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Diffstat (limited to 'buch/papers/ellfilter/tikz/arccos.tikz.tex')
| -rw-r--r-- | buch/papers/ellfilter/tikz/arccos.tikz.tex | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/buch/papers/ellfilter/tikz/arccos.tikz.tex b/buch/papers/ellfilter/tikz/arccos.tikz.tex new file mode 100644 index 0000000..b11c25d --- /dev/null +++ b/buch/papers/ellfilter/tikz/arccos.tikz.tex @@ -0,0 +1,80 @@ +\begin{tikzpicture}[>=stealth', auto, node distance=2cm, scale=1.2] + + \tikzstyle{zero} = [draw, circle, inner sep =0, minimum height=0.15cm] + \tikzset{pole/.style={cross out, draw=black, minimum size=(0.15cm-\pgflinewidth), inner sep=0pt, outer sep=0pt}} + + \draw[gray, ->] (0,-2) -- (0,2) node[anchor=south]{$\mathrm{Im}~z$}; + \draw[gray, ->] (-5,0) -- (5,0) node[anchor=west]{$\mathrm{Re}~z$}; + + \begin{scope}[xscale=0.6] + + \node[gray, anchor=north] at (-6,0) {$-3\pi$}; + \node[gray, anchor=north] at (-4,0) {$-2\pi$}; + \node[gray, anchor=north] at (-2,0) {$-\pi$}; + % \node[gray, anchor=north] at (0,0) {$0$}; + \node[gray, anchor=north] at (2,0) {$\pi$}; + \node[gray, anchor=north] at (4,0) {$2\pi$}; + \node[gray, anchor=north] at (6,0) {$3\pi$}; + + \node[gray, anchor=east] at (0,-1.5) {$-\infty$}; + % \node[gray, anchor=south east] at (0, 0) {$0$}; + \node[gray, anchor=east] at (0, 1.5) {$\infty$}; + + \clip(-7.5,-2) rectangle (7.5,2); + + % \pause + \draw[ultra thick, ->, darkgreen] (1, 0) -- (0,0); + % \pause + \draw[ultra thick, ->, orange] (0, 0) -- (0,1.5); + % \pause + \draw[ultra thick, ->, cyan] (2, 0) -- (1,0); + \draw[ultra thick, ->, blue] (2,1.5) -- (2, 0); + + % \pause + + \foreach \i in {-2,...,1} { + \begin{scope}[xshift=\i*4cm] + \begin{scope}[] + \draw[->, darkgreen] (-1, 0) -- (0,0); + \draw[->, orange] (0, 0) -- (0,1.5); + \draw[->, orange] (0, 0) -- (0,-1.5); + \draw[->, darkgreen] (1, 0) -- (0,0); + \draw[->, cyan] (2, 0) -- (1,0); + \draw[->, blue] (2,1.5) -- (2, 0); + \draw[->, blue] (2,-1.5) -- (2, 0); + \draw[->, cyan] (2, 0) -- (3,0); + \end{scope} + \node[zero] at (1,0) {}; + \node[zero] at (3,0) {}; + \end{scope} + } + + \end{scope} + + \node[zero] at (4,2) (n) {}; + \node[anchor=west] at (n.east) {Nullstelle}; + + \begin{scope}[yshift=-3.25cm] + + \draw[->, thick](0,0) -- node[anchor=center, fill=white]{$z = \cos^{-1}(w)$} (0,1); + + \end{scope} + \begin{scope}[yshift=-4cm] + + \draw[gray, ->] (-5,0) -- (5,0) node[anchor=west]{$w$}; + + \draw[ultra thick, ->, blue] (-4, 0) -- (-2, 0); + \draw[ultra thick, ->, cyan] (-2, 0) -- (0, 0); + \draw[ultra thick, ->, darkgreen] (0, 0) -- (2, 0); + \draw[ultra thick, ->, orange] (2, 0) -- (4, 0); + + \node[anchor=south] at (-4,0) {$-\infty$}; + \node[anchor=south] at (-2,0) {$-1$}; + \node[anchor=south] at (0,0) {$0$}; + \node[anchor=south] at (2,0) {$1$}; + \node[anchor=south] at (4,0) {$\infty$}; + + \end{scope} + + +\end{tikzpicture}
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