2.21 polar

Polar plots are not really a separate plot style but are listed here for completeness. The option ‘set polar‘ tells gnuplot to interpret input 2D coordinates as <angle>,<radius> rather than <x>,<y>. Many, but not all, 2D plotting styles work in polar mode. The figure shows a combination of plot styles ‘lines‘ and filledcurves. See ‘set polar‘, rrange, ‘set size square‘.

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