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Hi !

Well, the title may sound really weird but the issue in itself is simple :

Here you have the lines :
Notons \(B = (\overrightarrow{u_x},\overrightarrow{u_y},\overrightarrow{u_z}) \) et \(B' = (\overrightarrow{u'_x},\overrightarrow{u'_y},\overrightarrow{u'_z}) \)
\end{document}

Here you ...

Hi everyone!

First of all, I'm new on this forum and have a no experience using LaTeX. Therefore I would like to apologize for any mistakes.

That being said, the subject may not be clear enough thus hopelly this will explain everything : I'm trying to do my own two-columned report with LaTeX. The ...