So I'm trying to rotate a basic array:
\begin{array}[b]{*{4}c}\\
& 2 & 3 & 4\\
5 & 6 & 7 & 8\\
\end{array}
But for a particular reason I can't use any packages. (So graphicx, rotating, rotfloat, etc. cannot be used) Is there a way to rotate a box/array with just native latex?
graphicx
is a required part of LaTeX: an installation without it is fundamentally broken. Can you explain the requirements a bit more?