removed android screenshot

problemexpres.tex

@@ -52,7 +52,7 @@ $$P = U_{RMS} \cdot I_{RMS} \cdot cos\,\varphi$$
 where P is the real power in watts, $U_{RMS}$ is the \gls{rms} voltage, defined as $U_{peak}/\sqrt{2}$ in volts, $I_{RMS}$ is the RMS current, defined as $I_{peak}/\sqrt{2}$ in amperes and $\varphi$ is the impedance phase angle - phase difference between voltage and current.
 
 \textbf{Reactive power} on the other hand, is the power that is wasted and not used to do work on the load. Curiously, it is defined as 
-$$Q = U_{RMS} \cdot I_{RMS} \cdot ,sin\,\varphi$$
+$$Q = U_{RMS} \cdot I_{RMS} \cdot sin\,\varphi$$
 with $Q$ being the reactive power in volt-ampere-reactive [var].
 
 \textbf{Apparent power} is the power that is supplied to the circuit. Definition:
@@ -155,18 +155,18 @@ An \gls{os} is a \gls{computer} \gls{program} that supports a \gls{computer}'s b
 Over time, a lot of embedded \glspl{os} suited for embedded \glspl{system} were developed. An embedded \gls{os} is a type of \gls{os} that is embedded and specifically configured for a certain \gls{hw} configuration. \Gls{hw} that uses embedded \gls{os} is designed to be lightweight and compact, forsaking many other functions found in non-embedded (i.e. desktop) \gls{computer} \glspl{system} in exchange for efficiency at resource usage \cite{holt2014embedded}. This means that they are made to do specific tasks and do them efficiently. Notable embedded \glspl{os} currently in use by consumers include:
 
 \begin{itemize}
-	\item \textbf{Embedded \Gls{linux}} - used in many other devices like printers, \glspl{router} or smart TVs; \Gls{android} \ref{f:android_scr} is a derivative of embedded \Gls{linux}
+	\item \textbf{Embedded \Gls{linux}} - used in many other devices like printers, \glspl{router} or smart TVs; \Gls{android} is a derivative of embedded \Gls{linux}
 	\item \textbf{iOS} - subset of Mac \gls{os} X, used in Apple’s mobile devices Palm \gls{os}
 	\nopagebreak
 	\item \textbf{Windows Mobile} - Microsoft's \gls{os} for mobile devices
 \end{itemize}
 
 
-\begin{figure}[ht!]
-\centering
-\includegraphics[width=.4\textwidth,angle=0]{android_scr}
-\caption{The \Gls{android} 5 (Lollipop) screenshot - the most common \gls{os} is among the embedded ones}\label{f:android_scr}
-\end{figure}
+%\begin{figure}[ht!]
+%\centering
+%\includegraphics[width=.4\textwidth,angle=0]{android_scr}
+%\caption{The \Gls{android} 5 (Lollipop) screenshot - the most common \gls{os} is among the embedded ones}\label{f:android_scr}
+%\end{figure}
 
 
 \subsection{Real-time operating system}