Remove some unintentional paragraph breaks around displayed equations

chapters/operatorsandexpressions.tex

@@ -885,9 +885,9 @@ \subsubsection{homotopy}\label{homotopy}
 possible even without accurate initial guess values, and then by
 continuously transforming the simplified model into the actual model.
 This transformation can be formulated using expressions of this kind:
-
-$$\lambda\cdot\text{actual} + (1-\lambda)\cdot\text{simplified}$$
-
+\begin{equation*}
+\lambda\cdot\text{\lstinline!actual!} + (1-\lambda)\cdot\text{\lstinline!simplified!}
+\end{equation*}
 in the formulation of the system equations, and is usually called
 a homotopy transformation. If the simplified expression is chosen
 carefully, the solution of the problem changes continuously with $\lambda$,
@@ -1007,9 +1007,13 @@ \subsubsection{homotopy}\label{homotopy}
 \end{lstlisting}
 
 The initial equation is expanded into
-$$ 0 = \lambda*\mathrm{der}(x)+(1-\lambda)(x-x_0)$$
+\begin{equation*}
+0 = \lambda*\mathrm{der}(x)+(1-\lambda)(x-x_0)
+\end{equation*}
 and you can solve the two equations to give
-$$ x=\frac{\lambda+(\lambda-1)x_0}{2\lambda-1}$$
+\begin{equation*}
+x = \frac{\lambda+(\lambda-1)x_0}{2\lambda-1}
+\end{equation*}
 which has the correct value of $x_0$ at $\lambda = 0$ and of 1 at $\lambda= 1$, but unfortunately has a singularity at $\lambda = 0.5 $.
 \end{example}
 

chapters/synchronous.tex

@@ -911,8 +911,9 @@ \subsection{Connected Components of the Equations and Variables Graph}\label{con
 \lstinline!e! in E is a subset of V, in general, the unknowns which lexically appear
 in e. There is an edge in F of the graph between an equation, e, and a
 variable, v, if v = incidence(e):
-
-$$F = \{(e, v) : e \in E , v \in \text{incidence}(e)\}$$
+\begin{equation*}
+F = \{(e, v) : e \in E, v \in \text{\lstinline!incidence!}(e)\}
+\end{equation*}
 
 A set of clock partitions is the \emph{connected components} (Wikipedia,
 \emph{Connected components}) of this graph with appropriate definition of