[texhax] please help with latex

[monika hardy]

A friend is using latex and having trouble - here is his letter- 

 

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

madsmh at gmail.com

 

\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*}

 

Can anyone there help him? - please email him if you can.  Thank you.

 

monika



monk51295 at aol.com
www.netvibes.com/monikahardy
www.monkblogs.blogspot.com/
soul peace

 

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