LaTeX 图片插入

一般格式：

 egin{figure}
        centering
        includegraphics[scale=0.2]{Figure211.png}
        caption{In the case of a Gaussian distribution, with θ
corresponding to the mean $mu$, the regression
function illustrated in Figure 2.10 takes the form
of a straight line, as shown in red. In this
case, the random variable z corresponds to the
derivative of the log likelihood function and is
given by $(x-mu_{ML})/sigma^2$, and its expectation that
defines the regression function is a straight line
given by $(mu-mu_{ML})/sigma^2$. The root of the regression
function corresponds to the maximum likelihood
estimator $mu_{ML}$.}
    end{figure}

若是Figure.eps，则需要在文件前导入两个包：

documentclass{beamer}
usepackage{graphicx}
usepackage{epstopdf}