I really appreciate your help. It would be nice if the option 'polar =
True' could be added to implicit_plot( ) command, or plot( ) command.
El jueves, 22 de octubre de 2020 a las 11:00:07 UTC-7, kcrisman escribió:
>
> How can we plot implicit polar equations like r^2=5-4cos(theta) in
>> SageMath?
>>
>
> Hmm, that is a good question. We certainly support implicit plotting and
> polar plotting, but it doesn't seem that we do together. The way that
> polar plotting is supported is basically that the data is switched to
> [y*cos(x),y*sin(x)] before actually rendering.
>
> Now, you can do something like this:
>
> var('x,y')
> r = sqrt(x^2+y^2)
> theta = arctan2(y,x)
> implicit_plot(r^2==5-4*cos(theta),(x,-4,4),(y,-4,4),aspect_ratio=1)
>
> https://sagecell.sagemath.org/?q=mvmspq
>
> But obviously that is not ideal.
>
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