Re: Plotting complex functions

[Doug Stewart]

On Wed, Dec 8, 2010 at 1:49 PM, Børge Strand-Bergesen
<address@hidden> wrote:
> Thanks Martin,
>
> the plot3 examples were a good start. I'm using Octave-3.2.4 in
> windows. WXT terminal is a new consept to me. Do you know how I access
> it under Windows?
>
> Borge
>
> On Wed, Dec 8, 2010 at 19:29, Martin Helm <address@hidden> wrote:
>> Am Mittwoch, 8. Dezember 2010, 18:56:22 schrieb Børge Strand-Bergesen:
>>> Hi,
>>>
>>> I need to plot the complex function H(w) on three axis, Re, Im and w.
>>> This comes very close to the example at
>>> http://commons.wikimedia.org/wiki/File:Circular_polarization_schematic.png
>>> which I found on
>>> http://commons.wikimedia.org/wiki/Category:Gnuplot_diagrams
>>>
>>> How should I create something like this in Octave?
>>>
>>> Once plotted, is it feasible to zoom in and out and pan the plot?
>>>
>>>
>>> Thanks,
>>> Borge
>>
>> The octave command which can draw such a parameterized curve is plot3.
>> If you use the wxt terminal with gnuplot zooming is no problem, same with the
>> fltk backend.
>>
>> If that does not answer your question completely or detailed enough just ask
>> back what specific info you need.
>>
>>
>
> __> Thanks Martin,
>
> the plot3 examples were a good start. I'm using Octave-3.2.4 in
> windows. WXT terminal is a new consept to me. Do you know how I access
> it under Windows?
>
> Borge
>
try help plot3
Just use it like the plot command and a window should open with the plot in it.
If you the click and hold the left mouse button on the plot -- and
then move the mouse -- you should see the plot rotate.
Doug