30 lines
724 B
TeX
30 lines
724 B
TeX
%!TEX root=Grafiken.tex
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\usetikzlibrary{arrows}
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\usetikzlibrary{snakes}
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\begin{tikzpicture}[scale=1.5]
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% https://tex.stackexchange.com/questions/175016/how-is-arc-defined-in-tikz
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%\draw (x,y) arc (start:stop:radius); draws an arc
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%with radius radius
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%starts from (x,y)
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%with center (x-r*cos(start), y-r*sin(start)) and
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%ends at (x-r*cos(start)+r*cos(stop), y-r*sin(start)+r*sin(stop)).
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\draw[help lines] (-5,-5) grid (5,5);
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\draw[red] (1,0) arc (0:56:1) node[midway,xshift=-15, yshift=-6]{$\alpha$};
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\draw [thick,-latex] (0,0) -- (3,0);
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\draw [thick,dashed] (1,1.5) -- (4,1.5);
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\draw [thick, -latex] (0,0) -- (1,1.5);
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\draw [thick,dashed] (3,0) -- (4,1.5);
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\end{tikzpicture}
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