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Re: Shade area between two polar curves
*To*: mathgroup at smc.vnet.net
*Subject*: [mg100218] Re: Shade area between two polar curves
*From*: dh <dh at metrohm.com>
*Date*: Thu, 28 May 2009 06:49:40 -0400 (EDT)
*References*: <gvhma6$83c$1@smc.vnet.net>
Hi Chee,
try RegionPlot. Remember that Cos[t]=1/Sqrt[1+Tan[t]^2]:
==============================
f[x_, y_] :=
1 + 2/Sqrt[1 + y^2/x^2] > Sqrt[x^2 + y^2] && Sqrt[x^2 + y^2] > 2
RegionPlot[f[x, y], {x, 0, 3}, {y, -2, 2}]
=================================
Daniel
Chee Lim Cheung 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?
>
> Thanks and Regards
> Chee
>
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