As title says I would like to use MathJax mhchem \pu{}
command in my LaTeX document. FYI it is widely used in chemistry stackexchange for putting units.
But when used I get the error:
Undefined control sequence. … \pu
Missing $ inserted. … \pu{ ….
Extra }, or forgotten $. … \pu{….}
I have included the usepackage command on my preamble:
\usepackage[version=3]{mhchem}
also tried different versions, all same error. I have also tried putting the \pu{...}
with and without $$
.
I would appreciate if you could help me know what is the problem and how I can solve it? maybe you can provide me a working example of \pu{}
command?
Best Answer
You cannot. The
\pu
(physical unit) command is a goodie specific to MathJax/mhchem. It is not part of LaTeX/mhchem.For a LaTeX document, I recommend using the siunitx package. With that, you can achieve document-wide consistency of units.
The reasons to add
\pu
to MathJax/mhchem:\ce
was frequently misused to typeset upright units.\pu
was possible with just a few lines of code.As you see, none of these reasons apply to LaTeX. Therefore, I never considered implementing
\pu
for LaTeX.