yC20iM
Written on June 24, 2019
% Dans le préambule
% -----------------
\usepackage{multirow}
% -----------------
\begin{tabular}{|c|c|c|} \hline
\multirow{2}{*}{A} & B & C \\ \cline{2-3}
& 2 & 3 \\ \hline
x & y & z \\ \hline
\end{tabular}