\begin{flushleft}
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\vspace*{-4mm}

\begin{alltt}
STk> (define v (vector-int 10)){\em{
\#[undefined]} }
\end{alltt}
\begin{alltt}
STk> (describe v){\em{
\#[\(<\)array\(<\)int*\(>\)\(>\) \#p50da80] is an instance of class \(<\)array\(<\)int*\(>\)\(>\)
Slots are: 
     val = []
\#f} }
\end{alltt}
\begin{alltt}
STk> (vector-fill! v 0){\em{

*** Error:
vector-fill!: not a vector: \#[\(<\)array\(<\)int*\(>\)\(>\) \#p50da80]} }
\end{alltt}
\begin{alltt}
STk> (vector-set! v 1 10){\em{

*** Error:
vector-set!: not a vector: \#[\(<\)array\(<\)int*\(>\)\(>\) \#p50da80]} }
\end{alltt}
\begin{alltt}
STk> (describe v){\em{
\#[\(<\)array\(<\)int*\(>\)\(>\) \#p50da80] is an instance of class \(<\)array\(<\)int*\(>\)\(>\)
Slots are: 
     val = []
\#f} }
\end{alltt}

\vspace*{-5mm}

\hrulefill
\end{flushleft}