Polar plots

Polar plots are generated by changing the current coordinate system to polar before issuing a plot command. The option set polar tells gnuplot to interpret input 2D coordinates as 4#4angle5#5,4#4radius5#5 rather than 4#4x5#5,4#4y5#5. Many, but not all, of the 2D plotting styles work in polar mode. The figure shows a combination of plot styles lines and filledcurves. See set polar (p. [*]), set rrange (p. [*]), set size square (p. [*]), set theta (p. [*]), set ttics (p. [*]).