double_pot.tex
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	\begin{tikzpicture}

	\pgfplotsset
	{
	%scale only axis,
	%scaled x ticks = base 10:2,
	%height = 18cm,
	width = 10cm,
	xlabel={$x$},
	xmin = -200, xmax = 200,
	%title = {Aluminium},
	legend style =
	{
	at = {(0.35, 0.95)},
	anchor = north west,
	%nodes={scale=0.8, transform shape}
	}
	%cycle list name = color,
	}

	\begin{axis}
	[
	ylabel={$V(x)$},
	ymin = 0, ymax = 0.09,
	grid style = dashed,
	ymajorgrids = true
	]

	\addplot
	[
	color = cyan,
	smooth,
	domain = -200:200,
	mark = none
	]
	{min(0.5 * 0.003^2 * (x - 64)^2, 0.5 * 0.003^2 * (x + 64)^2)};

	\node[label={45:{$V_0$}},
	black,
	circle,
	fill,
	inner sep=1.7pt,
	on layer = foreground] at (axis cs:0, 0.018432) {};

	\draw[black, dashed, on layer = main] (0, 0) -- (0, 0.09);

	\end{axis}

	\end{tikzpicture}