35 lines
1.1 KiB
TeX
35 lines
1.1 KiB
TeX
\documentclass{article}
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\usepackage{tikz}
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\usetikzlibrary{arrows}
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\usetikzlibrary{snakes}
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\usepackage{verbatim}
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\tikzstyle{mybox} = [draw=red, fill=blue!20, very thick,
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rectangle, rounded corners, inner sep=10pt, inner ysep=20pt]
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\begin{document}
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\begin{tikzpicture}[scale=1.2]
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%\begin{tikzpicture}[scale=3]
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%\draw[step=0.1, color=lightgray] (-1,-1) grid(4.5,4.5);
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%\draw[help lines] (-3,-1) grid (4,1);
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\draw [thick](-2.5,0) -- (3.5,0);
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\draw [thick, style=dotted](3.5,0) -- (4,0);
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\draw [thick, style=dotted](-3,0) -- (-2.5,0);
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\foreach \x/\xtext in {-2/x_2,0,1, 3/x_1}
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\draw[xshift=\x cm, thick] (0pt,1pt) -- (0pt,-1pt) node[below,fill=white]
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{$\xtext$};
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\draw[snake=brace, mirror snake, color=blue] (-2,-0.4) -- (0,-0.4) node[midway,sloped,below] {$|x_1|$};
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\draw[snake=brace, mirror snake, color=red] (0,-0.4) -- (3,-0.4) node[midway,sloped,below] {$|x_2|$};
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% \foreach \x in {1,2,3}
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% \draw (\x cm,1pt) -- (\x cm,-1pt) node[anchor=north] {$\x$};
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\end{tikzpicture}
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\end{document} |