Introduced in modelica#3217

Just typo.

chapters/equations.tex

@@ -414,7 +414,7 @@ \subsubsection{Single Assignment Rule Applied to When-Equations}\label{applicati
 \begin{lstlisting}[language=modelica]
 model WhenPriorityAlg
   Boolean close;   // Correct model: close defined by two when-statements!
-algoritmh
+algorithm
   $\ldots$
   when condition2 then
     close := false;