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FilledPlot with Implicit Functions?

• To: mathgroup at smc.vnet.net
• Subject: [mg45784] FilledPlot with Implicit Functions?
• From: "e.t." <e-t at gmx.li>
• Date: Sun, 25 Jan 2004 03:04:40 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

Hi,

how can fill the range between the to circles? FilledPlot will not work 
with implicit functions.
thx,
Oliver

Needs["Graphics`ImplicitPlot`"];
f1 := x^2 + y^2 == 2;
f2 := x^2 + y^2 == 1;
ImplicitPlot[{f1, f2}, {x, -3, 3},
      AxesLabel -> {"x", "y"},
      PlotStyle -> {{}, Dashing[{0.02}]}];