[Tex/LaTex] Tikzpicture horizontal curly brace

amsmathaxisdrawtikz-pgf

enter image description here

I got the axis. I did it with \begin{tikzpicture}.
How do I draw this curly brace?

Best Answer

\documentclass[border=3pt,tikz]{standalone}
\usetikzlibrary{decorations.pathreplacing}

\begin{document}

\begin{tikzpicture}
\draw[very thick,-{latex}] (0,0) -- (6,0) node[below]{$x$};
\foreach \x/\l in {1/-r,3/{},5/+r}
  \draw (\x,3pt) -- (\x,-3pt) node[below]{$x_0\l$};
\draw [decorate,decoration={brace,amplitude=5pt,mirror,raise=4ex}]
  (1,0) -- (5,0) node[midway,yshift=-3em]{Konvergenzbereich};
\end{tikzpicture}

\end{document}

enter image description here

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