[OS X TeX] Using align with "or"

Bruno Voisin bvoisin at me.com
Sun Apr 17 21:56:09 CEST 2011


Le 17 avr. 2011 à 21:48, Lee D. Witt a écrit :
> Have you tried "alignat"? You specify the number of "columns" to align. If you want to align n columns use 2n-1 &s
> 
\begin{alignat}{5}
u      &=0 & \quad\text{or}\quad  && u+4    &=0  & \quad\text{or}\quad  && u-4    &=0 \\
u      &=0 &&&                       u      &=-4 &&&                       u      &=4 \\
\log x &=0 &&&                       \log x &=-4 &&&                       \log x &=4
\end{alignat}

Bruno

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