Open AvalasJT opened 3 years ago
Seems the error does not occur with XeLaTeX, though the \hbar
looks like \hslash
.
Alternatively, if you comment out \pdfglyphtounicode{hbar}{0127}
at line 2086 in the file glyphtounicode.tex the error does not appear, but \hbar
again looks like \hslash
.
Why \hbar
looks like \hslash
has been pointed out before, with both being assigned to U+210F instead of \hbar
being set to something like U+0127, which is empty in some fonts, or the almost identical U+045B.
Looks like another package is be redefining \hbar
. If you use \show\hbar
the log file displays hbar=\protected macro: ->\hslash
, even though amssymb has \hbar and \hslash as being different.
Dear GR8DAN,
thanks for your answer! Actually I already tried to comment out line 2086 in the glyphtounicode.tex file but that didn't change anything for me. I will check again, if I changed by accident the file in my template folder instead of my thesis folder or something like that.
But as that also doesn't change the appearance of \hbar
here is a workaround I found in the meantime which seems to be working for me:
In the main tex file you can use \renewcommand{\hbar}{\mathchar'26\mkern-9mu h}
to get the \hbar
back again. The command has to be placed within the \begin{document}
block.
Best wishes, Jonas
Thanks
Your suggestion (\renewcommand{\hbar}{\mathchar'26\mkern-9mu h}
) did't work in my LaTeX environment (Overleaf), though \def\hbar{\mathit{^^^^0127}}
did (from https://tex.stackexchange.com/questions/448490/hbar-not-displayed-with-fontspec-on-xelatex-lualatex).
FWIW, I'm seeing a variant of this from within LyX. Haven't tracked down the details. Same document worked great 3-4 years ago; I just tried to reexport to PDF and boom, it fails.
Hi everyone,
I've got a strange error when I use "\hbar" in my equations. While compiling I get the error message "Undefined control sequence. [..] \hbar"
amsmath, amsfonts and amssymb are all included as far as I can tell.
The same equations are working with "\hslash" instead of "\hbar" but it looks slightly different.
Although I get the "undefined control sequence"-error I can't define a new command \hbar: "\newcommand{\hbar} {\mathchar'26\mkern-7.5mu h}" results in an error: "Command \hbar already defined. ...ommand{\hbar} {\mathchar'26\mkern-7.5mu h}"
Does anyone know how to solve that issu or had simmilar problems? Thanks and cheers, Jonas