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35 lines
1.1 KiB
TeX
35 lines
1.1 KiB
TeX
\documentclass[border=2pt]{standalone}
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\usepackage{pgfplots}
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\usepackage{tikz}
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\begin{document}
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\begin{tikzpicture}
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\begin{axis}[
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legend pos=south east,
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legend cell align={left},
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axis x line=middle,
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axis y line=middle,
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grid = major,
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width=11.5cm,
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height=6.5cm,
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grid style={dashed, gray!30},
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xmin=-105.5, % start the diagram at this x-coordinate
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xmax= 105.5, % end the diagram at this x-coordinate
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ymin=-120.5, % start the diagram at this y-coordinate
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ymax= 105.5, % end the diagram at this y-coordinate
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axis background/.style={fill=white},
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xlabel=$x$,
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ylabel=$y$,
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tick align=outside,
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minor tick num=-3,
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]
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\addplot[domain=-100:100.0, black, thin, dashed,samples=200] {x};
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\addplot[domain=0:100.0, red, thick,samples=200] {x^0.88};
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\addplot[domain=-100:0, green, thick,samples=200] {-2*(-x)^0.88};
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\addlegendentry{$f(x)= x$}
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\addlegendentry{$g_{+}(x)=x^{0.88}$}
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\addlegendentry{$g_{-}(x)=-2 \cdot (-x)^{0.88}$}
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\end{axis}
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\end{tikzpicture}
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\end{document}
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