Change one instance of incorrect use of math into \lstinline

chapters/arrays.tex

@@ -309,7 +309,7 @@ \subsection{Specialized Array Constructor Functions}\doublelabel{specialized-arr
 Return the $n_{1} \times n_{2} \times n_{3} \times \ldots$ \lstinline!Integer! array with all elements equal to one ($n_{i} \geq 0$).
 The function needs one or more arguments, that is \lstinline!ones()! is not legal.\\ \hline
 \lstinline[mathescape=true]!fill(s, $n_{1}$, $n_{2}$, $n_{3}$, $\ldots$)! &
-Returns the $n_{1} \times n_{2} \times n_{3} \times \ldots$ array with all elements equal to scalar or array expression $s$
+Returns the $n_{1} \times n_{2} \times n_{3} \times \ldots$ array with all elements equal to scalar or array expression \lstinline!s!
 ($n_{i} \geq 0$). The returned array has the same type as \lstinline!s!.
 Recursive definition:
 \lstinline[mathescape=true]!fill(s, $n_{1}$, $n_{2}$, $n_{3}$, $\ldots$)! =