Stub vectors and classifications of various lengths---% as well as the means of producing arbitrary lengths---% are provided for convenience and testing.

Ten n-vectors with each element containing the value~$0$ are provided.

Sequence n-vectors are of length~$n$ and have a sequence of values from~$0$ to~$n-1$.

Ten n-classes generated from the respective n-vectors are provided.

\ref{_n-vector_} generates vector constants of length~$n$ where each element is assigned the provided value (or~$0$ if unspecified).