Arrays

\begin{array}{ccr}
x^2 & y^2 & \$26.92 \\
\sin(x) & \cos(y) & \$1.29 \\
\mbox{elves} & \mbox{pixies} & \mbox{gnomes}
\end{array}

The out put looks like:

• The {ccr} argument controls alignment
• All lines except the end are terminated with \\
• Fields are separated with &
• Use \mbox to create text boxes in an array