Example: Polar plot of a sine function with factor in argument

Published 2017-01-01 | Author: Stefan Kottwitz

The sine function is a well known periodic function. Choose an argument factor, which doesn’t divide the period well, and you can see a complicated path around the origin.

This plot was originally made for my blog post on TikZ.de: http://tikz.de/periodisch/

See also the other polar sine plot examples there.

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Polar plot of a sine function with factor in argument

Do you have a question regarding this example, TikZ or LaTeX in general? Just ask in the LaTeX Forum.
Oder frag auf Deutsch auf TeXwelt.de.

\documentclass[border=10pt]{standalone}
\usepackage{pgfplots}
\usepgfplotslibrary{polar,colormaps}
\begin{document}
\begin{tikzpicture}
  \begin{polaraxis}[
      domain  = -14400:14400,
      samples = 3000,
      colormap/cool,
      hide axis
    ]
    \addplot[no markers, mesh, opacity=0.5] {1-sin(40*x/39};
  \end{polaraxis}
\end{tikzpicture}
\end{document}

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