This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
WrappedNormalPDF. en PDF of the wrapped normal distribution own PAR Created using the following Mathematica program Assumptions fx Exp Sqrt Pi fwTheta SumTheta Pi Infinity Infinity Wrapped normal distribution for angle Theta PlotTheta Pi Sqrt Theta PlotStyle Magenta Thick PlotTheta Pi Sqrt Theta PlotStyle Red Thick PlotTheta