Re: Shade area between two polar curves

*To*: mathgroup at smc.vnet.net*Subject*: [mg100173] Re: [mg100154] Shade area between two polar curves*From*: Bob Hanlon <hanlonr at cox.net>*Date*: Wed, 27 May 2009 04:06:38 -0400 (EDT)*Reply-to*: hanlonr at cox.net

Show[{ RegionPlot[ Sqrt[x^2 + y^2] < 1 + 2 x/Sqrt[x^2 + y^2] && x^2 + y^2 > 4, {x, -.5, 3}, {y, -2, 2}, PlotPoints -> 30], PolarPlot[{1 + 2 Cos[t], 2}, {t, 0, 2 Pi}]}, PlotRange -> All, AspectRatio -> 4/5, ImageSize -> 500] Bob Hanlon ---- Chee Lim Cheung <CheeLC at sp.edu.sg> wrote: ============= Hi All I have plotted two graphs using PolarPlot, namely the limacon r=1+2 cos(t) and the circle r = 2 from t = 0 to t = 2 Pi. and I wish to shade the area inside the limacon but outside the circle. Can anyone suggest a way to do it? -- Bob Hanlon