latex 使用中的一些问题

一. 关于LaTeX中插入图像时常见的问题

1. visio中画的图转成eps格式：将visio中画的图保存为emf格式，然后在用软件metafile2eps转成eps格式

2. MATLAB中画的图可以直接save as为eps格式

3. LaTeX中应该包含包usepackage{epstopdf}

二. LaTeX直接画图时

1. 画图命令egin{picture} (x,y)    end{picture}

 例如：

setlength{unitlength}{0.5cm}
egin{picture} (10,17)
put(4.5,12) {
egin{tabular}{| c | c | c | c | c |}
hline color{green}{$ullet$} & color{green}{$ullet$} & color{green}{$ullet$} & color{green}{$ullet$} & color{green}{$ullet$} \
hline color{green}{$ullet$} & color{blue}{$ullet$} & color{blue}{$ullet$} & color{blue}{$ullet$} & color{green}{$ullet$} \
hline color{green}{$ullet$} & color{blue}{$ullet$} & color{red}{$ullet$} & color{blue}{$ullet$} & color{green}{$ullet$} \
hline color{green}{$ullet$} & color{blue}{$ullet$} & color{blue}{$ullet$} & color{blue}{$ullet$} & color{green}{$ullet$} \
hline color{green}{$ullet$} & color{green}{$ullet$} & color{green}{$ullet$} & color{green}{$ullet$} & color{green}{$ullet$} \
hline
end{tabular}
}
put(1,4) {
$
mathbf{t}(x) = egin{array}{rl}
left ( egin{array}{cc}
& color{red} {ullet} \
sortuparrow & left ( enewcommand{arraystretch}{0.3}
egin{array}{c}
color{blue} {ullet}\
color{blue} {ullet}\
color{blue} {ullet}\
color{blue} {ullet}
end{array} ight ) \
sortuparrow & left (
enewcommand{arraystretch}{0.3}
egin{array}{c}
color{green} {ullet}\
color{green} {ullet}\
color{green} {ullet}\
color{green} {ullet}
end{array}
ight )
end{array}
ight )
& egin{array}{l}
x_{0,0} \ {x_{1,i}}_i \ {x_{2,i}}_{i}
end{array}
end{array}$}
end{picture}

PS：今日自己绘图时，始觉绘图之艰辛，小作者为学之严谨精心，倍受鼓舞。