On 12/8/12, Bill Gosper <billgosper@gmail.com> wrote: rwg>We have a continuous map of a circle onto the closed region depicted in the link: http://www.tweedledum.com/rwg/rad2Image4.gif . Two anomalous short segments appear in the latter graphic: one green, one cyan. WFL I think you mean http://www.tweedledum.com/rwg/rad2fill.htm . The segments aren't anomalous--just their colors. Actually, those are correct. But the corresponding red segment at 1 o'clock should be magenta! --rwg