Re: how to orient Polar Plot 0 Degrees at the North Pole

• To: mathgroup at smc.vnet.net
• Subject: [mg128836] Re: how to orient Polar Plot 0 Degrees at the North Pole
• From: Bob Hanlon <hanlonr357 at gmail.com>
• Date: Thu, 29 Nov 2012 06:07:07 -0500 (EST)
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• References: <20121128081614.65AFF6881@smc.vnet.net>

```PolarPlot[
Exp[Cos[t]] - 2 Cos[4 t],
{t, 0, 2 \[Pi]},
PolarAxes -> True]

PolarPlot[
Evaluate[
(Exp[Cos[t]] - 2 Cos[4 t]) /.
t -> t - Pi/2],
{t, 0, 2 \[Pi]},
PolarAxes -> True,
PolarTicks -> {
Table[
{t, FunctionExpand[Mod[(t - Pi/2), 2 Pi]/Degree]},
{t, 0, 2 Pi - Pi/12, Pi/12}],
Automatic}]

Bob Hanlon

On Wed, Nov 28, 2012 at 3:16 AM, mathgroup <fizzymath at knology.net> wrote:
>
> Sometimes I want the 0 Degree  direction of  PolarPlot to be at the
> North Pole......I have been able to do this by applying  Rotate to the
> PolarPlot, e.g....
>
>
> Rotate[PolarPlot[expr...],Pi/2]
>
> but this also Rotates the numbers for the Degrees, etc.  which I
> don't want.....
>
>
> is there another way ?....I looked at the Options to see if there was
> one which allowed you to do this but, if there is such an Option, I
> didn't see it....
>
>
> Thanks.....Jerry Blimbaum
>
>

```

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