Merge pull request #3403 from HansOlsson/Fix11

Fix11

chapters/arrays.tex

@@ -1447,14 +1447,16 @@ \section{Empty Arrays}\label{empty-arrays}
 \begin{lstlisting}[language=modelica]
 Real[0, m] * Real[m, n] = Real[0, n] // empty matrix
 Real[m, n] * Real[n, 0] = Real[m, 0] // empty matrix
-Real[m, 0] * Real[0, n] = fill(0.0, m, n) // non-empty matrix of zeros
+Real[m, 0] * Real[0, n] = fill(0.0, m, n) // matrix of zeros
 \end{lstlisting}
+Note that \lstinline!fill(0.0, m, n)! will be an empty matrix if \lstinline!m! or \lstinline!n! is zero.
 
 \begin{example}
 \begin{lstlisting}[language=modelica]
-Real u[p], x[n], y[q], A[n, n], B[n, p], C[q, n], D[q, p];
-der(x) = A * x + B * u
-y = C * x + D * u
+  Real u[p], x[n], y[q], A[n, n], B[n, p], C[q, n], D[q, p];
+equation
+  der(x) = A * x + B * u
+  y = C * x + D * u
 \end{lstlisting}
 Assume $\text{\lstinline!n!} = 0$, $\text{\lstinline!p!} > 0$, $\text{\lstinline!q!} > 0$: Results in \lstinline!y = D * u!.
 \end{example}

chapters/connectors.tex

@@ -384,7 +384,7 @@ \section{Generation of Connection Equations}\label{generation-of-connection-equa
 \begin{lstlisting}[language=modelica]
 connect(a, b);
 \end{lstlisting}
-the primitive components of \lstinline!a! and \lstinline!b! form a connection set, together with an indication of whether they are from an inside or an outside connector.
+a connection set is generated for each pair of corresponding primitive components of \lstinline!a! and \lstinline!b! together with an indication of whether they are from an inside or an outside connector.
 \begin{definition}[Primitive elements]\label{primitive-elements}\index{primitive element}\index{element!primitive}
 The primitive elements are of simple types or of types defined as \lstinline!operator record! (i.e., a component of an \lstinline!operator record! type is not split into sub-components).
 \end{definition}

chapters/functions.tex

@@ -875,17 +875,15 @@ \subsection{Automatic Vectorization}\label{scalar-functions-applied-to-array-arg
   = [sin(1), sin(2); sin(3), sin(4)]
 \end{lstlisting}
 \begin{lstlisting}[language=modelica]
-function Add
+function add
   input Real e1, e2;
   output Real sum1;
 algorithm
   sum1 := e1 + e2;
-end Add;
+end add;
 \end{lstlisting}
-\lstinline!Add(1, [1,2,3])! adds one to each of the elements of the second
-argument giving the result \lstinline![2,3,4]!. However, it is illegal to
-write \lstinline!1 + [1,2,3]!, because the rules for the built-in
-operators are more restrictive.
+\lstinline!add(1, [1,2,3])! adds one to each of the elements of the second argument giving the result \lstinline![2,3,4]!.
+For built-in operators one can do this with \lstinline!1 .+ [1,2,3]! but not with \lstinline!1 + [1,2,3]!, because the rules for the built-in operators are more restrictive.
 \end{example}
 
 \subsection{Empty Function Calls}\label{empty-function-calls}