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HansOlsson committed Jan 4, 2022
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Expand Up @@ -360,7 +360,7 @@ \subsubsection{Equations within When-Equations}\label{restrictions-on-equations-
\end{lstlisting}
\end{example}

\subsubsection{Application of the Single-assignment Rule to When-Equations}\label{application-of-the-single-assignment-rule-to-when-equations}
\subsubsection{Single Assignment Rule Applied to When-Equations}\label{application-of-the-single-assignment-rule-to-when-equations}\label{single-assignment-rule-applied-to-when-equations}

The Modelica single-assignment rule (\cref{synchronous-data-flow-principle-and-single-assignment-rule}) has implications for \lstinline!when!-equations:
\begin{itemize}
Expand Down Expand Up @@ -858,7 +858,7 @@ \section{Initialization, initial equation, and initial algorithm}\label{initiali
\end{lstlisting}
\end{example}

\subsection{The Number of Equations Needed for Initialization}\label{the-number-of-equations-needed-for-initialization}
\subsection{Equations Needed for Initialization}\label{the-number-of-equations-needed-for-initialization}\label{equations-needed-for-initialization}

\begin{nonnormative}
In general, for the case of a pure (first order) ordinary differential equation (ODE) system with $n$ state variables and $m$ output variables, we will have $n+m$ unknowns in the simulation problem.
Expand All @@ -883,7 +883,7 @@ \subsection{The Number of Equations Needed for Initialization}\label{the-number-
As noted in \cref{initialization-initial-equation-and-initial-algorithm} a tool may add/remove initial equations to fulfill this requirement, if appropriate diagnostics are given.
\end{example}

\subsection{Recommended selection of start values}\label{recommended-selection-of-start-values}
\subsection{Start value recommended Priority}\label{recommended-selection-of-start-values}\label{start-value-recommended-priority}

In general many variables have \lstinline!start!-attributes that are not fixed and selecting a subset of these can give a consistent set of start values close to the user-expectations.
The following gives a non-normative procedure for finding such a subset.
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