If you've upgraded your iPhone's operating system to iOS 11, try this: Go to the calculator app and quickly type 1+2+3. You likely won't get 6. You might get 23, or 24, or 16, or 32, or something else, depending on what buttons you tap and in what order, and, obviously, none of which is the right answer. It seems to be because of a new animation in the calculator app, where a button briefly fades to white when you press it. The result is that if you press an operator button (i.e., the plus sign) before the short animation finishes, the app ignores it. So, 1 + 2 + 3 accidentally gets read as…

\documentclass{beamer}

\begin{document}

\begin{frame}
\begin{figure}
\centering
\begin{minipage}{.48\textwidth}
\centering
\includegraphics[width=\linewidth]{example-image}
\caption{Chua Circuit and the Characteristic function}
\end{minipage}
\begin{minipage}{.48\textwidth}
\centering
\includegraphics[width=\linewidth]{example-image}
\caption{Phase Space of Chua system.}
\end{minipage}
\caption{Chaotic behaviour of Chua circuit.}
\end{figure}
\end{frame}


\end{document}

\documentclass{beamer}

\begin{document}

\begin{frame}{Chua circuit}
\begin{itemize}
\item It is the simplest electronic circuit exhibiting Chaos and many well known bifurcation phenomena.
\end{itemize}
\begin{align*}
\dot{x} &= \alpha (y - m_{1}x -\frac{(m_{0}-m_{1})}{2}(|x+1|-|x-1|))\\
\dot{y} &= x - y + z\\
\dot{z} &= -\beta y \\
\end{align*}
\vskip-0.5cm
\begin{columns}[onlytextwidth,t]
	\begin{column}{.48\linewidth}
		\centering
		\includegraphics[width=.8\linewidth]{example-image}

		Chua Circuit and the Characteristic function