Re: How to write code for Plotting Polar Coordinates in r

*To*: mathgroup at smc.vnet.net*Subject*: [mg127259] Re: How to write code for Plotting Polar Coordinates in r*From*: Bob Hanlon <hanlonr357 at gmail.com>*Date*: Wed, 11 Jul 2012 18:23:12 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Delivered-to*: mathgroup-newout@smc.vnet.net*Delivered-to*: mathgroup-newsend@smc.vnet.net*References*: <20120711061622.C3B356839@smc.vnet.net>

I do not understand your equations. r should be a function of theta and if theta were a single value (e.g., 1) there would be only a single point. Also, what is the ^.= in the equations? Clear[r] r[theta_] = theta (1 - theta^2); PolarPlot[r[theta], {theta, -1, 1}] PolarPlot[r[theta], {theta, -1, 1}, PlotStyle -> Red, PolarAxes -> Automatic, PolarGridLines -> { Range[0, 2 Pi, Pi/4], Range[0.1, 0.3, 0.1]}, PolarTicks -> {"Degrees", Automatic}, GridLinesStyle -> LightGray] Bob Hanlon On Wed, Jul 11, 2012 at 2:16 AM, Rahul Chakraborty <rahul.6sept at gmail.com> wrote: > Dear All, > > Kindly guide me regarding how to have polar plot in mathematica. > > I have gone through function PolarPlot in virtual book but unable to > get my syntax correctly for the following eqn: > > > r^.=r(1-r^2) > > \[Theta]^.=1 > > > Please guide. > > > Regards, > > Rahul >

**References**:**How to write code for Plotting Polar Coordinates in r and theta ?***From:*Rahul Chakraborty <rahul.6sept@gmail.com>