[Tex/LaTex] Vector with boldface and a hat on top

Question

Could one of you help me on how to get the following: I need a boldface vector with a hat on top, something like the vector with boldface and a hat as below:

${\mathbf \hat{p}}$ or $\bm{\hat{p}}$

Both the above mentioned methods do NOT seem to work.

Answer 1

• If you want just the letter "p" to be rendered in bold while the "hat" symbol should be rendered in normal weight, you could use either one of the following methods:

  $\hat{\mathbf{p}}$,  $\hat{\bm{p}}$
  

  

  Which method you should use depends on whether you want the letter "p" in upright-bold or slanted-bold.

• If both the letter "p" and the "hat" symbol should be typeset in bold, and the letter "p" should be in slanted-bold form, one of the following methods gets the job done.

  $\boldsymbol{\hat{p}}$, $\bm{\hat{p}}$
  

  

• Finally, if you need the hat symbol to be bold and the letter "p" to be in upright-bold rather than in slanted-bold, try

  $\boldsymbol{\hat{\mathbf{p}}}$
  

  

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The full MWE:

\documentclass{article}
\usepackage{bm} % for \bm macro
\begin{document}
$\hat{\mathbf{p}}$ \quad  $\hat{\bm{p}}$ 

$\boldsymbol{\hat{p}}$ \quad $\bm{\hat{p}}$

$\boldsymbol{\hat{\mathbf{p}}}$
\end{document}