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\begin{document}

\title{\textbf{Practice Writing}}
\author{Your Name}
\maketitle

\section{Math}
\noindent
Suppose $f(s)=p_0+(1-p_0)s^2$, then
\begin{eqnarray*}
\pi(s)&=&\frac{1}{a(1-2p_0)}\int_0^s \left[\frac{1-p_0}{p_0-(1-p_0)v}-\frac{1}{1-v}\right]dv\\
      &=&-r^{-1}\ln \frac{p_0(1-s)}{p_0-(1-p_0)s}.
\end{eqnarray*}
So,
\begin{equation}
b^{-1}=\lim_{t\rightarrow \infty} e^{rt}Q(t)=\frac{2p_0-1}{p_0}.
\end{equation}

\section{Rice}
\begin{figure}[htb]
\begin{center}
\epsfig{file=fig2.eps,width=5cm}
\end{center}
\caption{\small Mr.Rice}
\end{figure}

\end{document}