From f7b4d405ee50e950b9d062a1a5ea6ba638061a34 Mon Sep 17 00:00:00 2001
From: HOS <Hans.Olsson@3ds.com>
Date: Fri, 7 Jul 2023 14:05:52 +0200
Subject: [PATCH] Add example.

---
 chapters/arrays.tex | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/chapters/arrays.tex b/chapters/arrays.tex
index 5da79766c..f8d65169e 100644
--- a/chapters/arrays.tex
+++ b/chapters/arrays.tex
@@ -976,6 +976,10 @@ \section{Indexing}\label{array-indexing}\label{indexing}
 v[{j, k}] := {2, 3}; // Same as: v[j] := 2; v[k] := 3;
 v[{1, 1}] := {2, 3}; // Same as: v[1] := 3;
 \end{lstlisting}
+Array indexing of general expression:
+\begin{lstlisting}[language=modelica]
+(a*a)[:, j]    // Vector of the j'th column of a*a
+\end{lstlisting}
 If \lstinline!x! is a vector, \lstinline!x[1]! is a scalar, but the slice \lstinline!x[1:5]! is a vector
 (a vector-valued or colon index expression causes a vector to be returned).
 \end{example}