my question is how to enter a multiline equation (or several equations on different lines) in a box of a latex table. I have the table made as follows:
\begin{table}[h]
\begin{center}
\begin{tabular}{|c|c|c|}
Casilla 1 & Casilla 2 & Casilla 3 \\ \hline
Casilla 4 & Casilla 5 & Casilla 6 \\ \hline
\end{tabular}
\end{center}
\end{table}
I have tried with "multiline", "gather", "align" and it gives me an error. However, outside the table it does not give me any error. I hope you help me with my problem. Thank you very much.