbf{x}}$ the font of x would be different from the fonts of elements,x_i, in the vector.

Question: How can I define a bold vector x that has arrow on top and has the same font as the element x_i

  • 1
    Welcome to TeX.SX. \mathbf instead of \textbf. Are you using esvect package? And I am sure you don't want blond vectors ;-) – user31729 Sep 26 '15 at 14:28
  • What's wrong with blond vectors? ;) – JPi Sep 26 '15 at 14:31
  • @ChristianHupfer Thank you; but even if I use \vv{\mathbf {x}}, its font would be different from x_i. How can I make them both have the same font? – Ay. Sep 26 '15 at 14:33
  • @AdrianAd: Yes, it won't work with \mathbf due to the vector arrow. Didn't thought about that. – user31729 Sep 26 '15 at 14:38
5

\mathbf seems to be wrong for vector symbols, at least in conjunction with esvect package style vectors (\vv) command.

By the way: esvect provides eight different styles of arrows to be selected with \usepackage[a]{esvect} up to \usepackage[h]{esvect}. [d] is default.

\documentclass{article}

\usepackage{mathtools}
\usepackage{bm}
\usepackage{esvect}


\begin{document}


$\vv{\textbf{x}} \longrightarrow$ wrong

$\vv{\mathbf{x}} \longrightarrow$ still wrong

$\vv{\bm{x}} \longrightarrow$ correct


\end{document}

enter image description here

  • @Mico: Package esvect – user31729 Sep 26 '15 at 14:38
2

You want \usepackage{bm} and \vec{\bm{x}}

0

You can use \boldsymbol{x} defined in the amsmath package.

\documentclass{article}

\usepackage{amsmath}

\begin{document}

$$\overrightarrow{\boldsymbol{x}} \rightarrow x_i$$

\end{document}
  • egreg will scold you for using \boldsymbol, I fear – user31729 Sep 26 '15 at 14:43
  • @ChristianHupfer I see there's discussion here tex.stackexchange.com/a/10643/88563 . I'm new, should I delete my answer? – Steve Sep 26 '15 at 14:50

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.