[texhax] SIunitx

Joseph Wright joseph.wright at morningstar2.co.uk
Mon Sep 14 17:47:38 CEST 2009

Mads Munch Hansen wrote:
> Hello, I am having problems with the following bit of code. when I
> compile the document, LaTeX complains that \SI is an undefined control
> sequence and points to the line above \end{equation*}. I have been
> unable to pinpoint the source of the problem, and would be gratefull for
> any assistance.
> Thanks, Mads
> \begin{equation*}
> c_\text{Al} = \frac{\SI{0,150}{\kilo\gram}\cdot
> \SI{4180}{\joule\per\kilo\gram\per\kelvin} \cdot
> (\SI{25,2}{\celsius} - \SI{23,5}{\celsius})} {\SI{0,018}{\kilo\gram})\cdot
> (\SI{100}{\celsius} - \SI{25,2}{\celsius})}
> \end{equation*}

The following works for me:

c_\text{Al} = \frac{\SI{0,150}{\kilo\gram}\cdot
\SI{4180}{\joule\per\kilo\gram\per\kelvin} \cdot
(\SI{25,2}{\celsius} - \SI{23,5}{\celsius})} {\SI{0,018}{\kilo\gram})\cdot
(\SI{100}{\celsius} - \SI{25,2}{\celsius})}
Joseph Wright

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