How can I write a bold version of the reduced Planck constant, `\hbar`?

Question

I've tried \mathbf{\hbar}, \boldmath{\hbar}, and \boldsymbol{\hbar}, but none of them produce a bold version of the symbol.

Welcome to TeX.SE. Possible duplicate of How do i write ħ in LaTeX, for the reduced Planck constant?. Those seem to work for me. Can you post a fully compilable MWE including \documentclass and the appropriate packages that reproduces the problem. — Peter Grill, Jun 18 '16 at 01:57
It depends on the fonts you are using. Without an MWE no one can help you — Yan Zhou, Jun 18 '16 at 06:49

score 4 · Answer 1 · answered Jun 18 '16 at 07:04

I guess you did the wrong attempts, because \boldsymbol works. However, it's better \bm (needs the bm package to be loaded after amsmath).

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

\begin{document}

$\hbar\ne\bm{\hbar}$

\end{document}

If you are using Times based fonts with \usepackage{mathptmx}, then no attempt can be successful, because the package doesn't support bold math symbols. If that's the case, do

\usepackage{newtxtext,newtxmath}

instead of \usepackage{mathptmx}.

Thanks, the \includepackage{bm} worked. Trying \usepackage{newtxtext,newtxmath} led me down a long dark path that I finally abandoned. — Lee Duke, Jun 20 '16 at 01:39

How can I write a bold version of the reduced Planck constant, `\hbar`?

1 Answers1