siunitx
I'm using the package siunitx for unit-typesetting.
In particular I wanted this expression:
\SI[per=frac,fraction=nice]{2}{\celsius\per\kilo\metre}
unfortunately I get many errors like:
siunitx error: version-1-option
version 1 option 'per' detected
Similarly for fraction
Without the option part it works:
\SI{2}{\celsius\per\kilo\metre}
I'm thinking that is because I'm not using latin but utf8 (inputenc) encoding, but not sure?!
Any advice?
You can also set the number parsing off temporarily.
\documentclass{article}
\usepackage{amsmath,siunitx}
\begin{document}
\begin{align}
\begin{split}
s &= \frac{d}{t}\\
&= \frac{\SI{1.15}{m}}{\SI{1.43}{s}}\\
&= \SI[parse-numbers=false]{0.\overline{804195}}{m/s}
\end{split}
\end{align}
\end{document}
(If you need a quick solution, load the option version-1-compatibility;
\usepackage[version-1-compatibility]{siunitx}
However, since the new version of siunitx, the following is more appropriate:)
Just declare the unit by yourself as described on page 39 in the manual.
\documentclass{article}
\usepackage{siunitx}
\DeclareSIUnit\gauss{G}
\begin{document}
$\SI{3}{\gauss}$
\end{document}
The loadable special units are not longer available: see the manual for an explanation of why.
Edit
To provide all the hep functionality you may type:
% High energy physics
\DeclareSIUnit\micron{\micro\metre}
\DeclareSIUnit\mrad{\milli\rad}
\DeclareSIUnit\gauss{G}
\DeclareSIUnit\eVperc{\eV\per\clight}
\DeclareSIUnit\nanobarn{\nano\barn}
\DeclareSIUnit\picobarn{\pico\barn}
\DeclareSIUnit\femtobarn{\femto\barn}
\DeclareSIUnit\attobarn{\atto\barn}
\DeclareSIUnit\zeptobarn{\zepto\barn}
\DeclareSIUnit\yoctobarn{\yocto\barn}
\DeclareSIUnit\nb{\nano\barn}
\DeclareSIUnit\pb{\pico\barn}
\DeclareSIUnit\fb{\femto\barn}
\DeclareSIUnit\ab{\atto\barn}
\DeclareSIUnit\zb{\zepto\barn}
\DeclareSIUnit\yb{\yocto\barn}
Best Answer
The names of options in
siunitxchanged a lot between versions 1 and 2, and you are using the names from version 1, while you have version 2 installed. In version 2.x ofsiunitxyou should useper-mode=fraction, notper=frac. Similarly you should usefraction-function=\sfracinstead offraction=nice.\usepackage{xfrac}is also required.(Addendum: clemens points out in a comment below that the
niceoption may have been referring to thenicefracpackage and its\nicefracmacro. The output is similar, if you prefernicefrac, use\usepackage{nicefrac}instead of loadingxfrac, and usefraction-function=\nicefrac.)The manual can be found at for example: http://texdoc.net/texmf-dist/doc/latex/siunitx/siunitx.pdf