Superscripts and bold dots

Question

If I type

$\boldsymbol{\ddot\xi}^{\,n}$

I get

whereas on removing \boldsymbol and \, I get

How do I get the superscript to appear like this also with \boldsymbol?

Answer 1

You should load the bm package. Compare

\documentclass{article}
\usepackage{amsmath}

\begin{document}

$\boldsymbol{\ddot\xi}^{\,n}$

\end{document}

which gives

with

\documentclass{article}
\usepackage{amsmath,bm}

\begin{document}

$\boldsymbol{\ddot\xi}^{\,n}$

\end{document}

which gives