Pgfplots

Inspiration video, for Linsys lab dag 2, use 15:40.

\usepackage{pgfplots}
\pgfplotsset{compat=1.16}
 
\begin{document}
 
\begin{tikzpicture}
\begin{axis}
[
colormap/viridis,
title = {THIS IS A TITLE},
xlabel = $x$,
ylabel = $y$,
zlabel = $z$
]
\addplot3[
	surf,
	samples=18,
	domain=-3:3
]
{exp(-x^2-y^2)*x};
\end{axis}
\end{tikzpicture}
 
\end{document}

\usepackage{pgfplots}
\pgfplotsset{compat=1.16}
\begin{document}
\begin{tikzpicture}
\begin{axis}
[
clip = false,
axis lines = middle,
xlabel = $x$,
ylabel = $y$,
title = {THIS IS A TITLE}
]
\addplot
 [ 
 color = red,
 samples=50, 
 domain=-2:2,
 ]{sin(deg(x))} 
 node[right, pos=1]{$f(x)=sin(x)$};
\end{axis}
\end{tikzpicture}
\end{document}

\usepackage{pgfplots}
\pgfplotsset{compat=1.16}
\begin{document}
\begin{tikzpicture}
\begin{axis}
[
clip = false,
axis lines = middle,
xlabel = $x$,
ylabel = $y$,
title = {}
]
\addplot
[ 
 color = blue,
 samples=50, 
 domain=,
 ]{} 
 node[right, pos=1]{$f(x)=$};
\end{axis}
\end{tikzpicture}
\end{document}