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Re: switching axes in Plot?
*To*: mathgroup at smc.vnet.net
*Subject*: [mg127376] Re: switching axes in Plot?
*From*: Bob Hanlon <hanlonr357 at gmail.com>
*Date*: Fri, 20 Jul 2012 03:54:33 -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*: <gmu8qa$glt$1@smc.vnet.net>
ParametricPlot is also useful
f[x_] = x^2 - 5 x + 6;
Plot[f[x], {x, 1, 4}]
ParametricPlot[{f[x], x}, {x, 1, 4}]
Bob Hanlon
On Thu, Jul 19, 2012 at 3:51 AM, <windlessaegis at gmail.com> wrote:
> On Wednesday, February 11, 2009 5:20:58 AM UTC-5, (unknown) wrote:
>> When using Plot to plot F[x] as a function of x, Mathematica automatically
>> assigns the independent variable x to the horizontal axis and the dependent variable F[x] to the horizontal. I often want to switch this around so that the independent variable runs on the vertical axis and the dependenton the horizontal. I feel sure there ought to be a simple way to tell Plot to make this change but I have never found it and instead have resorted to convoluted approaches. Can anyone tell me what the simple trick is, if it exists?
>> Thanks
>> John Finnigan
>
> Hi,
>
> I just found this looking for the answer myself. Then it hit me: try changing the order that you define the variables within the plot operation.
>
> So as an example, given:
>
> ContourPlot[
> Evaluate[Re[
> Product[x + I y - (a + I b), {a, -2, 2}, {b, -2, 2}]]], {x, -3,
> 3}, {y, -3, 3}]
>
> To swap axes, just define y and then x -- like this:
>
> ContourPlot[
> Evaluate[Re[
> Product[x + I y - (a + I b), {a, -2, 2}, {b, -2, 2}]]], {y, -3,
> 3}, {x, -3, 3}]
>
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