20 lines
552 B
TeX
20 lines
552 B
TeX
\begin{tikzpicture}
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% draw axis
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\draw[thick, ->] (-3cm, 0cm) -- (3cm, 0cm) node[anchor=south] (ascissa) {$\Re z$};
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\draw[thick, ->] (0cm, -3cm) -- (0cm, 3cm) node[anchor=east] (ordinata) {$\Im z$};
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% draw isolated point
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\draw[fill] (-1.5cm, 1.1cm) circle (2pt) node[anchor=south west] (w) {$w$};
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% draw closed loops
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\draw[dotted, -latex] (-0.9cm, 1.1cm) arc (0:360:0.6cm);
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% draw the names of the paths (use $\mathcal{C}$ instead of $\ccC$ if it does not compile)
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\node (c0) at (-2.1cm, 0.3cm) {$\ccC_{(w)}$};
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\end{tikzpicture}
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% vim: ft=tex
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